Reconstructing Zika's spread

The urgent threat from Zika virus, which dominated headlines in early 2016, has passed. But research into how Zika and other mosquito-borne infections spread and cause epidemics is still very active. Researchers now report new details of how Zika emerged from Brazil and spread throughout Mexico and Central America, with evidence that some locations had […]

Tick bite protection: New CDC study adds to the promise of permethrin-treated clothing

The case for permethrin-treated clothing to prevent tick bites keeps getting stronger. In new experiments, clothing treated with an insecticide known as permethrin had strong toxic effects on three primary species of ticks known to spread disease-causing pathogens in the United States. Exposure to permethrin interfered with the ticks’ ability to move properly, making them […]