In a few cases, patients again tested positive for the virus after they were no longer ill. But little is known about the virus, and it’s possible that testing flaws may be to blame.
Published Feb 29, 2020 in The New York Times
In a few cases, patients again tested positive for the virus after they were no longer ill. But little is known about the virus, and it’s possible that testing flaws may be to blame.
Published Feb 29, 2020 in The New York Times