Anopheles stephensi is spreading across Africa, breeding in city water tanks. A Djibouti study confirms it carries malaria parasites as far west as Ghana.

A fast-spreading invasive mosquito is raising alarm across Africa, as scientists warn it could fuel a resurgence of malaria in major cities.

Anopheles stephensi is spreading across Africa, breeding in city water tanks. A Djibouti study confirms it carries malaria parasites as far west as Ghana.