An HIV-fighting strategy might help against COVID-19

Though many people are pinning their hopes on a COVID-19 vaccine, another option is available: preventive treatment. At a Senate hearing this week, Anthony Fauci noted that a vaccine — which is probably months or years away — isn’t the only way to protect someone from a life-threatening virus.

These treatments could protect people against infection for a few weeks or months, said Fauci, the director of the National Institute of Allergy and Infectious Diseases. While most ongoing research studies are focused on finding treatments for people who are already sick with COVID-19, some researchers are looking to see if they can stop people who are at high risk from getting sick in the first place.

It’s a proven strategy: preventive drugs...

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