Abstract:
Brucella abortus. S-19 vaccine was inoculated subcutaneously in three groups, each comprising of l 0 crossbred cows, using full (2 .5 mL), half and one quarter of the recommended dose. The sero analysis
revealed non-significant difference in the protection affor:ded by different dose levels of Brucella abortus,
S-19 vaccine. More rapid sero conversion resulted from various reduced doses of vaccine compared with
the standard full dose.
