Coronavirus: China's new outbreak shows signs the Covid-19 could be changing

Patients in northeast region of Jilin, Heilongjiang appear to carry the coronavirus for a longer period of time and take longer to test negative, suggesting that COVID-19 may be changing in unknown ways and complicating efforts to stamp it out

from Livemint - News https://ift.tt/2WO9mDE
https://ift.tt/eA8V8J