Climate change and the rapid evolution of the insect have helped drive up malaria deaths and brought dengue and other mosquito-borne viruses to places that never had to worry about them.
Author: Stephanie Nolen and Malin Fezehai
Global Push to Treat H.I.V. Leaves Children Behind
Sub-Saharan Africa has made steady progress in delivering lifesaving medication to adults, but young patients are harder to reach and 100,000 are dying of AIDS each year