History and Geographic Distribution of Leishmaniasis Leishmaniasis is caused by protozoan parasites of the genus Leishmania. The disease has been known since ancient times and is endemic in 98 countries across the world. The disease is prevalent predominantly in tropical and sub-tropical parts of the world. Key regions include parts of South America, East Africa, the Mediterranean,... https://hallbook.com.br/blogs/423050/The-Silent-Killer-Leishmaniasis-Treatment-Explained