Discharged COVID-19 patients fall ill again
A Chinese study finds multiple recurrences of SARS-CoV-2 positivity
One in six patients with COVID-19 discharged from a Chinese hospital have retested positive to the virus, researchers have found in a study that further muddies the issue of immunity.
Their study shows that despite being under strict quarantine conditions, 69 out of 414 patients believed recovered from COVID-19 later tested positive — and 16 required readmission to hospital.
The joint Chinese-US study, published preprint without peer review, followed consecutive patients treated at a hospital in Shenzhen, China, between January