The Amicron BF.7 mutant strain is the main strain of the current outbreak in Beijing.

What characteristics does it have in terms of infectivity and pathogenicity?

Can ordinary medical surgical masks still prevent it?

The time for entering public places to check negative nucleic acid certificates has been adjusted from 72 hours to 48 hours. Why?

Aiming at hot issues of public concern, the reporter interviewed Li Tongzeng, Chief Physician of Infectious Diseases Department of Beijing You'an Hospital and Medical Expert of Xiaotangshan Fangcang Hospital.

  Question: If the neighbor agrees, the positive can be isolated at home and not sent to the shelter.

Is this idea feasible now?

  Li Tongzeng: For the asymptomatic infected persons themselves, most of them are willing to observe at home.

However, as doctors, we have indeed seen clinically that some elderly people will develop severe cases or aggravate their underlying diseases after infection.

  Therefore, residents of the same community who have elderly, sick, or are about to take an exam or have important work to be done may hold different views on this.

If it can be done accurately, one policy per family, one policy per person is of course the best, but professionals need to evaluate the community environment, home ventilation and water conditions, etc. to ensure that the surroundings are safe.

The reality is that there is no reliable evaluation method, and many communities cannot do this. The strategy of centralized isolation is based on the reality.

  Beijing Daily Client | Reporter Sun Leqi