As if it were not bad enough that illnesses from mosquito, tick, and flea bites tripled between 2004 and 2016, 9 new germs spread by mosquitoes and ticks were discovered or introduced into the US in the same 13 years.
According to the CDC’s first summary collectively examining data trends for all nationally notifiable diseases caused by the bite of an infected mosquito, tick, or flea, the most common tickborne diseases in 2016 were Lyme disease and ehrlichiosis/anaplasmosis. The most common mosquito-borne viruses were West Nile, dengue, and Zika.
The increase is due to many factors, the CDC says, but 1 issue is that mosquitoes and ticks are moving into new areas, putting more people at risk. The US is “not fully prepared” to meet the public health threat, the CDC warns: About 80% of vector control organizations lack critical prevention and control capacities. Reducing the spread of the diseases and responding effectively to outbreaks will require additional capacity at the state and local levels for tracking, diagnosing, and reporting cases.