While huge strides have been made in HIV care, the virus is still a global health concern.
Funding and political will can stem the tide of HIV, improve its treatment and stop AIDS.
Learn about these conditions, their causes and risk factors—and the three stages of infection.
The ambitious study was discontinued, so the decades-long search for a solution continues.
A new study suggests doxycycline can reduce STI risk, but there are resistance concerns.

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While huge strides have been made in HIV care, the virus is still a global health concern.