Epidemiology
M. perstans is found in tropical Africa, central and eastern South America, Central America, and the Caribbean. The parasite is widespread in many parts of sub-Saharan Africa. Infections have been reported from 33 countries in this region. In certain locations, extremely high proportions of the inhabitants show signs of infection. It often occurs among poor populations living in rural villages. M. perstans is also found in the Americas in Venezuela, Trinidad, Guyana, Suriname, northern Argentina and Amazonia. This parasite does not occur in Asia. It also does not occur in the most northern and southern regions of Africa. A recent review of M. perstans in Africa states that about 114 million people are infected with this parasite in Africa today.
Read more about this topic: Mansonella Perstans