Global Malaria News
New drug-resistant strains of the parasite that causes malaria tend to evolve in regions with lower malaria risk; in areas with high transmission rates, they get outcompeted by the more common, drug-sensitive strains inside the human host. In high-transmission settings, it takes a long time for drug-resistant strains to take hold, but once they do, they can spread rapidly, according to a new study.
Nearly 700 million people suffer from mosquito-borne diseases -- such as malaria, West Nile, Zika and dengue fever -- each year, resulting in more than 1 million deaths. Today, researchers report a new class of mosquito repellents based on naturally occurring compounds that are effective in repelling the bugs, including those that are resistant to pyrethroid insecticides and repellents.