A chronic, often deadly infection occurring mainly in Asia, due to the protozoan parasite (Leishmania donovani) and characterized by irregular fever, enlargement associated with spleen and liver, and emaciation.
‘The black sickness’; a fever of India noted by an intermittent or remittent stage and a stage of continued fever, with progressive anemia, prostration, and dropsy.
How would you define kala-azar?