Here you’ll find 8 Viruses that start with K, organized from “KI polyomavirus” to “Kyasanur Forest disease virus”. Several entries are human pathogens and zoonoses important for research and clinical diagnosis.

Viruses that start with K are a varied group of viral species whose names begin with the letter K. They include human pathogens like Kyasanur Forest disease virus and agents used in virology research.

Below you’ll find the table with Name, Classification, Affects humans?, Symptoms, Transmission.

Name: The standard virus name used in the table so you can quickly identify each entry and match it elsewhere.

Classification: Family and genus information follows ICTV taxonomy so you can understand each virus’s biological grouping.

Affects humans?: Indicates if the virus infects people, including brief qualifiers like “zoonotic” or “opportunistic”.

Symptoms: Common or typical clinical features in five to ten words to help you recognize presentations.

Transmission: Primary routes of spread described succinctly so you understand how infections are typically passed on.

Viruses that start with K

NameClassification (family/genus/species)Affects humans? (Yes/No; qualifier)Symptoms & Transmission (brief)
Kaposi’s sarcoma-associated herpesvirusHerpesviridae/Rhadinovirus/Human gammaherpesvirus 8Yes/human-specificpurple skin lesions, lymphadenopathy; sexual contact, saliva, blood
Kyasanur Forest disease virusFlaviviridae/Flavivirus/Kyasanur Forest disease virusYes/zoonoticfever, hemorrhage, myalgia; tick bites (Haemaphysalis) tick-borne
Kunjin virusFlaviviridae/Flavivirus/West Nile virus (Kunjin lineage)Yes/zoonoticfever, headache, encephalitis; mosquito-borne (Culex) transmission
KI polyomavirusPolyomaviridae/Betapolyomavirus/Human polyomavirus 3Yes/human-associatedmostly asymptomatic, respiratory symptoms; likely respiratory transmission
Koala retrovirusRetroviridae/Gammaretrovirus/Koala retrovirusNo/animal-specificimmunosuppression, neoplasia in koalas; vertical and contact transmission
Koi herpesvirusAlloherpesviridae/Cyprinivirus/Cyprinid herpesvirus 3No/animal-specificgill necrosis, high carp mortality; waterborne, direct contact
Kashmir bee virusIflaviridae/Iflavirus/Kashmir bee virusNo/animal-specificparalysis, colony decline in bees; Varroa mite and oral transmission
KobuvirusPicornaviridae/Kobuvirus/Aichivirus A (example species)Yes/human-associateddiarrhea, vomiting; fecal-oral transmission

Descriptions

Kaposi’s sarcoma-associated herpesvirus
A human gammaherpesvirus that causes Kaposi sarcoma, especially in immunosuppressed people; transmitted by body fluids (ICTV, WHO)
Kyasanur Forest disease virus
Tick-borne flavivirus from India causing hemorrhagic fever in humans; monkeys are reservoirs, transmitted by ticks (WHO, ICTV)
Kunjin virus
An Australian lineage of West Nile virus causing febrile illness and occasional encephalitis; mosquito-transmitted (CDC, ICTV)
KI polyomavirus
Human polyomavirus first detected in respiratory samples; common in children, disease role remains unclear (PubMed, ICTV)
Koala retrovirus
A gammaretrovirus infecting koalas, linked to leukemia and immune suppression; important for conservation (PubMed, ICTV)
Koi herpesvirus
Causes mass die-offs in common carp and koi; major aquaculture pathogen worldwide (ICTV, PubMed)
Kashmir bee virus
An RNA virus of honeybees associated with paralysis and colony losses, often spread by Varroa mites (PubMed)
Kobuvirus
Genus of picornaviruses including Aichi virus; some species cause human gastroenteritis via fecal-oral spread (ICTV, PubMed)
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