A nonlethal mutant of penicillin-resistant feline pneumonitis virus.
D000818:Animals; D002415:Cats; D002689:Chlamydia; D002691:Chlamydophila psittaci / Q000235:genetics*; D010406:Penicillins / Q000494:pharmacology*; D011014:Pneumonia
D010406:Penicillins
MIYAGAWANELLA/genetics; PENICILLIN/pharmacology