Figure 5.

Lutzomyia longipalpis infected with either A, promastigotes or B, axenic amastigotes of Leishmania infantum chagasi. Samples of 12 sandflies were prepared for morphologic analyses and at least 300 parasites were analyzed in each dissected midgut. Data represent the geometric mean of flies analyzed from two independent experiments. The data set represents the analysis of approximately 30,000 individual parasites. Different forms are all displayed at the same magnification. Error bars indicate mean ± SD.