| 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 |
| ICH | idiopathic cortical hyperostosis; infectious canine hepatitis; intracerebral hematoma; intracranial ... |
| ID50 | infectious dose |
|---|---|
| IU | infectious unit |
| TCID(50) | tissue culture infectious dose |