Diseases, Conditions, Syndromes

How dangerous is the Delta variant? Here's what the science says

Breakthrough infections. Increased transmission. New mask recommendations and mandates. The Delta variant is fueling COVID-19 cases across the U.S., and raising questions about what this all means for the course of the pandemic.

Medical research

Faster test results mean better outcomes for HIV patients

Over the last 15 years, many African nations have made major strides towards enabling millions of HIV-positive people to access HIV antiretroviral therapy. This has helped to treat individual patients and maximize their health, ...

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