| AMV | assisted mechanical ventilation; avian myeloblastosis virus |
|---|---|
| ANV | avian nephritis virus |
| ARV | acquired immunodeficiency syndrome-related virus; anterior right ventricle; avian reovirus |
| ASV | anodic stripping voltammetry; antisiphon valve; antisnake venom; avian sarcoma virus |
| ATLA | adult T-cell leukemia virus-associated antigen; alternatives to laboratory animals |