Cases rise in Shulan, near the Russian border, and in Wuhan, where stringent lockdown measures had been eased in recent weeks
An untraced coronavirus outbreak in a Chinese city near the Russian border and a spate of new cases in Wuhan has prompted fears of a fresh wave of infections in China.
On Sunday, Chinese authorities reclassified Shulan, a city near the Russian and North Korean borders, as high risk, after a cluster of cases connected to a woman with no known history of travel or exposure to the virus.
