Just when we thought the worst was over, the sudden surge in COVID-19 cases in many parts of the world including China, South Korea, Hong Kong and certain European countries has worried experts around the world. Recently, China reported its first coronavirus-related deaths in a year, even when the country is under a stringent lockdown.

from Times of India https://timesofindia.indiatimes.com/life-style/health-fitness/health-news/coronavirus-reasons-why-covid-19-cases-are-rising-around-the-world-as-per-the-who/photostory/90372728.cms