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Vector Borne Diseases

MMWR Vital Signs Trends in Reported Vector borne Disease Cases - United States and Territories, 2004–2016 May 4, 2018

  • Nearly 650,000 cases of vector borne disease were reported. Most instances of vector-borne diseases go unreported
  • Tick Borne
    • Reported tickborne disease cases doubled
    • Lyme disease accounted for 82% of all reported tickborne disease.
    • The combined incidence of reported anaplasmosis, ehrlichiosis and spotted fever rose annually.
    • Babesiosis, a tickborne parasitic infection contributed to the rise.
    • Tularemia and ehrlichiosis are geographically widespread but more prevalent in the central United States.
  • Mosquito Borne
    • WNV was the most commonly transmitted mosquito borne disease in the continental United States. Its most notable epidemic occurred in 2012, especially in Texas.   
    • Epidemics of dengue, chikungunya, and Zika viruses were mostly confined to the U.S. territories.
    • Limited transmission of dengue occurred in Florida, Hawaii, and Texas
    • Human cases of Chikungunya and Zika occurred in Texas and Florida.
  • Other Vectors
    • Endemic plague, a flea borne disease in the rural southwestern U.S. had fewer than 17 cases annually

Links to Other Sources

Tick-Borne Diseases

Mosquito-Borne Diseases

Other Resources