Health authorities in northern China's port city of Tianjin have detected the first case of the Omicron coronavirus variant, potentially challenging the country's strict zero-COVID approach.
Health authorities in northern China's port city of Tianjin have detected the first case of the Omicron coronavirus variant, potentially challenging the country's strict zero-COVID approach.
Health authorities in northern China's port city of Tianjin have detected the first case of the Omicron coronavirus variant, potentially challenging the country's strict zero-COVID approach.