The chances of China facing a major Covid-19 rebound in the coming next two or three months is unlikely as 80 per cent of the country's population has already been infected by the virus, said a senior government scientist on Saturday. The pandemic may spread widely and increase infections in a few areas due to people's mass movement during the country's ongoing Lunar New Year holiday season, however, China is less likely to face a second Covid wave in the near term, claimed China Centre for Disease Control and Prevention's chief epidemiologist Wu Zunyou on the Weibo social media platform.