What discovery of 'new' mosquito means and what you should do now

Anopheles stephensi transmits Plasmodium vivax - one of five plasmodium parasites that cause malaria. [iStockphoto]

At one o'clock on the morning of February 7, Hellen Robai woke up with bouts of diarrhoea and vomiting.

"Kutapika na kuhara mpaka nikaishiwa na nguvu (experiencing vomiting and diarrhoea to the point of feeling weak)," she says.