Nothing about this virus is simple

See: South Korea reports recovered coronavirus patients testing positive again
By Josh Smith and Sangmi Cha,Reuters Apr 10, 2020 on Yahoo News

South Korean officials on Friday reported 91 patients thought cleared of the new coronavirus had tested positive again…Nearly 7,000 South Koreans have been reported as recovered from COVID-19, the disease caused by the new coronavirus.

“The number will only increase, 91 is just the beginning now,” said Kim Woo-joo, professor of infectious diseases at Korea University Guro Hospital.

The KCDC’s Jeong raised the possibility that rather than patients being re-infected, the virus may have been “reactivated”…

False test results could also be at fault, other experts said, or remnants of the virus could still be in patients’ systems but not be infectious or of danger to the host or others.

“There are different interpretations and many variables,” said Jung Ki-suck, professor of pulmonary medicine at Hallym University Sacred Heart Hospital.

“The government needs to come up with responses for each of these variables”.

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