Osservazioni sul rapporto tra vaccinazione antibrucellare e presenza di elminti in agnelle

A field REV-1 vaccination test was performed on 100 sarda and massese ewes, 4 - 5 months-old, divided in two groups: untreated animals and treated with tetramisole and niclosamide against gastro-intestinal parasites. Blood samples were collected 6 times after treatment and vaccination at day 0, 15, 30, 60, 100, 150. Treated ewes showed slightly but constantly higher antibody titers against REV-1 at complement fixation test as well at slow agglutination test. Among treated animals the number of seropositive ewes was higher than in the group of untreated.At the 6th blood collection all the animals were found seronegative at both, CFT and SAT