https://www.independent.co.uk/news/world/americas/coronavirus-immunity-testing-certificates-dr-fauci-covid19-antibodies-… 
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RocketSurgeon22
I've been reading that many people have the virus antibodies. They suggested people may have had the virus back in December. I had the worst flu virus of my life this year. All the symptoms matched to Covid-19. All of them. I wonder if many of us had it already and did not know?
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IEatRawEggs replied to
RocketSurgeon22 :
Some studies indicate tons of people have it and show 0 symptoms.
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But wait, wasn't it discovered in South Korea that more than 100 people who already went through COVID disease got tested positive again?
No one is yet sure if virus in their body simply got reactivated, or was it contracted again from some other external source.