Wooded trail
Vector-Borne Disease
Vector-Borne Disease
Rocky Mountain Wood Tick on blade of grass. Mosquito and flea pictured.
(Centers for Disease Control and Prevention)
 
Mosquitoes, ticks, and fleas are called vectors when they spread germs. A person bitten by one of these vectors who gets sick could have a vector-borne disease.

Some vector-borne diseases have been around for thousands of years, while others are more recent discoveries. Some can develop into serious, life-threatening illnesses.

According to the Centers for Disease Control and Prevention (CDC), cases of vector-borne diseases have increased significantly since 2004, with more than 1 million cases reported between 2001 and 2023 in the United States.

Certain groups of people are at a higher risk for vector-borne diseases than others: 
  • Children
  • Older adults
  • Dog owners
  • Outdoor workers
  • Outdoor enthusiasts
  • People with weakened immune systems
Click here to read more about vector-borne diseases from the CDC.