Persistent infection with Brucella abortus biotype 1 in a cow.
Herr
S
S
Veterinary Research Institute, Onderstepoort, Republic of South Africa.
Ribeiro
L M
LM
Chaparro
F
F
D000818:Animals; D002003:Brucella abortus / Q000276:immunology; D002007:Brucellosis, Bovine / Q000276:immunology*; D002417:Cattle; D003168:Complement Fixation Tests; D005260:Female; D013997:Time Factors