The new crown virus is very "cunning" and the three -voltage day goes out and you need to wear a mask

Zhoukou Daily · Zhou Dao client reporter Wang Ke

Recently, there are many domestic epidemics in China. Among them, in Xi'an, Beijing, and Shanghai Xinfa epidemic, the virus gene sequencing of the infected person has pointed to the more communication Omikon BA.2 and BA.5 mutant strains. Faced with the "cunning" and "changeable" new crown virus, Jiang Wen, chief of the Infectious Disease Disease Section of Zhoukou City Disease Control Center, said that the public needs to strengthen their vigilance, the weather is hot, and we must wear a mask scientifically.

Mutations are hidden and contagious

It is understood that the BA.2 and BA.5 mutant strains are the evolutionary branches of the Omikon virus. Both of them are more contagious. Among them, BA.2 mutant strains are contagious than the original strain BA. 1 Infectiously increased by 60%, and BA.5 infectiousness increased by at least 20%to 30%compared with BA.2. At present, BA.5 has replaced BA.2 to become the main poison in the world. The two are more hidden, and patients are mostly manifested as asymptomatic or mild infections. The main manifestations are the symptoms of upper respiratory tract infections such as runny nose, sneezing, sore throat, dry cough, etc. It is found that it is often spread for a few days when it is discovered, and it is easy to cause a local aggregate epidemic.

Jiang Wen told reporters that BA.2 and BA.5 mutations do not affect the sensitivity and specificity of my country's existing nucleic acid test agents. The two mutant plants have a certain impact on the protection of the new crown vaccine in my country, but if the inoculation is enhanced, it can still effectively reduce the patient's severe disease and mortality rate, which is especially important for the elderly.

Wearing a mask can reduce the risk of infection

The main transmission pathway of the new coronal virus variants is through the respiratory tract droplets and close contact. In a relatively closed environment, it is transmitted by gas solidarity. It may also cause infection after exposing items contaminated by the virus. Jiang Wen said that masks can reduce the risk of new coronary virus infection. It can not only prevent patients from spraying droplets, reduce the amount of droplets and jet speed, but also block the virus -containing droplet core to prevent the wearer from inhaling.

Sanfutian wearing a mask is particular

Currently, it is in Sanfu, and the weather is hot. Wearing a mask is stuffy and hot in such high temperature weather. After wearing it, the mask was soaked by sweat. In the face of this situation, how to wear a mask correctly?

Jiang Wen told reporters that as long as we pay attention to the following points in the summer, you can prevent the virus or drive away the humid and dullness of the face.

The first is to choose a lightweight mask. Generally, the general citizens are recommended not to choose a mask with poor breathability such as N95, and wear a medical mask or medical surgical mask at one time.

The second is to prepare a few more masks. It is recommended to change it every 1 to 2 hours in summer. Each mask has a total of not more than 8 hours. Once the mask is soaked by sweat, it must be replaced in time.

The third is the solution of sweating. If there are not many face sweat, you can use paper towels directly. If the mask is soaked by sweat, it must be replaced, otherwise the protection effect will be greatly reduced and cannot effectively prevent the new coronal virus.

Jiang Wen said that the current outbreak of the province's residents, Zhengzhou, Pingdingshan, Nanyang and other places, and the pressure of foreign defense input in our city is huge. Here I suggest that everyone should wear masks in public places, go out for meals, and cooperate with temperature measurement and code scanning. At the same time, everyone should pay close attention to the province's epidemic dynamics. , Or receive the epidemic prevention and control reminder, the call of the epidemic prevention and control personnel, or the abnormal health code, take the initiative to report to the community, units, hotels, etc. as soon as possible to cooperate with the implementation of prevention and control measures; Destination communities are reported; it is recommended not to go to areas in the epidemic.

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