Figures prior to 2016 were taken from a different CDC publication and can be found .
The sharp increase in the number of mosquito-borne diseases seen in 2016 is due to the inclusion of the number of Zika virus cases, which were not notifiable in previous years.
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Mosquito-borne disease cases reported in the U.S. 2004-2018
This graph shows the total number of mosquito-borne disease cases reported in the U.S. from 2004 to 2018. In the year 2004, there were 4,858 reported mosquito-borne disease cases, while there were 5,847 such cases in 2018.
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CDC, & MMWR. (May 15, 2020). Number of mosquito-borne disease cases reported in the U.S. from 2004 to 2018 [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 26, 2026, from /statistics/856988/reported-mosquito-borne-disease-cases-total-number/
CDC, und MMWR. "Number of mosquito-borne disease cases reported in the U.S. from 2004 to 2018." Chart. May 15, 2020. ÌÇÐÄÆÆ½â°æ. Accessed July 26, 2026. /statistics/856988/reported-mosquito-borne-disease-cases-total-number/
CDC, MMWR. (2020). Number of mosquito-borne disease cases reported in the U.S. from 2004 to 2018. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 26, 2026. /statistics/856988/reported-mosquito-borne-disease-cases-total-number/
CDC, and MMWR. "Number of Mosquito-borne Disease Cases Reported in The U.S. from 2004 to 2018." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 15 May 2020, /statistics/856988/reported-mosquito-borne-disease-cases-total-number/
CDC & MMWR, Number of mosquito-borne disease cases reported in the U.S. from 2004 to 2018 ÌÇÐÄÆÆ½â°æ, /statistics/856988/reported-mosquito-borne-disease-cases-total-number/ (last visited July 26, 2026)
Number of mosquito-borne disease cases reported in the U.S. from 2004 to 2018 [Graph], CDC, & MMWR, May 15, 2020. [Online]. Available: /statistics/856988/reported-mosquito-borne-disease-cases-total-number/