The epidemic situation is severe and complex, so what is the importance of doing nucleic acid as required?

Some citizens have some safety concerns about queuing up to do nucleic acid. Is it safe to do nucleic acid on a regular basis?

Winter is coming, what should be paid attention to in nucleic acid testing?

The reporter interviewed Wang Quanyi, deputy director and chief expert of the Beijing Center for Disease Control and Prevention.

  1. The current epidemic situation in this city is severe and complicated. What is the importance of performing nucleic acid testing as required?

  Wang Quanyi: There are many asymptomatic infections and mild symptoms of new coronary pneumonia, and the clinical manifestations are not specific. It is difficult to diagnose new coronary pneumonia based on symptoms and signs.

Nucleic acid detection has high sensitivity and specificity, is economical and fast, and is the "gold standard" for laboratory diagnosis of new coronary pneumonia virus infection.

  Occupational exposure risks exist for port staff, medical staff at fever clinics, staff at centralized isolation points and other occupational groups. Personnel in key institutions such as nursing homes and construction sites are likely to cause transmission after infection. These occupational groups and personnel in key institutions should follow the prescribed frequency Carry out nucleic acid testing, detect cases as soon as possible, and take timely measures to control the spread.

  When a case of new coronary pneumonia occurs in a community, building, or unit, it is necessary to complete the nucleic acid test of all employees in the shortest possible time, and find other infected persons as soon as possible.

The follow-up testing frequency should also be determined according to the risk assessment, so as to further discover infected persons who are already in the incubation period and control the epidemic as soon as possible.

  Residents in high-risk areas have a higher risk of infection. Nucleic acid testing and antigen testing should be carried out in accordance with the prescribed frequency, so that positive people can be found as soon as possible to reduce the risk of reoccurrence of co-residents.

Residents in high-risk areas should strictly implement personal protection during the nucleic acid test, participate in the nucleic acid test in an orderly manner in different time zones, and wear N95 or KN95 medical protective masks in a standard manner.

  When community transmission occurs, there are hidden infected people in the society. These people can spread the virus as the source of infection, but they are not easy to be identified.

According to the requirements of the ninth edition of the prevention and control plan, "after the outbreak, after the investigation and judgment of the epidemic, the transmission chain is unclear, there are many risk places and risk personnel, and the mobility of risk personnel is large. One nucleic acid test for all staff. After 3 consecutive nucleic acid tests without socially infected persons, another nucleic acid test for all staff will be carried out at an interval of 3 days. Those without socially infected people can stop the nucleic acid test of all staff.” Carry out nucleic acid testing for all personnel in a certain area Detection can identify potential infected persons, realize early detection, early reporting, early isolation, early treatment, and block the spread of the virus.

  2. Winter is coming, and what should be paid attention to when residents conduct nucleic acid testing in this season?

  Wang Quanyi: The outdoor temperature is relatively low in winter. Before going out, you should check the outdoor temperature and wear more clothes to avoid catching cold.

If you are doing nucleic acid testing near your work or home, check the queues at the nucleic acid testing sites in advance, and try to avoid peak queues if time permits.

Wear a mask before going out. The elderly and infirm may consider wearing an N95 mask.

Be sure to keep a distance of two meters when queuing.

Line up in a straight line, don't line up in a straight line.

When scanning the code and registering, do not touch the nucleic acid testing table, and do not put your mobile phone or ID card on the table.

Do not step forward immediately after the person in front finishes sampling, wait until the person in front leaves and the medical staff completes hand disinfection and takes out a new cotton swab before stepping forward.

Only take off the mask for a short time during sampling, hold your breath, and put on the mask immediately after sampling.

Do not stay at the sampling site after sampling, and wash your hands after returning home.

  Nucleic acid testing is not a social place, please do not get together and chat before, during and after sampling.

Especially for nucleic acid testing organized by communities, villages or units, there are many colleagues and neighbors. Do not gather to chat, do not eat snacks, wear a mask except when sampling, and keep a distance of two meters.

  3. Some citizens have some safety concerns about queuing up to do nucleic acid.

Is it safe to do nucleic acid routinely?

  Wang Quanyi: The risk of participating in normal nucleic acid testing is low, and nucleic acid testing itself is safe.

  However, nucleic acid testing must be done: close contacts should not participate in normal nucleic acid testing in society; residents in high-risk areas should not participate in normal nucleic acid testing in society, and high-risk areas should do a good job in organizing nucleic acid testing. The principles of time-sharing, batching, and orderly conduct nucleic acid testing under the condition of good protection; nucleic acid testing sites must do their best to organize and manage work, maintain good order, and maintain a safe distance of two meters; When queuing up for testing, you must wear a mask, keep a distance, and do not gather or eat snacks.

This way we can minimize the risk.