Behind a dimly lit bar in Malawi's capital, Ben Manda rubbed his tired eyes and poured a customer a drink. He had been working for 36 hours straight, packing in back-to-back shifts to feed his ...

As clouds gather and humidity rises across west Africa, whose annual rains bring an uptick of deadly, malaria-carrying mosquitoes, Musa Adamu Ibrahim, a nurse, is sitting at home, unemployed.