bovine tuberculosis in the lake victoria zone of tanzania and its possible consequences for human health in the hiv/aids era.a total of 8190 cattle from 42 well-managed herds in the lake victoria zone of tanzania were tested for bovine tuberculosis by a single comparative intradermal test (scitt) using avian and bovine purified protein derivative (ppd) antigens. the prevalence of bovine tuberculosis in this area was found to be 0.2%. there was significant variation (p < 0.001) among the herds tested in the four regions in this zone (kagera, mara, mwanza and shinyanga). the highest prevalence (2.12%) was in a herd of 5 ...19979444076
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