China’s Controversial Quarantine Measures Worked, Prominent Epidemiologist Argues

China’s controversial quarantine measures limited the size of the country’s Covid-19 outbreak and should be kept in place until late April, according to a study by a prominent Chinese epidemiologist.

The study, led by Zhong Nanshan, who has spearheaded China’s effort against Covid-19, was published last month in China’s Journal of Thoracic Disease, of which he is editor-in-chief. It defended various measures taken by China since late January to control the spread of the virus, including citywide lockdowns, forced quarantines and shutdowns of public transportation.