The virus has been spreading at a faster pace in China after the government relaxed controls in November and abruptly abandoned its Covid Zero policy in December, according to the study.
China is battling its biggest wave of coronavirus infections so far. This has hit the elderly hard but resulted in only a handful of reported deaths after the government redefined the criteria by which Covid-19 fatalities are counted. Here's a look at the current situation in the country
Despite a steady fall in infections that saw just 27 new cases reported on Sunday, authorities said the city’s more than 600,000 residents must stay home, with all non-essential businesses shut, until Friday.
On Monday, the Chinese capital reported 99 new cases were detected on May 22, up from 61 the previous day – the largest daily tally so far during a month-old outbreak that has consistently seen dozens of new infections every day.
State media said an additional 174,400 people had symptoms, like fever, that could be due to COVID-19, nearly a tenfold jump from the 18,000 such cases reported Friday.