The virus is "super long-term lurking"! Another case is found to be positive after being released from isolation. Will the quarantine period be extended?
Singapore changed its signing and flew to Hangzhou three days later, and he suffered a fever. He was struggling to fight the new coronavirus with ECMO. He was once endangered and was discharged from the hospital.
More than 200 people in two hospitals in the United States were diagnosed with the new coronavirus: most of them have been vaccinated and infected with the Delta mutant strain