As mosquitoes buzzed about on her veranda one recent evening, Maureen Coetzee didn't reach for bug spray or a swatter. She dashed inside, grabbed a device resembling a drinking straw and sucked four mosquitoes into a specimen jar.
She quickly identified them as Aedes aegypti, the villain in the Zika crisis a continent away.
The next day, in her laboratory at the National Institute for Communicable Diseases, Coetzee peered at her new captives as they squatted in their containers.
To her delight, one had laid eggs, meaning she could breed them.
Coetzee has devoted her life to understanding mosquitoes — in order to kill them.