Thread by @BogochIsaac, 1/Last week there were reports of #COVID19 reinfections in South Korea.“It is [...]

Isaac Bogoch

BogochIsaac

1/
Last week there were reports of #COVID19 reinfections in South Korea.

“It is highly unlikely that those who tested positive again [in RT-PCR tests] might have been infected again”

-Yoo Cheon-Kwon, Korea CDC https://tinyurl.com/yczdo48e ">https://tinyurl.com/yczdo48e&...

South Korean patients who test positive for ‘reactivated’ coronavirus are not infectious

Even though the virus these patients has low infectiousness, the phenomenon has implications for attempts to use antibodies to develop a vaccine.

https://tinyurl.com/yczdo48e

2/
It looks like these reports of "reinfection" were from PCR tests, which we know can stay positive for days/weeks (in some) after #COVID19 infection.

So likely not reinfection.

Still unanswered: To what extent of those who recover from infection are immune, and for how long?

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