Multiple choice Sand fly is a vector for: Leishmaniasis Malaria Dengue Chicken Guinea Reveal answer Fill a bubble to check yourself A Correct answer Explanation The sand fly is the primary vector for the protozoan parasite Leishmania, which causes Leishmaniasis. Malaria is spread by Anopheles mosquitoes, and Dengue/Chikungunya are spread by Aedes mosquitoes.