Isolated cases continue to emerge

China's COVID-19 prevention and control work has achieved success in its first phase, but phase two will last for a year or two and possibly even longer, based on the current situation, a senior expert said on Saturday.

Zeng Guang, chief epidemiologist at the Chinese Center for Disease Control and Prevention, said at a symposium that outbreaks have recently occurred in many places in China.

"If it were to continue like this, it would be an important public health issue that needs more attention," he said.