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According to the Qianjiang Evening News, on April 22, Hangzhou detected a The nucleic acid-positive case was found in epidemiological investigations. At 8:40 a.m. the day before home isolation, he had a friction with a stranger at an intersection and quarreled for a minute. Since then, the community has been closed due to confirmed cases. Immediately, after epidemiological tracing, another protagonist of the quarrel, Chen Mou, was also included in the management as a close contact of the case.
Zhao Gang, director of the Hangzhou Center for Disease Control and Prevention, Zhejiang Province, introduced in an interview with Qianjiang Evening News on April 29 that the new crown The virus is mainly spread through droplets and contact. It is contagious during the incubation period. In the intense scene of quarrel, positive patients may spray out the virus; and during the quarrel, even if wearing a mask, the mask may not fit effectively due to excessive facial movements, air tightness decline, and cannot provide adequate protection. It is even more dangerous if there is a physical conflict. ①
4 in life At any time, special attention should be paid to protection
What other scenarios in life need special attention to protection what about? Director Zhao Gang listed a few items: ①
1. Cough, Sneeze
Cough, Sneezing can form large numbers of droplets that spread bacteria or viruses. Under normal circumstances, the spread of droplets does not exceed 2 meters, but coughing or sneezing can make droplets more than 8 meters. So, if you need to sneeze or cough, cover your mouth and nose with a tissue, then throw the tissue in a covered trash can. If you don’t have a tissue, you can cover your mouth and nose with your elbow or shirt sleeve to prevent droplets from splashing around, and remember to wash your hands in time!
span>2. Rub your eyes and wipe your nose
The Center for Disease Control and Prevention of Hangzhou, Zhejiang Province once conducted an observation experiment , During the 20-minute observation period, 70.3% of adults and 86.4% of children experienced involuntary nose touching and rubbing of eyes. In fact, in addition to droplet transmission, the virus can also enter the body and cause infection through hand contact, rubbing the eyes, touching the mouth and nose, etc. Therefore, in preventing the invasion of infectious diseases, washing hands frequently and wearing masks are equally important.
3. When removing the maskProtect the respiratory tract Everyone already knows the importance of wearing a mask for infectious diseases, but taking off the mask is a more important step. This is because while the mask protects us, its outer surface has become the front line of blocking the virus and the most “dirty” The place. Therefore, not only do you need to wash your hands carefully before taking off the mask, but also pay attention not to touch the outer layer of the mask with your hands when taking off the mask, and remember to wash your hands properly after taking off the mask.
4. During nucleic acid testing
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When doing nucleic acid testing, we need to protect ourselves and need to pay attention to some details. For example: keep a distance when queuing, don’t talk, don’t play with your mobile phone; don’t shout “ah” when collecting nucleic acid, it is recommended to hold your breath, complete the test as soon as possible with the instructions, and then quickly put on a mask; don’t put your mobile phone, ID card, etc. Put personal items on the tabletop for nucleic acid testing, and do not touch the tabletop with your hands. ①
Don’t do these things again during the epidemic!
1. Spitting p>
On May 1st, according to a press conference on epidemic prevention and control in Guangzhou, the relevant departments in this epidemic had a negative impact on the working and living environment of the cases. More than 1,000 samples were sampled, of which 16 were positive, mainly in frequently contacted parts such as doorknobs and corridor handrails. In addition, the dispatch personnel also found that individual infected persons had poor hygiene habits, spitting and blowing their noses everywhere. ③
Some people still have the habit of spitting everywhere. In real life, there are indeed people who are infected by spitting on others. According to the Xi’an Evening News, in March this year, a confirmed case B in Xi’an had a brief time-space intersection with confirmed case A in an outdoor public place. Case A spat out a mouthful of phlegm and left quickly when passing case B at close range. Wearing a mask, the follow-up case B was confirmed.
This is because in the process of spitting, there will also be sprays of droplets, large droplets It will sink directly to the ground, and some small particles of droplets will be suspended in the air to form aerosols, and others can inhale the aerosols to cause transmission. ④
Suggestions:Spit spit to cover mouth and nose with a tissue, wrap it in the trash can.
2. Do not cover coughs and sneezes
Ningbo CDC issued a reminder on April 11 that aerosols caused by coughing and sneezing can remain in the air for up to 10 minutes , the bacteria and viruses in it will also spread. If it is a disease-causing pathogen, the harm should not be underestimated. ⑤
Suggestion:When you sneeze or cough, cover your mouth and nose with a tissue or handkerchief, then throw the tissue in the sorted trash can. If you don’t have a tissue or a handkerchief, you can cover your mouth and nose with your elbow, the inside of your upper arm, or the inside of your collar.
3. Habitual rubbing of eyes and nose
Eyes, nose and mouth are all channels for viruses to enter the human body. into the human body.
Suggestions:Proactively and consciously reduce eye rubbing, Actions such as touching the nose and mouth, or after washing your hands. You can also try to find the reason why you touched your face. If you have problems such as itchy skin, acne, rhinitis, and eye discomfort after watching a computer for a long time, you can fundamentally improve it.
This article is synthesized from:① 2022-04-29 Qianjiang Evening News “A quarrel with people at the intersection In one minute, the Hangzhou guy was in close contact and was quarantined and controlled for 14+7! Hangzhou CDC Emergency Reminder”② 2021-01-15 Beijing’s 210th Press Conference on New Coronary Pneumonia Prevention and Control③ 2022-05-01 Epidemic Prevention and Control in Guangzhou, Guangdong Province Control press conference④ 2022-03-12 Xi’an Evening News “One person walking outdoors in Xi’an without wearing a mask is infected! 》⑤ 2022-04-11 Ningbo CDC “Droplets from sneezing spread several meters! Be sure to cover your mouth and nose”
Editor: Ren Xuan
Reviewer: Yang Xiaoming
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