For being such a tiny insect, mosquitoes have a big impact on public health. Mosquitoes kill more people than any other animal on the planet through the diseases they spread. This includes dengue, West Nile virus, yellow fever, Zika, and chikungunya.
Every year on August 20, public health organizations observe World Mosquito Day. On this day we raise awareness of the dangers posed by mosquito-borne diseases and the ways people can protect themselves.
Malaria: The First Discovery
On August 20, 1897, a Before Ross’ discovery, there were few ways of controlling the spread of malaria. At the time, estimates are that half the world’s population was at significant risk from the disease. It had a 10 percent mortality rate among those infected.
Mosquitoes Still Pose a Threat
The battle against this deadly insect and the diseases it can spread continues. According to the World Mosquito Program, kill more than 1 million people and infect up to 700 million each year. That’s almost one in 10 people on the planet.
Dengue is the fastest-spreading mosquito-borne disease in the world. It shows no signs of slowing down. 2024 was the worst year on record for dengue cases. This year had more than 11 million cases reported globally in 80 countries.
In Virginia, West Nile virus is the most commonly reported locally acquired mosquito-borne disease. You can learn more about mosquito-borne diseases in Virginia and see on VDH’s .
Prevent Mosquito Bites
Reduce Mosquito Populations
Focus on reducing mosquito populations and eliminating their breeding grounds on your property.
- Eliminate standing water: Mosquitoes breed in standing water. Empty containers like buckets, tires, and flowerpots. Ensure proper drainage around your property.
- Maintain pools and water features: Keep pools properly chlorinated. Drain or cover water features to prevent mosquito breeding.
- Use mosquito dunks: These contain bacteria that kills mosquito larvae in standing water.
Cover Up
While at home or traveling, you can protect yourself with repellants and proper clothing.
- Use insect repellent: Apply EPA-registered repellents like DEET, picaridin, or oil of lemon eucalyptus to exposed skin and clothing following product label instructions.
- Wear protective clothing: Wear loose-fitting long-sleeved shirts and long pants.
- Consider permethrin-treated clothing: Permethrin is an insecticide that can be used to treat clothing and gear for added protection.
- Use mosquito netting: If you are sleeping outdoors or in areas with high mosquito activity, use mosquito netting – especially over beds and strollers.
Other Tips
- Repair screens: Ensure window and door screens are in good condition and free of holes to prevent mosquitoes from entering your home.
- Be aware of travel precautions: Take extra precautions if traveling to areas with mosquito-borne disease activity. Consult with a healthcare professional about necessary vaccines or medications.
Learn More
To learn more about mosquitoes and how to protect yourself, visit the VDH Mosquitoes Webpage.