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Multiple vaccine doses could be necessary to protect from coronavirus, Bill Gates says

Microsoft co-founder Bill Gates said Wednesday that people could need multiple doses of a potential coronavirus vaccine to immunize themselves from the coronavirus. If necessary, the multiple doses could require more than 7 billion vaccinations to be administered worldwide.

"None of the vaccines at this point appear like they'll work with a single dose," Gates said. "That was the hope at the very beginning."

The billionaire philanthropist, who has donated $300 million towards the global effort to combat COVID-19 through the Bill & Melinda Gates Foundation, told "CBS Evening News" anchor and managing editor Norah O'Donnell that deploying a coronavirus vaccine will require a global effort.

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Coronavirus Drug and Treatment Tracker--New York Times

Below is an updated list of 19 of the most-talked-about treatments for the coronavirus. While some are accumulating evidence that they’re effective, most are still at early stages of research. We also included a warning about a few that are just bunk....

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Testing Backlogs May Cloud the True Spread of the Coronavirus

Public health experts say delays in testing continue to hinder attempts to track and contain the spread of disease.

As demand for coronavirus testing surges around the nation, laboratories that process samples are again experiencing backlogs that have left anxious patients and their doctors waiting days — sometimes a week or more — for results.

At the city and state levels, testing delays could mask persistent rises in case numbers and could cloud ways to combat the coronavirus, as health officials continue to find themselves one step behind the virus’s rapid and often silent spread, experts said.

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