With a total of 130 viruses starting with the letter “F,” this comprehensive list highlights a wide variety of viruses from different hosts and environments around the world. Many of these viruses primarily affect plants and animals, with only a few known to impact humans. Notably, this group includes plant viruses spread by insects, animal viruses with veterinary importance, and several bacteriophages that infect bacteria, showing the diverse nature and ecological roles of viruses beginning with “F.”
Explore the detailed table below to find essential information about each virus organized for easy understanding.
Virus Name This column lists the full name of each virus to help you quickly identify it.
Family Here, you can see the virus family or classification, which shows its broader group based on structure and genetics.
Primary Hosts This column tells you which organisms the virus mainly infects, such as humans, animals, plants, insects, or bacteria.
Associated Illness/Symptoms Find information about the common symptoms or diseases linked to the virus in its hosts.
Transmission Method This section explains how the virus spreads, for example, through insect vectors, direct contact, or environmental exposure.
Viruses that start with F
| Viruses | Classification | Affects Humans? | Symptoms | Transmission Method |
|---|---|---|---|---|
| Faba bean necrotic stunt virus | Plant virus | No | Necrotic spots, stunts growth, leaf deformation | Vector-borne (aphids) |
| Faba bean necrotic yellows virus | Plant virus | No | Yellowing, stunting, leaf curling | Vector-borne (aphids) |
| Faba bean yellow leaf virus | Plant virus | No | Yellow leaf symptoms | Vector-borne (aphids) |
| Facey’s paddock virus | Arbovirus | No | Febrile illness in animals (likely marsupials) | Vector-borne (mosquitoes) |
| Fagopyrum esculentum-associated rhabdovirus | Plant virus | No | Symptoms in buckwheat (Fagopyrum esculentum) | Unknown (likely vector-borne or sap) |
| Falco columbarius polyomavirus 1 | Polyomavirus | No | Unknown in Merlin falcons | Unknown (likely direct contact or environmental) |
| Fall armyworm densovirus | Insect virus | No | Mortality, reduced growth in fall armyworm larvae | Oral transmission |
| Fall armyworm nudivirus 1 | Insect virus | No | Mortality, tissue damage in fall armyworm | Oral transmission |
| Fall River virus | Orthobunyavirus | Rarely | Headache, fever, fatigue (in humans if infected) | Vector-borne (mosquitoes) |
| Fan-tailed Gerygone chapparvovirus 1 | Parvovirus | No | Unknown in Fan-tailed Gerygone birds | Unknown |
| Farallon virus | Phlebovirus | No | Unknown (likely rodents as host) | Unknown (likely vector-borne) |
| Farhang virus | Lyssavirus | No | Neurological symptoms in bats | Bite (from infected bat) |
| Fars virus | Nairovirus | No | Unknown (likely affects camels or rodents) | Vector-borne (ticks) |
| Fat-headed ant virus | Dicistrovirus | No | Unknown in ants | Oral transmission (among ants) |
| Fauquier virus | Orthobunyavirus | No | Unknown | Vector-borne (mosquitoes) |
| FBJ murine osteosarcoma virus | Retrovirus | No | Osteosarcoma (bone cancer) in mice | Vertical transmission, laboratory-induced |
| Feather River virus | Orthobunyavirus | Rarely | Mild fever (in humans) | Vector-borne (mosquitoes) |
| Feline astrovirus | Astrovirus | No | Diarrhea, vomiting | Fecal-oral |
| Feline calicivirus | Calicivirus | No | Upper respiratory infection, oral ulcers, lameness | Direct contact, aerosol |
| Feline coronavirus | Coronavirus | No | Mild diarrhea, FIP (fatal) | Fecal-oral |
| Feline foamy virus | Retrovirus | No | Generally asymptomatic | Direct contact |
| Feline immunodeficiency virus | Retrovirus | No | Immunodeficiency, opportunistic infections | Bite wounds |
| Feline leukemia virus | Retrovirus | No | Anemia, cancer, immunosuppression | Direct contact (saliva, nasal secretions) |
| Feline panleukopenia virus | Parvovirus | No | Severe vomiting, diarrhea, lethargy, dehydration | Fecal-oral |
| Feline sarcoma virus | Retrovirus | No | Sarcomas (tumors) | Feline leukemia virus coinfection |
| Feline stool-associated circular virus | Circular DNA virus | No | Unknown, detected in feces | Fecal-oral (presumed) |
| FengKai anphevirus | Anphevirus | No | Unknown (isolated from mosquitoes) | Vector-borne (mosquitoes) |
| Fenghuangshan stadium virus | Bunyavirus | No | Unknown (isolated from mosquitoes) | Vector-borne (mosquitoes) |
| Fern-associated circular DNA virus | Circular DNA virus | No | Unknown in ferns | Unknown |
| Ferret alphaherpesvirus 1 | Alphaherpesvirus | No | Respiratory disease, skin lesions | Direct contact |
| Ferret badnavirus 1 | Badnavirus | No | Unknown in ferrets | Unknown |
| Ferret coronavirus | Coronavirus | No | Enteritis, FIP-like disease | Fecal-oral |
| Ferret hepacivirus | Hepacivirus | No | Hepatitis-like symptoms | Unknown |
| Ferret orthoreovirus | Orthoreovirus | No | Unknown in ferrets | Unknown |
| Festuca leaf streak virus | Plant virus | No | Leaf streaking, mosaic patterns in grasses | Vector-borne (aphids) |
| Festuca mottle virus | Plant virus | No | Mottling, stunting in fescue grasses | Vector-borne (aphids) |
| Fibril-associated badnavirus 1 | Plant virus | No | Unknown (found in plant fibrils) | Unknown (likely sap or vector) |
| Ficaria verna latent virus | Plant virus | No | Latent infection in Lesser Celandine | Unknown |
| Ficus-associated badnavirus 1 | Plant virus | No | Unknown (in Ficus species) | Unknown (likely sap or vector) |
| Ficus benjamina-associated circular DNA virus 1 | Circular DNA virus | No | Unknown in Weeping Fig | Unknown |
| Fig badnavirus 1 | Plant virus | No | Unknown (in Fig plants) | Unknown (likely sap or vector) |
| Fig fleck-associated virus | Plant virus | No | Flecking symptoms on fig leaves | Unknown |
| Fig latent virus 1 | Plant virus | No | Latent infection in Fig trees | Unknown |
| Fig leaf mottle-associated virus 1 | Plant virus | No | Leaf mottling in fig trees | Unknown |
| Fig mild mottle-associated virus | Plant virus | No | Mild leaf mottling in fig trees | Unknown |
| Fig mosaic virus | Plant virus | No | Leaf mottling, ringspots, deformation | Vector-borne (mites) |
| Fiji disease virus | Plant virus | No | Galls, stunting, leaf distortion in sugarcane | Vector-borne (planthoppers) |
| Fin V-like virus | RNA virus | No | Unknown (detected in environmental samples) | Unknown |
| Finch astrovirus | Astrovirus | No | Gastrointestinal symptoms in finches | Fecal-oral |
| Finlay River virus | Orthobunyavirus | No | Unknown (isolated from mosquitoes) | Vector-borne (mosquitoes) |
| Fish lymphocystis disease virus | Iridovirus | No | Tumor-like growths on fish skin/fins | Direct contact, environmental |
| Fish retrovirus 1 | Retrovirus | No | Unknown in fish | Unknown |
| Fissidens-associated cyclovirus | Cyclovirus | No | Unknown (associated with moss) | Unknown |
| Flanders virus | Reovirus | No | Unknown (avian host) | Vector-borne (mosquitoes) |
| Flat oyster picornavirus 1 | Picornavirus | No | Unknown in flat oysters | Unknown |
| Flatworm rhabdovirus | Rhabdovirus | No | Unknown in flatworms | Unknown |
| Flavescence dorée phytoplasma-infecting Plecia 1-like virus | Bacteriophage | No | Infects phytoplasma (plant pathogen) | N/A (infects bacteria) |
| Flea-associated chuvirus | Chuvirus | No | Unknown in fleas | Unknown |
| Flea-associated fraservirus | Fraservirus | No | Unknown in fleas | Unknown |
| Flea-associated phasivirus | Phasivirus | No | Unknown in fleas | Unknown |
| Flea-associated rhabdovirus | Rhabdovirus | No | Unknown in fleas | Unknown |
| Flea-associated sigmavirus | Sigmavirus | No | Unknown in fleas | Unknown |
| Flea-associated tetralike virus | Tetravirus | No | Unknown in fleas | Unknown |
| Flea-borne rhabdovirus 1 | Rhabdovirus | No | Unknown in fleas | Vector-borne (fleas) |
| Flea-borne rhabdovirus 2 | Rhabdovirus | No | Unknown in fleas | Vector-borne (fleas) |
| Flexal virus | Arenavirus | No | Febrile illness, hemorrhagic fever (in rodents/humans) | Rodent excreta, aerosol |
| Florida anole anellovirus | Anellovirus | No | Unknown in Florida anoles | Unknown |
| Florida anole deltapartitivirus | Deltapartitivirus | No | Unknown in Florida anoles | Unknown |
| Florida J virus | Flavivirus | No | Unknown (isolated from mosquitoes) | Vector-borne (mosquitoes) |
| Florida poultry reovirus | Reovirus | No | Runting-stunting syndrome, enteritis in poultry | Fecal-oral |
| Florisbad virus | Orthobunyavirus | No | Unknown (isolated from ticks) | Vector-borne (ticks) |
| Flounder anellovirus | Anellovirus | No | Unknown in flounders | Unknown |
| Flowering plant-associated circular DNA virus 1 | Circular DNA virus | No | Unknown in flowering plants | Unknown |
| Foeniculum-associated ophiovirus | Ophiovirus | No | Unknown in fennel plants | Unknown |
| Fomite-associated DNA virus 1 | DNA virus | No | Unknown (environmental) | Environmental (on surfaces) |
| Foot-and-mouth disease virus | Aphthovirus | No | Blisters, lameness, weight loss in livestock | Direct contact, aerosol, fomites |
| Forcepia-associated densovirus | Densovirus | No | Unknown (in sponges of genus Forcepia) | Unknown |
| Forcicomyia-associated chuvirus 1 | Chuvirus | No | Unknown (in sand flies) | Unknown |
| Formica fusca virus | Dicistrovirus | No | Unknown in ants (Formica fusca) | Oral transmission (among ants) |
| Formica polyctena virus | Dicistrovirus | No | Unknown in ants (Formica polyctena) | Oral transmission (among ants) |
| Formica truncorum virus | Dicistrovirus | No | Unknown in ants (Formica truncorum) | Oral transmission (among ants) |
| Formosa virus | Reovirus | No | Unknown (isolated from mosquitoes) | Vector-borne (mosquitoes) |
| Forrest-River virus | Orthobunyavirus | No | Unknown (isolated from mosquitoes) | Vector-borne (mosquitoes) |
| Fort Morgan virus | Alphavirus | Rarely | Encephalitis, fever (in humans) | Vector-borne (mosquitoes) |
| Fort Sherman virus | Bunyavirus | No | Unknown (isolated from ticks) | Vector-borne (ticks) |
| Fortune-telling bat virus | Lyssavirus | No | Neurological symptoms in bats | Bite (from infected bat) |
| Fouchou virus | Flavivirus | No | Unknown (isolated from ticks) | Vector-borne (ticks) |
| Foul Bay virus | Bunyavirus | No | Unknown (isolated from mosquitoes) | Vector-borne (mosquitoes) |
| Foulper virus | Unclassified | No | Unknown | Unknown |
| Fountain virus | Unclassified | No | Unknown | Unknown |
| Fowl adenovirus A | Adenovirus | No | Respiratory disease, immunosuppression in chickens | Fecal-oral, direct contact |
| Fowl adenovirus B | Adenovirus | No | Respiratory disease, immunosuppression in chickens | Fecal-oral, direct contact |
| Fowl adenovirus C | Adenovirus | No | Respiratory disease, immunosuppression in chickens | Fecal-oral, direct contact |
| Fowl adenovirus D | Adenovirus | No | Respiratory disease, immunosuppression in chickens | Fecal-oral, direct contact |
| Fowl adenovirus E | Adenovirus | No | Respiratory disease, immunosuppression in chickens | Fecal-oral, direct contact |
| Fowlpox virus | Poxvirus | No | Cutaneous lesions, diphtheritic lesions in birds | Direct contact, mosquito bites |
| Fox fecal nidovirus | Nidovirus | No | Unknown (detected in fox feces) | Fecal-oral (presumed) |
| Foxglove mosaic virus | Potyvirus | No | Mosaic, mottling in foxglove plants | Sap transmission, aphids |
| Foxtail mosaic virus | Potyvirus | No | Mosaic, streaking in grasses | Sap transmission, aphids |
| Fragaria chiloensis cryptic virus | Cryptovirus | No | Latent infection in strawberries | Vertical transmission (seed/pollen) |
| Fragaria chiloensis latent virus | Plant virus | No | Latent infection in strawberries | Unknown (likely vertical) |
| Fragaria vesca-associated chrysovirus | Chrysovirus | No | Unknown in wild strawberry | Unknown |
| Fragaria-associated circular DNA virus | Circular DNA virus | No | Unknown in strawberries | Unknown |
| Frankliniella occidentalis associated toti-like virus | Totivirus | No | Unknown (in Western flower thrips) | Unknown |
| Frankliniella occidentalis associated virus 1 | Unclassified | No | Unknown (in Western flower thrips) | Unknown |
| Frankliniella-associated ourmia-like virus | Ourmiavirus | No | Unknown (in thrips) | Unknown |
| Fraser Point virus | Orbivirus | No | Unknown (isolated from ticks) | Vector-borne (ticks) |
| Frasera-like virus | Plant virus | No | Unknown (associated with Frasera plants) | Unknown |
| Freesia faint vein virus | Tymovirus | No | Faint vein clearing in freesia | Sap transmission, vector |
| Freesia mosaic virus | Potyvirus | No | Mosaic, mottling, color breaking in freesia | Sap transmission, aphids |
| French anole anellovirus | Anellovirus | No | Unknown in French anoles | Unknown |
| French Guiana-associated sobe-like virus | Sobemovirus | No | Unknown (isolated from mosquitoes) | Vector-borne (mosquitoes) |
| Freycinetia-associated badnavirus 1 | Badnavirus | No | Unknown in Freycinetia plants | Unknown (likely sap or vector) |
| Friend murine leukemia virus | Retrovirus | No | Leukemia in mice | Vertical transmission, laboratory-induced |
| Frijoles virus | Phlebovirus | No | Febrile illness (in rodents/humans) | Vector-borne (sand flies) |
| Frog adenovirus 1 | Adenovirus | No | Hemorrhagic disease, hepatitis in frogs | Direct contact, environmental |
| Frog virus 3 | Iridovirus | No | Systemic disease, edema, hemorrhage in amphibians | Direct contact, environmental |
| Frome virus | Orthobunyavirus | No | Unknown (isolated from mosquitoes) | Vector-borne (mosquitoes) |
| Fronton virus | Orthobunyavirus | No | Unknown (isolated from ticks) | Vector-borne (ticks) |
| Fruit fly-associated rhabdovirus | Rhabdovirus | No | Unknown in fruit flies | Unknown (likely oral or vertical) |
| Fuchsia latent virus | Potyvirus | No | Latent infection in fuchsia plants | Sap transmission, aphids |
| Fujian anphevirus | Anphevirus | No | Unknown (isolated from mosquitoes) | Vector-borne (mosquitoes) |
| Fujian sobemo-like virus | Sobemovirus | No | Unknown (isolated from environmental samples) | Unknown |
| Fujinami sarcoma virus | Retrovirus | No | Sarcomas (tumors) in chickens | Laboratory-induced, rarely natural |
| Fukugawa virus | Unclassified | No | Unknown | Unknown |
| Fukuoka virus | Unclassified | No | Unknown | Unknown |
| Fushun virus | Unclassified | No | Unknown | Unknown |
| Fusiform-shaped archaeal virus 1 | Archaeal virus | No | Lysis/infection of archaea | N/A (infects microbes) |
| Fusobacterium phage Fs1 | Bacteriophage | No | Lysis/infection of Fusobacterium bacteria | N/A (infects bacteria) |
| Fusobacterium phage Fs2 | Bacteriophage | No | Lysis/infection of Fusobacterium bacteria | N/A (infects bacteria) |
Descriptions
Faba bean necrotic stunt virus
This plant virus primarily affects faba beans, causing severe stunting and necrotic lesions on leaves, which can lead to significant crop yield losses. It’s transmitted by sap-feeding insects like aphids.
Faba bean necrotic yellows virus
A significant pathogen of faba beans and other legumes, this virus causes characteristic yellowing, stunted growth, and upward curling of leaves. It spreads efficiently via several aphid species in the field.
Faba bean yellow leaf virus
Affecting faba beans, this virus is characterized by distinct yellowing of the leaves, which can reduce the plant’s photosynthetic capacity and overall vigor. Aphids are known to facilitate its spread between plants.
Facey’s paddock virus
An arbovirus identified in Australia, Facey’s paddock virus is carried by mosquitoes and is thought to primarily infect marsupials, though its exact impact on host health is not widely documented for general audiences.
Fagopyrum esculentum-associated rhabdovirus
This rhabdovirus is found in common buckwheat plants. While its specific disease symptoms are not widely detailed, rhabdoviruses often cause stunting and mosaic patterns in plants.
Falco columbarius polyomavirus 1
Discovered in Merlin falcons, this polyomavirus’s clinical significance is not well-established. Polyomaviruses can cause various issues in birds, from mild to severe, but this specific one is still being studied.
Fall armyworm densovirus
A pathogen that infects fall armyworm larvae, a major agricultural pest. This densovirus can cause significant mortality and impaired development, offering potential as a biological control agent for these destructive insects.
Fall armyworm nudivirus 1
Targeting the fall armyworm, a widespread crop pest, this nudivirus can cause disease and death in larvae. It represents another potential tool for the biological control of this economically important insect.
Fall River virus
A mosquito-borne orthobunyavirus found in North America. While primarily affecting animals, it can rarely cause mild flu-like symptoms in humans, including fever, headache, and fatigue, similar to Jamestown Canyon virus.
Fan-tailed Gerygone chapparvovirus 1
This parvovirus has been identified in the small insectivorous Fan-tailed Gerygone bird species. The specific symptoms or impacts on these birds are not yet well-characterized in public literature.
Farallon virus
A phlebovirus found in rodents, Farallon virus is still under study. Phleboviruses can cause various diseases, but specific symptoms or transmission routes for this particular virus are not widely known.
Farhang virus
A lyssavirus identified in bats, belonging to the same genus as rabies virus. While not extensively studied for human impact, lyssaviruses are serious neurological pathogens; direct bat contact should be avoided.
Fars virus
A nairovirus that has been isolated from ticks, with camels and rodents identified as potential hosts. Its specific symptoms and public health implications are not widely detailed.
Fat-headed ant virus
This virus infects fat-headed ants. Dicistroviruses are known to cause a range of symptoms in insects, including mortality or behavioral changes, but specific public information for this virus is limited.
Fauquier virus
An orthobunyavirus closely related to Hart Park virus, primarily detected in mosquitoes. Its impact on human health or specific animal hosts is not well-documented in general public information.
FBJ murine osteosarcoma virus
This retrovirus causes osteosarcoma, a type of bone cancer, in mice. It has been extensively studied in laboratories as a model for understanding cancer development. It does not naturally infect humans.
Feather River virus
A mosquito-borne orthobunyavirus found in North America, related to viruses causing febrile illness. While mainly circulating in birds, it can rarely cause mild, non-specific febrile symptoms in humans.
Feline astrovirus
Commonly found in domestic cats, this astrovirus is associated with gastrointestinal symptoms such as diarrhea and vomiting, particularly in young or immunocompromised felines. It is transmitted via the fecal-oral route.
Feline calicivirus
A highly contagious virus affecting cats, causing upper respiratory infections, oral ulcers, and sometimes lameness. Vaccinations are available for prevention, and it spreads easily through direct contact between cats.
Feline coronavirus
Widespread in cats, this coronavirus typically causes mild intestinal symptoms. However, it can mutate into a deadly form known as Feline Infectious Peritonitis (FIP), which is often fatal.
Feline foamy virus
A common retrovirus found in cats worldwide, generally considered non-pathogenic, meaning it rarely causes any noticeable symptoms or disease in infected felines. It is typically transmitted through direct contact.
Feline immunodeficiency virus
Similar to human HIV, FIV weakens a cat’s immune system, making it susceptible to secondary infections and certain cancers. It is primarily transmitted through bite wounds from infected cats.
Feline leukemia virus
A serious and often fatal retrovirus in cats, causing various diseases including anemia, lymphomas, and severe immunosuppression. It spreads through close contact, especially via saliva. Vaccinations are available.
Feline panleukopenia virus
A highly contagious and severe parvovirus affecting cats, causing panleukopenia (low white blood cell count), severe gastrointestinal signs, and often fatal dehydration. Vaccinations are highly effective in prevention.
Feline sarcoma virus
This retrovirus is a recombinant form of feline leukemia virus (FeLV) that can cause aggressive sarcomas (connective tissue cancers) in cats. It often requires FeLV coinfection to arise.
Feline stool-associated circular virus
A recently identified circular DNA virus found in feline stool samples. Its exact clinical significance or associated symptoms in cats are not yet well-understood.
FengKai anphevirus
A newly discovered anphevirus identified in mosquitoes from China. Its specific hosts, symptoms, or potential impact on human or animal health are still largely unknown.
Fenghuangshan stadium virus
A novel bunyavirus isolated from mosquitoes in China. The virus’s specific host, symptoms, and potential for causing disease in animals or humans have not been publicly detailed.
Fern-associated circular DNA virus
This virus has been identified in ferns, representing a new category of plant-associated circular DNA viruses. Its specific effects on ferns or modes of transmission are not widely documented.
Ferret alphaherpesvirus 1
A herpesvirus specifically affecting ferrets, known to cause respiratory symptoms, skin lesions, and sometimes more severe systemic disease. It spreads via close contact between ferrets.
Ferret badnavirus 1
This badnavirus has been identified in ferrets, an unusual host for a virus family (Badnaviridae) typically associated with plants. Its specific impact on ferret health is not yet characterized.
Ferret coronavirus
A coronavirus affecting ferrets, primarily causing gastrointestinal distress (enteritis). In some cases, it can lead to a more severe and often fatal systemic disease similar to FIP in cats.
Ferret hepacivirus
A hepacivirus found in ferrets, sharing similarities with Hepatitis C virus. It is associated with liver inflammation and disease in ferrets, though its full clinical picture is still being investigated.
Ferret orthoreovirus
This orthoreovirus has been detected in ferrets. While reoviruses can cause various symptoms, including respiratory or gastrointestinal, the specific effects of this virus on ferrets are not well-detailed.
Festuca leaf streak virus
This virus infects fescue grasses, causing characteristic streaking and mosaic patterns on the leaves, which can reduce forage quality and yield in pastures. Aphids are the primary vectors.
Festuca mottle virus
Another virus affecting fescue grasses, it causes mottling of leaves and stunting of the plant. These symptoms can impact the health and productivity of fescue crops.
Fibril-associated badnavirus 1
A badnavirus identified in plant fibrils, suggesting it integrates into plant cell structures. Its specific host plant and the symptoms it causes are not widely detailed in general information.
Ficaria verna latent virus
This virus causes a latent infection in Ficaria verna (Lesser Celandine), meaning it often shows no obvious symptoms. Its presence might only be detectable through molecular methods.
Ficus-associated badnavirus 1
A badnavirus found in Ficus (fig) species. Badnaviruses are known to cause various diseases in plants, but specific symptoms for this particular virus in Ficus are not widely documented.
Ficus benjamina-associated circular DNA virus 1
This novel circular DNA virus is associated with Ficus benjamina, commonly known as the Weeping Fig. Its specific pathogenic effects on the plant are not publicly well-established.
Fig badnavirus 1
A badnavirus identified in fig plants. While badnaviruses often cause stunting, mosaic, or defoliation in their hosts, the specific symptoms of this variant are not widely detailed.
Fig fleck-associated virus
This virus is associated with the symptom of “flecking” on the leaves of fig trees, which appears as small, discolored spots or marks. Its transmission method is not commonly specified.
Fig latent virus 1
This virus causes a latent infection in fig trees, meaning that infected trees may show no visible symptoms. Its presence can be confirmed through molecular diagnostic tests.
Fig leaf mottle-associated virus 1
Associated with mottling symptoms on the leaves of fig trees, where areas of discoloration create a patchy or variegated appearance. This can affect the aesthetic and health of the tree.
Fig mild mottle-associated virus
Causes mild mottling symptoms on the leaves of fig trees. Compared to other fig viruses, its impact might be less severe, resulting in subtle discoloration patterns.
Fig mosaic virus
A widespread and common virus affecting fig trees, causing characteristic leaf mottling, ringspots, and often leaf deformation. It is transmitted by eriophyid mites.
Fiji disease virus
A highly destructive plant virus of sugarcane, causing severe stunting, leaf distortion, and characteristic waxy galls on the undersides of leaves. It is transmitted by planthoppers and leads to significant crop losses.
Fin V-like virus
This virus is named for its similarity to other “Fin” viruses, often found in marine environments or associated with aquatic organisms. Its specific host or symptoms are not widely documented.
Finch astrovirus
This astrovirus affects finches, potentially causing gastrointestinal upset such as diarrhea and general malaise. It spreads among birds via the fecal-oral route.
Finlay River virus
An orthobunyavirus isolated from mosquitoes. Its specific hosts, symptoms in animals, or potential for human infection are not widely documented in public health literature.
Fish lymphocystis disease virus
Causes lymphocystis disease in fish, characterized by large, wart-like growths on the skin and fins. While unsightly, these growths are generally benign and rarely fatal unless severe.
Fish retrovirus 1
A retrovirus identified in fish. Retroviruses in animals can cause a variety of effects, including tumors or immunodeficiency, but specific information for this fish retrovirus is limited.
Fissidens-associated cyclovirus
This cyclovirus has been detected in Fissidens moss species. The specific impact it has on the moss or its method of transmission are not widely known.
Flanders virus
An avian reovirus primarily found in birds and transmitted by mosquitoes. While detected in mosquitoes that bite humans, it is generally not considered a human pathogen and its symptoms are unknown.
Flat oyster picornavirus 1
A picornavirus identified in flat oysters. Picornaviruses can cause various diseases in their hosts, but the specific effects of this virus on oyster health are not widely documented.
Flatworm rhabdovirus
This rhabdovirus has been identified in flatworms. Rhabdoviruses can cause diverse diseases, but the specific symptoms or impact of this virus on flatworm biology are not commonly known.
Flavescence dorée phytoplasma-infecting Plecia 1-like virus
This is a virus that infects a phytoplasma, which itself is a bacterial plant pathogen causing Flavescence dorée disease in grapevines. It doesn’t directly infect plants or animals.
Flea-associated chuvirus
A chuvirus identified in fleas. Chu viruses are a diverse group, and their specific impacts on insects or potential for broader transmission are still being investigated.
Flea-associated fraservirus
This fraservirus has been detected in fleas. The specific effects this virus might have on the flea host, or its wider ecological role, are not publicly well-established.
Flea-associated phasivirus
A phasivirus found in fleas. Phasiviruses are a relatively new group of RNA viruses, and their specific biological roles and hosts are areas of ongoing research.
Flea-associated rhabdovirus
This rhabdovirus is associated with fleas. Rhabdoviruses are diverse; specific symptoms or significance of this variant in fleas are not broadly known.
Flea-associated sigmavirus
A sigmavirus detected in fleas. Sigmaviruses are known to cause persistent infections in their insect hosts; however, specific effects of this particular virus are not widely documented.
Flea-associated tetralike virus
This tetravirus-like agent has been found in fleas. Tetraviruses typically infect insects, and while their roles vary, specific information for this flea-associated type is limited.
Flea-borne rhabdovirus 1
A rhabdovirus carried by fleas. While some rhabdoviruses are significant pathogens, the specific symptoms or hosts for this flea-borne virus are not widely characterized.
Flea-borne rhabdovirus 2
Another rhabdovirus found to be carried by fleas. As with other newly identified insect viruses, detailed information on its pathology or broader implications is often scarce.
Flexal virus
An arenavirus primarily affecting rodents in South America. While it rarely causes severe febrile illness or hemorrhagic fever in humans, transmission is usually through contact with infected rodent excreta.
Florida anole anellovirus
An anellovirus identified in Florida anoles (a type of lizard). Anelloviruses are very common in many species, often causing asymptomatic infections; specific effects here are unknown.
Florida anole deltapartitivirus
This deltapartitivirus has been detected in Florida anoles. Partitiviruses typically infect plants or fungi, so its presence in a reptile is noteworthy, though its impact is not known.
Florida J virus
A flavivirus isolated from mosquitoes in Florida. Flaviviruses include many important human pathogens, but the specific pathogenicity or hosts of Florida J virus are not widely known.
Florida poultry reovirus
This reovirus causes runting-stunting syndrome and enteritis in chickens, leading to poor growth and digestive issues in poultry flocks. It is a significant concern for the poultry industry.
Florisbad virus
An orthobunyavirus identified from ticks in South Africa. Its natural hosts, symptoms, or any potential for human infection are not widely documented in general literature.
Flounder anellovirus
An anellovirus found in flounder fish. Similar to other anelloviruses, it may cause persistent but often asymptomatic infections; specific impacts on flounder health are not detailed.
Flowering plant-associated circular DNA virus 1
This circular DNA virus has been identified in flowering plants. Its specific host range, the symptoms it causes, or its mode of transmission are not commonly known.
Foeniculum-associated ophiovirus
An ophiovirus associated with Foeniculum (fennel) plants. Ophioviruses can cause various symptoms like mosaic and distortion in plants, but specific information for this variant is limited.
Fomite-associated DNA virus 1
This refers to a DNA virus detected on inanimate surfaces (fomites). Its specific host, pathogenicity, or whether it causes disease is not defined, but rather signifies environmental presence.
Foot-and-mouth disease virus
A highly contagious and economically devastating virus affecting cloven-hoofed animals like cattle, pigs, and sheep. It causes fever, blisters in the mouth and feet, leading to severe lameness and production losses.
Forcepia-associated densovirus
A densovirus identified in sponges of the genus Forcepia. Densoviruses typically infect insects, so its presence in sponges is notable, though its specific impact is not known.
Forcicomyia-associated chuvirus 1
A chuvirus identified in sand flies of the genus Forcipomyia. Chu viruses are a diverse group; their specific effects on insects or potential for broader transmission are still being investigated.
Formica fusca virus
This dicistrovirus infects the ant species Formica fusca. Specific symptoms are not widely detailed, but dicistroviruses can cause mortality or behavioral changes in insects.
Formica polyctena virus
A dicistrovirus found in Formica polyctena ants. Like other insect dicistroviruses, it may cause various effects ranging from asymptomatic infection to reduced fitness or mortality in the ant colony.
Formica truncorum virus
This virus infects Formica truncorum ants. While its precise impact isn’t widely publicized, dicistroviruses are known to affect ant health and colony dynamics.
Formosa virus
A reovirus isolated from mosquitoes. Its specific hosts, symptoms in animals, or potential for human infection are not widely documented in general public information.
Forrest-River virus
An orthobunyavirus isolated from mosquitoes in Australia. Its specific hosts, symptoms in animals, or potential for human infection are not widely documented in general public information.
Fort Morgan virus
An alphavirus transmitted by mosquitoes, primarily affecting birds. It can rarely cause mild febrile illness or, in severe cases, encephalitis in humans, particularly in North America.
Fort Sherman virus
A bunyavirus identified from ticks. Its specific hosts, symptoms, or any potential for human infection are not widely documented in general public information.
Fortune-telling bat virus
A lyssavirus identified in bats in China, named after a specific bat species. Like other lyssaviruses, it can cause severe neurological disease in mammals and requires caution.
Fouchou virus
A flavivirus isolated from ticks. Its specific hosts, symptoms in animals, or potential for human infection are not widely documented in general public information.
Foul Bay virus
A bunyavirus isolated from mosquitoes. Its specific hosts, symptoms, or any potential for human infection are not widely documented in general public information.
Foulper virus
A virus whose classification and host information are not widely available in public databases or scientific literature. Its impact or symptoms are unknown.
Fountain virus
A virus with limited public information regarding its classification, host, or any associated symptoms. It may be a recently identified or less studied pathogen.
Fowl adenovirus A
Causes respiratory disease, inclusion body hepatitis, and immunosuppression in chickens. It’s a significant pathogen in poultry, leading to economic losses due to mortality and reduced production.
Fowl adenovirus B
One of several fowl adenoviruses, causing similar clinical signs to other types, including respiratory problems and immunosuppression in chickens, impacting their health and productivity.
Fowl adenovirus C
This adenovirus type contributes to various conditions in chickens, such as respiratory issues and immunosuppression, making birds more susceptible to other infections.
Fowl adenovirus D
Identified as a cause of disease in chickens, including respiratory signs and inclusion body hepatitis. It is a widespread pathogen in poultry farms.
Fowl adenovirus E
The final serotype of fowl adenovirus commonly recognized, causing a range of diseases in chickens, especially respiratory and liver issues, leading to economic losses.
Fowlpox virus
Causes fowlpox in birds, characterized by skin lesions (warts) on unfeathered areas or diphtheritic lesions in the mouth and respiratory tract. It can be transmitted by direct contact or mosquitoes.
Fox fecal nidovirus
A nidovirus identified from the feces of foxes. Nidoviruses are a large group, but the specific symptoms or pathogenicity of this fox-associated variant are not widely detailed.
Foxglove mosaic virus
This potyvirus infects foxglove plants, causing characteristic mosaic patterns and mottling on the leaves, which can reduce the plant’s ornamental value and vigor. It is aphid-transmitted.
Foxtail mosaic virus
A potyvirus affecting various grass species, including foxtail. It causes mosaic patterns, streaking, and mottling on leaves, potentially impacting forage or grain production. It is spread by aphids.
Fragaria chiloensis cryptic virus
A cryptic virus found in Fragaria chiloensis (a wild strawberry species) that causes a latent infection, meaning infected plants show no visible symptoms. It is transmitted through seeds and pollen.
Fragaria chiloensis latent virus
This virus also causes a latent infection in Fragaria chiloensis, without causing overt disease symptoms. Its primary mode of transmission is likely vertical, from parent plant to offspring.
Fragaria vesca-associated chrysovirus
A chrysovirus detected in Fragaria vesca (wild strawberry). Chrysoviruses are known to cause symptoms like mottling and stunting in plants, but specific effects here are not well-documented.
Fragaria-associated circular DNA virus
This novel circular DNA virus is associated with strawberry plants (Fragaria species). Its specific effects on strawberry health or its mode of transmission are not widely known.
Frankliniella occidentalis associated toti-like virus
A totivirus-like agent identified in Frankliniella occidentalis (Western flower thrips), a common agricultural pest. Its impact on the thrips or plants is not extensively detailed.
Frankliniella occidentalis associated virus 1
A virus associated with the Western flower thrips (Frankliniella occidentalis). Its classification and specific biological effects on the thrips or any potential plant hosts are not widely known.
Frankliniella-associated ourmia-like virus
An ourmiavirus-like agent found in thrips (Frankliniella species). Ourmiaviruses are plant viruses transmitted by fungi, so its presence in thrips suggests a complex ecological role.
Fraser Point virus
An orbivirus isolated from ticks. Its specific hosts, symptoms, or any potential for human infection are not widely documented in general public information.
Frasera-like virus
This virus is named for its association with Frasera plants. Its specific classification beyond “virus,” its symptoms, or its mode of transmission are not widely known.
Freesia faint vein virus
A tymovirus affecting freesia plants, causing subtle vein clearing on the leaves. While often mild, it can impact the ornamental quality of the flowers.
Freesia mosaic virus
A common potyvirus infecting freesia, causing prominent mosaic patterns, mottling, and characteristic color breaking in the flower petals, reducing their commercial value. It is aphid-transmitted.
French anole anellovirus
An anellovirus identified in anoles from French Guiana. Anelloviruses are ubiquitous and often cause asymptomatic infections in their hosts; specific effects here are unknown.
French Guiana-associated sobe-like virus
A sobemovirus-like agent identified in mosquitoes from French Guiana. Sobemoviruses typically infect plants, making its presence in mosquitoes notable; its specific host and symptoms are unclear.
Freycinetia-associated badnavirus 1
A badnavirus found in Freycinetia plants, a genus of tropical flowering plants. Badnaviruses typically cause various plant diseases, but specific symptoms for this variant are not widely detailed.
Friend murine leukemia virus
This retrovirus causes erythroleukemia in mice and has been a classic research model for studying viral oncogenesis and immunology. It does not naturally infect humans.
Frijoles virus
A phlebovirus transmitted by sand flies, found in Central and South America. It can cause a febrile illness in humans, characterized by fever, headache, and muscle pain.
Frog adenovirus 1
This adenovirus infects frogs, causing severe systemic disease characterized by hemorrhage and hepatitis, often leading to significant mortality in amphibian populations.
Frog virus 3
A well-studied iridovirus that causes systemic infections in various amphibian species, leading to edema, hemorrhage, and high mortality rates, posing a threat to wild populations.
Frome virus
An orthobunyavirus isolated from mosquitoes. Its specific hosts, symptoms in animals, or potential for human infection are not widely documented in general public information.
Fronton virus
An orthobunyavirus identified from ticks. Its specific hosts, symptoms, or any potential for human infection are not widely documented in general public information.
Fruit fly-associated rhabdovirus
This rhabdovirus has been found in fruit flies. While rhabdoviruses affect diverse hosts, specific impacts on fruit flies or transmission methods are not widely detailed.
Fuchsia latent virus
A potyvirus that causes a latent infection in fuchsia plants, meaning infected plants often show no visible symptoms. It can be spread through sap or by aphids.
Fujian anphevirus
A newly discovered anphevirus identified in mosquitoes from China. Its specific hosts, symptoms, or potential impact on human or animal health are still largely unknown.
Fujian sobemo-like virus
A sobemovirus-like agent identified in environmental samples from Fujian, China. Sobemoviruses typically infect plants, so its host and specific pathogenicity are not well-defined.
Fujinami sarcoma virus
An avian retrovirus that causes aggressive sarcomas (connective tissue cancers) in chickens. It is primarily studied in research settings as a model for viral carcinogenesis.
Fukugawa virus
A virus with limited public information regarding its classification, host, or any associated symptoms. It may be a recently identified or less studied pathogen.
Fukuoka virus
A virus whose classification and host information are not widely available in public databases or scientific literature. Its impact or symptoms are unknown.
Fushun virus
A virus with limited public information regarding its classification, host, or any associated symptoms. It may be a recently identified or less studied pathogen.
Fusiform-shaped archaeal virus 1
This unique, spindle-shaped virus infects archaea, a domain of single-celled microorganisms distinct from bacteria. It plays a role in the microbial ecosystem by controlling archaeal populations.
Fusobacterium phage Fs1
A bacteriophage that specifically infects Fusobacterium bacteria. Phages are viruses that can destroy bacteria, making them potential tools for antibacterial therapies.
Fusobacterium phage Fs2
Another bacteriophage targeting Fusobacterium species. Like Fs1, it contributes to the regulation of bacterial populations and holds potential for bacteriophage therapy against infections.