New antibody tests can detect whether people have had the coronavirus after they recover, but scientists still aren't sure whether people can get reinfected

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• Scientists still don't know if people who have recovered from the coronavirus can contract it again.
• Experts say people who have been infected probably develop immunity, but it's not clear whether it weakens over time.
• New blood tests can tell if people have had the virus by detecting antibodies — which is crucial in determining whether people self-isolating can return to work.
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There are still many unknowns about the coronavirus, but an important, lingering question is whether or not people who have recovered can get reinfected. 

"We don't know very much," Matt Frieman, a researcher at the University of Maryland School of Medicine in Baltimore, told NPR. 

See the rest of the story at Business Insider

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See Also:

• More than a dozen researchers predicted how the US's coronavirus outbreak will end. They estimated nearly 200,000 people could die by the end of the year.
• More than 1,000 people in the US have died from the coronavirus — one chart shows how it's failing to 'flatten the curve'
• Spain, Europe's worst-hit country after Italy, says coronavirus tests it bought from China are failing to detect positive cases

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