| IAA | imidazoleacetic acid; indoleacetic acid; infectious agent, arthritis; insulin autoantibody; Internat... |
|---|---|
| IB | idiopathic blepharospasm; immune body; inclusion body; index of body build; infectious bronchitis; I... |
| IBK | infectious bovine keratoconjunctivitis |
| IBR | infectious bovine rhinotracheitis |
| IBRV | infectious bovine rhinotracheitis virus |