The jars of larvae in stagnant water and thick clouds of mosquitoes at a Colombian lab may seem like the stuff of nightmares. They are in fact crucial to a project to fight the spread of dengue fever.
For nearly ten years, the World Mosquito Program (WMP) has been replacing local populations of Aedes aegypti mosquitoes with biologically modified insects to prevent the spread of a virus that has killed over 4,500 in Latin America and the Caribbean so far this year.
