For centuries the tenacious bacterium that causes tuberculosis has eluded humanity's attempts to kill it quickly, but one researcher may have landed a better solution. Mycobacterium tuberculosis, meet Ying Zhang.
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Entomologist Rebekah Kent's tale of death and life at the end of malaria season
Our societal senior moment is on the horizon: By 2030, one in five Americans will be over 65. Now is the time to redefine aging and health.
>In southern Zambia, scientists hunt the parasite and the mosquito that make malaria a fact of life and a persistent cause of death
>Antiretroviral drugs can save lives, but can they solve Africa's AIDS epidemic?
>Africa is developing its greatest resource—its people—to face its greatest challenge
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