PPOX and parasitic infectious disease: They demonstrated that hemocelic injection of short T. rangeli epimastigotes in R. prolixus that were previously fed with blood containing WEB 2086 [a strong platelet-activating factor (2-acetyl-1-hexadecyl-sn-glycero-3-phosphocholine (PAF) antagonist] resulted in reduced hemocyte microaggregation, attenuated PPO activation in the hemolymph as well as increased the parasitemia and insect mortality.