Principal Infectious Diseases carried by Harmful Insects

Infectious Diseases Transmitted by Mosquitoes Infectious Diseases Transmitted by Flies
Disease Origin of Infection Disease Origin of Infection
Dengue Hemorrhagic Fever Aedes aegypti, Aedes albopictus , Other
Transmitted by bites from mosquitoes carrying the Dengue Fever Virus (Genus flavivirus, 1-4 types). Transmission does not occur through direct infection from person to person, only through a mosquito carrier.
Pathogenic E. Coli Bacteria O-157 Housefly (Musca domestica)
Carried by houseflies contaminated with O-157. Infection occurs through eating food infected with E. coli O-157 and through drinking water from wells that has not undergone sterilization.
Malaria Anopheles Mosquito
“Malaria” is the general term for disease that infects through bites from mosquitoes carrying malarial protozoa. Malaria is classed into 4 varieties depending on the malarial plasmodium involved – tertian malaria, quartan malaria, tropical malaria, and ovale malaria.
Salmonella Bacterium Cockroaches, Flies
Frequently occurs after eating cream-filled pastry cakes, fried eggs and other foods.
West Nile Fever (West Nile Encephalitis) Culex pipiens, Aedes aegypti, Other
West Nile Virus is transmitted by bites from infected mosquitoes. There is usually no direct person to person transmission. In nature, West Nile Virus is maintained through a cycle of infection between birds and mosquitoes.
Dysentery Bacillus Cockroaches, Flies
Infects through consumption of food or water contaminated with the dysentery bacillus.
Yellow Fever   Polio  
Japanese Encephalitis   African Trypanosomiasis  
    African Trypanosomiasis ( Chagas Disease)  
    Visceral Leishmaniasis  
    Dermal Leishmaniasis  
    Mucocutaneous Leishmaniasis  


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