El método de cultivo "in vitro" como instrumento práctico en el diagnóstico y el aislamiento primário de Leishmania braziliensis braziliensis I. Observaciones de laboratório

We have compared differeni media and isolation procedures to cultivate Leishmania braziliensis braziliensis/rom hamster tissues. Wefmd that aspiration of the lesion using a 22 g needle and a five ml syringegives satisfactorv results, and is a convenient sampling method. Difco Blood agar is an efficient medium for isolation. Evans medium gave equal results while Schneiders and AR-103 medium were inferior. In Schneider's medium flagellate growth achieved 0.21 - 2.57 x 108 promastigotes/ml bv the fifth day 5-fluorocytosine added to the cultures to avoid fungal contamination does not inhibit the growth of L. b. brasiliensis.