| natural brucella infection in argentine wild foxes. | in the course of an investigation in 1962-64 into the natural occurrence of brucellosis among grey foxes in argentina, agglutination tests were performed on 728 sera of the foxes dusicyon gymnocercus antiquus and d. griseus griseus, captured in the provinces of buenos aires and rio negro. agglutination titres of from 1:25 to 1:800 were found in 173 (23.8%) of the foxes tested, 11.3% having titres of 1:100 or more. in bacteriological testing, eight cultures of brucella abortus, biotype 1, were ob ... | 1966 | 5296540 |