Easing curbs in ‘Covid-zero regions’ could cause 2 million deaths in a year: China study

The researchers used studies from Chile and Britain to calculate the ‘baseline efficacy’ of current vaccines - CoronaVac in the case of Chile and the Pfizer and Oxford/AstraZeneca shots in Britain.

Restoring normal population mobility to “Covid-zero regions” like China will cause some 2 million deaths in a year and the key to controlling the virus is developing vaccines that are better at preventing infection, Chinese researchers said.