Division of Vector-Borne Diseases (DVBD)

About the Division of Vector-Borne Diseases

Who we are

The Division of Vector-Borne Diseases (DVBD) is a national and international leader in researching, preventing, and controlling viruses and bacteria spread by vectors like mosquitoes, ticks, and fleas. Our staff includes entomologists, epidemiologists, molecular biologists, laboratorians, microbiologists, physicians, veterinarians, virologists, and zoologists.

What are vector-borne diseases?

Almost everyone has been bitten by a mosquito, tick, or flea. Vectors are mosquitoes, ticks, and fleas that spread pathogens. A person who gets bitten by a vector and gets sick has a vector-borne disease. Some vector-borne diseases, like plague, have been around for thousands of years. Others, like Heartland virus disease and Bourbon virus disease, have been discovered recently.

Photograph depicting a female Aedes aegypti mosquito, which is the primary vector for the spread of Dengue fever.

Mosquitoes spread Zika to people

bourbon virus specimen; What is Bourbon Virus? a newly discovered thogotovirus

Bourbon virus

A magnified left lateral view of a female Oriental rat flea, Xenopsylla cheopis, a well-known bubonic plague vector.

Fleas spread plague to people

Kiersten Kugeler I am CDC video screenshot

Meet Staff at DVBD

Vital Signs: Illnesses on the rise from mosquito, tick, and flea bites
Yellow Fever and Travel