Symptoms and Understanding of Visceral Leishmaniasis Visceral Leishmaniasis: A Zoonotic Infection Visceral leishmaniasis, also known as kala-azar, is a zoonotic disease caused by the dangerous pathogen Leishmania. The clinical manifestations of this infection are diverse and can vary from person to person. Here are some common symptoms individuals may experience: Fever: Individuals with kala-azar often present with fever early in the course of the disease, typically with temperatures ranging between 38-39°C, along with chills and other related symptoms. Fatigue: People suffering from kala-azar frequently report feeling weak throughout the body, experiencing a lack of energy, and feeling generally exhausted. Joint... Learn more