There are over 200 types of mosquitoes in the United States. Most of these are nuisance mosquitoes. However, some types of mosquitoes can spread viruses and parasites that make people sick through their bites. Mosquitoes can spread dengue, chikungunya, West Nile virus, yellow fever, Zika, and other diseases.

"Mosquitoes are not just annoying, they are a top public health threat," said Dr. Roberto Barrera, lead entomologist at CDC's Dengue Branch. "These tiny troublemakers are responsible for spreading viruses that affect millions of people. It's time to take action to stop these pests!"

Here's a closer look at the mosquitoes responsible for spreading dengue.

View Larger

DISTINGUISHING FEATURES:

Dark brown; white bands on the legs; white spots on the body, and stripes on the upper body that look like a lyre

PRIORS:

Spreading dengue, Zika, chikungunya, and yellow fever

LAST KNOWN WHEREABOUTS:

Southern and Southwestern U.S. states, Puerto Rico, tropical and subtropical areas of the world, countries in Africa and Asia, parts of southern Europe

View Larger

DISTINGUISHING FEATURES:

Black; white bands on the legs; white spots on the body

PRIORS:

Spreading dengue, Zika, chikungunya; because these mosquitoes feed on animals as well as people, they are less likely to spread these and other viruses than the Aedes aegypti

LAST KNOWN WHEREABOUTS:

Southern and Southwestern U.S. states, tropical, subtropical, and some temperate areas of the world, countries in Africa and Asia, parts of southern Europe - this mosquito can live at cooler temperatures than Aedes aegypti.

Protect yourself and your families from mosquito bites by

• Using EPA-registered insect repellent
• Wearing loose, long-sleeved shirts and pants
• Making sure screens are in good repair
• Removing standing water where mosquitoes lay eggs

Learn more about the current dengue outbreak and be sure to keep these unwanted guests out of your homes.