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VetMed Resource

Veterinary information to support practice, based on evidence and continuing education

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Abstract

Foot and mouth disease virus. Type A. was rendered avirulent by 28 passages in day old chicks or 12 in embryonated eggs. These strains, were non-pathogenic, had good antigenicity and did not spread by contact. In field trials with the chick embryo strain immunity lasted at least eight months....

Author(s)
NóBrega, P.
Citation
Biologico, 1963, 29, pp 149-163
Abstract

The number of cases of undulant fever due to the porcine strain of Er. abortus appears to be increasing. In one investigation in the United States of America the organism was isolated from ten cases out of 20, while HUDDLESON, in his researches on the identification of types of brucella, found the...

Author(s)
ANTUNES, A.; CARNEIRO, V.
Citation
Rev. Soc. paul Med. vet., 1933, 3, pp 107-119

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