(Fighting against New Coronary Pneumonia) Shanghai disease prevention and control expert "Cloud Science": The weather is hot, when can I not wear a mask?

　　Sino-Singapore Online, May 2 (Zheng Yingying) Zhu Renyi, Director of the Disinfection and Infection Control Section of the Infectious Diseases Prevention and Control Center of the Shanghai Center for Disease Control and Prevention, Zhu Renyi held a cloud lecture at the Shanghai Science and Technology Forum hosted by the Shanghai Science and Technology Museum on the 2nd. The live broadcast platform will spread the knowledge of virus prevention and control in the post-epidemic era to the public, especially students and parents who are in the school season.

Humans will also coexist with the new coronavirus for some time

　　In just a few months, the new coronavirus has spread around the world. Zhu Renyi said that the current "pandemic" is still showing no signs of slowing down. The new coronavirus has tenacious vitality. Many virus experts estimate that this virus is difficult to eradicate in a short period of time.

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　　He said that generally as the weather gets hotter, the virus ’s virulence will relatively weaken and its spread will also be reduced, but in the next period, will the virus come back again, will it cause large-scale spread, in fact, this This is exactly what the epidemiology experts and virus experts are worried about.

　　The weather is hot and it is really uncomfortable to wear a mask, but why do we still wear a mask? Zhu Renyi said that this is because the new coronavirus has some asymptomatic infections, and you do n’t know who is the “latent person” of the new coronavirus.

　　When can we not wear a mask? He said that it still depends on the situation of epidemic control and the possibility of asymptomatic infection among our population. He said that at this stage, our country's overall epidemic situation is relatively well controlled, and (prevention and control) policies are constantly being adjusted.

Cunning "Grandma Wolf" virus

　　"We hope that the new crown virus will disappear, but this virus is not simple, it is very cunning." Zhu Renyi said.

　　To say that it is cunning, first of all, Zhu Renyi introduced that the human body has an immune system and recognition capabilities, and the enemy has a "gun", but this virus has a spike glycoprotein on it, which will pretend to be "self" and enter the body , A bit like a wolf, pretending to be the voice of "grandmother".

Zhu Renyi, Director of the Disinfection and Infection Control Section of the Infectious Diseases Prevention and Control Center of Shanghai Municipal Center for Disease Control and Prevention, is on the live broadcast. Photo courtesy of Shanghai Science and Technology Museum

　　Secondly, he introduced that after the virus entered the human body, it did not occur immediately, "If the enemy arrives at home, (show) is the enemy, then the immune system will work together to kill it, but it pretends to be" self ", lurking very well OK, and then continue to grow yourself. When the virus multiplies to a certain extent, it will suddenly break out. "

　　Third, this virus is very adaptable and it is constantly mutating.

Good habits are solidified in the post-epidemic era

　　Zhu Renyi said that the new crown virus is very cunning and mutates quickly, so it is very likely that this virus will coexist with humans for a period of time. It is not clear whether it will coexist for a long time. Therefore, our prevention and control will take some time.

　　He believes that the virus is "changing", we also need to change, including: post-epidemic era, some good behavior habits, such as hygiene, cough etiquette, etc., we have to solidify it.

　　In this "online epidemic prevention course", Zhu Renyi also popularized some "practical protection knowledge": for example, students go to school and wear disposable medical masks, because the better the protection, the more difficult it is to breathe, and there is no need to use more High-grade masks; masks are not required when not in close contact with people, such as when riding a bicycle or running, and people need to breathe a lot of air during these strenuous exercises; because of the long use time, under normal circumstances The masks are changed every day. When taking a physical education class or riding a bicycle, the masks can be taken down and put in paper bags instead of plastic bags because the masks will get wet after wearing. If put in an airtight plastic bag, (bacteria) will multiply. (Finish)