Within a few months of infection, an ulcer forms. After healing there is an asymptomatic phase for three to twenty years. At this time, the parasite causes oral and nasal lesions causing severe damage to the mucus membranes. Visceral Leishmaniasis causes the infected to have a fever, skin lesions, skin tumors, loss in weight, spleen and liver enlargement, and if left untreated, death.
Leishmania braziliensis
Leishmania major
Leishmania mexicana
Leishmania amazonensis
Leishmania donovani
Trypanosoma brucei
Trypanosoma evansi
Leishmania infantum