Clinical disease in humans:
In immunocompetent adults, the leishmaniasis is usually (90%)
self-limiting, but in children and immunocompromised adults,
the disease can be devastating. Hence, visceral leishmaniasis
has risen in importance since the recognition of AIDS.
- In children and immunocompromised patients, the disease presents
with:
- fever
- hepatosplenomegaly
- lymphadenopathy
- thrombocytopenia
- progressive emaciation
- If left untreated, fulminant visceral leishmaniasis is fatal.
- Persons with AIDS may actually replicate enough of the organism
to serve as a reservoir for human-sandfly-human transmission.