Scientists Unleash Millions of Mosquitoes to Block Disease
In an ambitious global experiment, scientists are unleashing millions of engineered mosquitoes carrying virus-blocking bacteria upon dense urban landscapes as an ecological solution to infectious diseases transmitted by the insects’ bites. Initial trials suppressing dengue spread by up to 80 percent bolster hopes of harnessing evolution to vanquish humankind’s most lethal animal foe, responsible for nearly a million annual deaths. But realizing lasting impacts across continents presents daunting financial and logistical hurdles. At dedicated factories in Colombia, technicians mass-produce Aedes aegypti mosquitoes infected with the Wolbachia parasite, which largely prevents transmission of viruses like dengue. The ambitious aim: completely replace
November 21, 2023