A news-stand vendor, wearing a mask to protect against the coronavirus, sits near QR codes for Alipay and WeChat, two popular online payment system in Beijing, China on Tuesday, July 21, 2020. AP
A news-stand vendor, wearing a mask to protect against the coronavirus, sits near QR codes for Alipay and WeChat, two popular online payment system in Beijing, China on Tuesday, July 21, 2020. AP
Hong Kong researchers report first documented coronavirus re-infection
Findings indicate disease, which has killed almost 820,000 people worldwide, may continue to spread
