A goat grazed outside a small building in a remote part of southern Zambia. Behind the building’s door waited a lab full of mosquitos, and he would be their dinner. 

Inside the warm, humid lab, called an insectary, mosquito larvae squirmed in trays of water. Hundreds of grown mosquitos buzzed in mesh boxes. A series of doors secured them from the outside world.

The lab belongs to Macha Research Trust (MRT). It sits on the grounds of a mission hospital and has played a central role in dramatically reducing malaria in this part of Africa. But in the past few