11. Several different polymerase chain reaction tests are available for the detection of " Leishmania " 12. Cutaneous leishmaniasis in North Africa; " Leishmania major " infected areas are in blue 13. He also conducted basic research on the characterization of Trypanosoma and Leishmania parasites grown on media. 14. Most species of " Leishmania " are capable of infecting humans and causing cutaneous leishmaniasis. 15. There are currently only two species in this genus including the type species Leishmania RNA virus 1. 16. Leishmaniasis, a disease caused by several species of the genus Leishmania , is transmitted by various sandflies. 17. The disease is transmitted via the bites of sandflies, which inject the parasite leishmania donovani into the body. 18. Guerra's research focuses on the pathogenesis and immunology of bacterial diseases including brucellosis, leishmania and tuberculosis. 19. "Leishmania mexicana " is an obligate intracellular protozoan parasite that causes the cutaneous form of leishmaniasis. 20. For instance, antimonials neutralize the Leishmania parasite s antioxidant defence system, allowing the patient to clear the infection.