U.S. Faces Record Mosquito Activity and Cyclospora Outbreak Amid Heat and Humidity

A prolonged summer of high temperatures and humidity has created ideal breeding conditions for mosquitoes across much of the United States. States in the Southeast and Midwest, especially Texas, Florida, Louisiana, Georgia, the Carolinas, Kentucky and parts of the Midwest, are seeing expanded habitats and longer seasons, with Texas reporting more than 85 mosquito species. Experts advise eliminating standing water, using screens and repellents, and planting native deterrent species to reduce bites.

At the same time, the United States is experiencing its largest recorded cyclospora outbreak, with more than 11,500 suspected or confirmed cases since the start of summer. The parasite‑caused diarrheal illness has been linked to contaminated iceberg lettuce from Taylor Farms, which has been recalled, and investigators continue to monitor other produce. Most cases have occurred in the Midwest and Northeast, while Texas reports numbers consistent with its seasonal baseline. Health officials stress proper hydration and seeking treatment for severe cases.

Both the mosquito surge and the cyclospora spike underscore the health risks posed by hot, humid weather, prompting public‑health advisories and preventive measures nationwide.