Risk factors of visceral leishmaniasis in the world:a review
Visceral leishmaniasis is a zoonotic parasitic disease caused by viscerotropic Leishmania species and transmitted by bites of infected phlebotomine sandflies,which is predominantly prevalent in the Indian subcontinent,eastern Africa and South America.Currently,visceral leishmaniasis is the second most fatal parasitic disease in the world.Because of climate chang-es,urban development and individual conditions,there are changes in the density of visceral leishmaniasis vector sandflies and the likelihood of contact with humans,resulting in a visceral leishmaniasis transmission risk.The review summarizes natural,so-cial and biological factors affecting the transmission of visceral leishmaniasis,so as to provide insights into formulation of target-ed control measures for visceral leishmaniasis.
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