By Emily Feng
In the latest wave, the highly transmissible omicron variant has moved more quickly than contact tracing allows.
(Image credit: STR/AFP via Getty Images)
Source: A surge in COVID-19 spurs new lockdowns in China’s cities
By Emily Feng
In the latest wave, the highly transmissible omicron variant has moved more quickly than contact tracing allows.
(Image credit: STR/AFP via Getty Images)
Source: A surge in COVID-19 spurs new lockdowns in China’s cities