| CRFK | Crandell feline kidney cells |
|---|---|
| FAV | facio-auriculovertebral [sequence]; feline ataxia virus; floppy aortic valve; fowl adenovirus |
| FC | fasciculus cuneatus; fast component [of a neuron]; febrile convulsions; feline conjunctivitis; ferri... |
| FECV | feline enteric coronavirus |
| FeLV | feline leukemia virus |