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News From the Centers for Disease Control and Prevention
June 26, 2018

Insect Borne Disease Threat Grows

JAMA. 2018;319(24):2471. doi:10.1001/jama.2018.7441

The United States faces an increasing number of infections caused by mosquito, tick, and flea bites, according to a new CDC report.

Between 2004 and 2016, 642 602 cases of vector borne diseases were reported to the CDC’s National Notifiable Diseases Surveillance System. Tick-borne diseases accounted for more than 75% of the reports. In fact, the number of annual reports of tick-borne bacterial and protozoan diseases doubled from more than 22 000 in 2004 to more than 48 000 in 2016. Lyme disease accounts for 82% of those cases, but the actual number of Lyme disease cases is likely closer to 300 000 due to underreporting, according to the CDC.

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