BALTIMORE (WJZ) — The University of Maryland School of Medicine doctor who helped co-discover the virus that causes AIDS is working to figure out if an old polio vaccine could help protect against COVID-19.

Scientists think this could help boost the immune system until there’s a COVID-19 vaccine.

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Doctor Robert Gallo and the Baltimore-based Global Virus Network hope to begin studies on the oral polio vaccine soon, but they’re waiting for federal approval before trials can begin.

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For the latest information on coronavirus go to the Maryland Health Department’s website or call 211. You can find all of WJZ’s coverage on coronavirus in Maryland here.