'Only time will tell us what type of immunity you have,' said Joseph Fair, a virologist and NBC News science contributor.
There is currently no evidence that people who have recovered from COVID-19 are protected from a second infection, the World Health Organization warned Saturday as the worldwide death toll topped 200,000.
Most people who are infected with COVID-19 will develop an antibody response that will provide “some level of protection," it later clarified, but it does not yet know what that level is or how long the immunity will last. In the U.S., more than 53,000 people have died from the virus, with the number of confirmed cases nearing one million.
After the U.S. saw nationwide protests over stay-in-place orders, anti-lockdown protesters in Germany’s capital, Berlin, demonstrated Saturday against the coronavirus restrictions.
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