Urgent care provider CityMD has acknowledged that it mistakenly told 15,000 people in New York and New Jersey who tested positive for coronavirus antibodies that they're immune to the virus.
Public health officials have said they don't yet know whether antibodies give people immunity to a reinfection of Covid-19. People who logged in to their patient portal to retrieve their results online saw the inaccurate statement, which was attributed to "an editing error" that has since been corrected, spokesman Matt Gove told CNBC.
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