Genome sequencing for the current round of COVID-19 infections in Nanjing, Jiangsu province, has identified the culprit as the Delta strain of the virus, which was first detected in India, a senior health official said on Tuesday
Genome sequencing for the current round of COVID-19 infections in Nanjing, Jiangsu province, has identified the culprit as the Delta strain of the virus, which was first detected in India, a senior health official said on Tuesday