visceral leishmaniasis in somalia: prevalence of leishmanin-positive and seropositive inhabitants in an endemic an endemic area of somalia both humoral and cell mediated immunity against leishmania donovani was demonstrated in 246 inhabitants. in a study of 14 patients with active visceral leishmaniasis, we found that antibodies appear early in infection and that they are then demonstrable for a limited period only. leishmanin positivity develops later and persists longer, but does not seem to be lifelong. the majority of the immunoreactive individuals were either sero- or leishmanin positive. this fin ...19957747298
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