Classical and Molecular Taxonomy, DNA barcoding. Natural and experimental infection with Leishmania species in sandflies. Molecular detection of Leishmania DNA from sand flies and blood samples. Molecular Identification of blood meals and plant meals in phlebotomine sandflies. Xenodiagnosis of Leishmaniasis canine. Isolation, culture, and genotipification of Leishmania spp., Trypanosoma cruzi, T. rangeli from vectors and host vertebrates. Molecular Diagnostic of SARS'Cov-2.