A mosquito repellent made of sour milk helps prevent malaria

Kisaakye checks on the solids formed after fermenting sour milk, which are being heated in an oven for further processing. — dpa

In a backyard behind a small office building in the outskirts of Kampala, Uganda, Jovia Kisaakye is checking buckets of fermenting milk.

Kisaakye, 20, is an entrepreneur and feels content as she lifts a lid and breathes in the pungent, sour aroma.