title: A new Leishmania infantum enzymatic variant, agent of an urban visceral case unresponsive to drugs.
mesh_terms: D000818:Animals; D004351:Drug Resistance; D006801:Humans; D007223:Infant; D007893:Leishmania donovani / Q000201:enzymology*; D007898:Leishmaniasis, Visceral / Q000188:drug therapy* / Q000201:enzymology; D008297:Male