China News Service, March 15 (Zhang Yilin) ​​On the 15th, the Joint Prevention and Control Mechanism of the State Council held a press conference to introduce the situation of epidemic prevention and control and vaccination.

At the meeting, Mi Feng, spokesperson of the National Health and Health Commission, introduced that recently, local clustered epidemics have occurred in many places and points in my country, mainly the mutant strain of Omicron, which spreads quickly and is highly concealed.

Since March, the frequency of the epidemic has increased significantly, the number of infected people has increased rapidly, and the scope of infection has continued to expand, affecting 28 provinces.

The epidemic prevention and control is more difficult, and the prevention and control situation is severe and complicated.