Abstract
With the use of an indirect fluorescent antibody (IFA) test and freeze-dried antigens, circulating antibody titres of 1 in 100 or above to Leishmania tropica leptomonad forms were detected in 66·6% and 76· 2% of 18 patients with active and 21 patients with healed cutaneous leishmaniasis, respectively. Cross-reactivity was observed with L. donovani and Trypanosoma cruzi antigens. Five out of 15 patients with active pulmonary tuberculosis had antibodies to L. tropica major, suggesting a possible cross-reactivity between the two agents.
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