CDC Online Newsroom

Almost everyone in the world has been bitten by a mosquito. Although most kinds of mosquitoes are just nuisance mosquitoes, some kinds of mosquitoes spread viruses that can cause disease.

Cases triple; better tools needed to fight mosquitoes, ticks, and fleas

The number of illnesses from tick, mosquito, and flea bites has more than tripled in the US, with over 640,000 cases reported from 2004 through 2016.

The number of illnesses from tick, mosquito, and flea bites has more than tripled in the US, with over 640,000 cases reported from 2004 through 2016.

About 1 in 59 eight -year-old children in 11 communities across the United States were identified as having autism in 2014, according to a report published today in CDC's Morbidity and Mortality Weekly Report (MMWR) Surveillance Summary.

About 1 in 59 eight -year-old children in 11 communities across the United States were identified as having autism in 2014, according to a report published today in CDC's Morbidity and Mortality Weekly Report (MMWR) Surveillance Summary.

CDC's Tips From Former Smokers campaign resumes for 25 weeks on April 23, 2018.

CDC's Tips From Former Smokers campaign resumes for 25 weeks on April 23, 2018.

The U.S. Centers for Disease Control and Prevention (CDC) will hold its 67th Annual Epidemic Intelligence Service (EIS) Conference April 16-19, 2018 in Atlanta.

The U.S. Centers for Disease Control and Prevention (CDC) will hold its 67th Annual Epidemic Intelligence Service (EIS) Conference April 16-19, 2018 in Atlanta.