Elizabeth Weise, USA TODAY Published 4:11 p.m. ET May 8, 2020 | Updated 4:17 p.m. ET May 8, 2020CLOSE The secret to fighting COVID-19 could be in recovered patients. Here’s how antibodies could lead to a treatment for those fighting coronavirus. USA TODAYIt doesn’t appear people who have had a confirmed case of COVID-19 can quickly become reinfected with the disease, a helpful finding for those worried that even once recovered they may not be safe.But it remains unknown whether there’s any real long-term or even short-term protection for those who’ve been sick.Concern was initially raised following reports out of South Korea that some people were becoming reinfected with SARS-CoV-2, the virus that causes COVID-19.The country’s Centers for Disease Control and Prevention reported more than 300 such cases. South Korea has one of the world’s most extensive COVID-19 testing programs, so its data is considered strong. South Korean researchers now think they were seeing false positives, where the tests detected old particles of virus in patients no longer causing disease, Reuters reported.“The South Koreans tried to grow the viruses (from those particles) and they didn’t grow,” said Dr. Ania Wajnberg, an internist at Mount Sinai Hospital in New York City who is medical director of its Serum


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