Here you’ll find 14 Viruses that start with A, organized from “Adeno-associated virus (AAV)” to “Avian influenza (avian influenza virus)”. Many entries are human pathogens, animal viruses, or research tools used in diagnostics and gene therapy.
Viruses that start with A are viruses whose accepted names begin with the letter A. They include notable human pathogens and research examples like Adeno-associated virus (AAV).
Below you’ll find the table with Name, Classification, Affects humans?, Common symptoms, and Transmission.
Name: The commonly used virus name, so you can identify each entry quickly and match it to literature and clinical reports.
Classification: Shows family, genus, or species per ICTV so you understand relationships and find related viruses.
Affects humans?: Indicates “Yes” or “No” with a short qualifier so you can see zoonotic or opportunistic risk at a glance.
Common symptoms: Lists typical presentations in five to ten words so you can recognize usual clinical features quickly.
Transmission: States principal routes of spread succinctly so you understand how infection commonly occurs.
Viruses that start with A
| Name | Classification | Affects humans? | Transmission |
|---|---|---|---|
| Adenovirus | Adenoviridae / Mastadenovirus | Yes — common human pathogens | Respiratory droplets; fecal–oral; contact |
| Adeno-associated virus (AAV) | Parvoviridae / Dependoparvovirus | No — nonpathogenic, research-use | Not typically human‑to‑human (vector delivery) |
| Aichi virus | Picornaviridae / Kobuvirus | Yes — human gastroenteritis | Fecal–oral |
| Astrovirus (human) | Astroviridae / Mamastrovirus | Yes — pediatric gastroenteritis | Fecal–oral; close contact |
| Anellovirus (e.g., Torque teno) | Anelloviridae / Alphatorquevirus | Yes — ubiquitous, usually asymptomatic | Blood; body fluids (routes unclear) |
| Alkhurma hemorrhagic fever virus | Flaviviridae / Flavivirus | Yes — zoonotic, human disease | Tick‑borne; contact with livestock |
| Andes virus | Hantaviridae / Orthohantavirus | Yes — zoonotic | Rodent excreta inhalation; rare person‑to‑person |
| Australian bat lyssavirus | Rhabdoviridae / Lyssavirus | Yes — zoonotic | Bat bite or scratch |
| African swine fever virus | Asfarviridae / Asfivirus | No — swine only | Direct contact; ticks; fomites (pigs) |
| African horse sickness virus | Reoviridae / Orbivirus | No — equids only | Vector‑borne — Culicoides midges |
| Amapari virus | Arenaviridae / Mammarenavirus | No — rodent-associated | Rodent contact/excreta |
| Akabane virus | Peribunyaviridae / Orthobunyavirus | No — livestock virus | Vector‑borne — midges (Culicoides) |
| Aino virus | Peribunyaviridae / Orthobunyavirus | No — primarily animals; rare human exposure | Vector‑borne — biting midges |
| Avian influenza (avian influenza virus) | Orthomyxoviridae / Alphainfluenzavirus | Yes — zoonotic potential | Respiratory droplets; bird‑to‑human contact |