The full text is 1498 words long and takes about 4 minutes to read
"A confirmed case in Xi'an was infected with a mouthful of phlegm", which once appeared on the first hot search on the 12th.
According to the official microblog of the first news column of Shaanxi Television, Zhang Yi, a disease control expert of the Shaanxi Provincial Center for Disease Control and Prevention, said in an interview with reporters that Aomi Kerong is very contagious, and there have been cases in Xi'an City that have been infected because they do not wear masks when walking outdoors, and it is recommended that citizens strengthen personal protective measures and wear masks in outdoor activities.
He introduced that confirmed case B reported by Xi'an City on March 10 was found in the hospital due to fever. At first, the investigation showed that the case had no clear epidemiological history and was not on the existing chain of transmission at that time, which was a red flag, was there already community transmission in Xi'an?
Disease control and public security departments at all levels carried out traceability investigations overnight, and finally made major discoveries through whole-gene sequencing, point mapping, trajectory cross-comparison and viewing video surveillance:
Video surveillance shows that the original case B had a brief spatio-temporal intersection with confirmed case A in an outdoor public place on March 6. Zhang Yi said: "The scene at that time was that case A spat out a mouthful of phlegm and quickly left when passing case B close, and case B did not wear a mask at that time. ”
Zhang Yi analyzed: "Some people may ask, can spitting in this way cause transmission? And it's outdoors. The answer is yes, case A was confirmed on March 8, March 6 has been in the detoxification period, people cough, spit, or sneeze in the process, from the body of the spray of droplets are large and small, large particles of droplets will directly settle to the ground, and some small particles of droplets will be suspended in the air, forming an aerosol, others inhale aerosol can cause transmission. At this time, Case B did not wear a mask and was infected in this way. ”
In addition, the reporter also learned that case B has not been vaccinated against the new crown virus, and if he is vaccinated against the new crown virus and wears a mask, it will reduce the possibility of this infection. Therefore, it is recommended that people who meet the conditions for vaccination and have no contraindications to vaccination should complete the full vaccination of the new crown virus vaccine as soon as possible, and after completing the whole process of vaccination for half a year, they should be vaccinated as soon as possible.
This case is not unique:
The first patient of the epidemic in Zhoukou did not wear a mask and was infected after crossing the Jiangxi case for 20 seconds
On November 12, 2021, a press conference on the prevention and control of the new crown epidemic was held in Zhoukou, Henan. According to Leng Bing, director of the Zhoukou Municipal Center for Disease Control and Prevention, the first case of the epidemic in Fugou County, Zhoukou City, was infected in Xinmi without wearing a mask and crossed with the infected person in Jiangxi for 20 seconds.
Ningbo City reported the details of new cases in Jiangbei District: 15 seconds! The vegetable farm met and was infected
On February 5, 2020, Ningbo City reported the details of new cases in Jiangbei District.
Patient 5: Male, 56 years old, currently residing in Shuangdong Road Community, Wenjiao Street, Jiangbei District, was confirmed as a confirmed case of pneumonia infected by the new coronavirus on 4 February.
According to the public video comparison of the district public security department on February 5, at 7:47 a.m. on January 23, the patient had a short (about 15 seconds) close co-residence with passers-by (2: female, 61 years old, living in Cuibai West Lane, Wenjiao Street, wenjiao Street, and participated in a blessing activity on January 19) at the same stall when buying vegetables at Shuangdongfang Vegetable Market, and neither of them wore masks.
Hangzhou City reported the details of the new cases: 50 seconds! The bar station at the medical center was infected
At 0-24:00 on February 5, 2020, there were 10 new confirmed cases of pneumonia infected by the new coronavirus in Hangzhou, of which 1 couple (husband Xu xxx, wife Wang xxx) was confirmed at the same time.
According to the local public security department's public video comparison on February 5, at 14:21 on January 22, Xu entered the medical center from the entrance of the pharmacy of the medical center and met Yang Moumou (a confirmed case who became ill on January 22), when Xu Moumou took medicine at the bar on the first floor, yang Moumou stayed at the outside bar, and there was a close stay for about 50 seconds, during which both did not wear masks. On January 25 and January 27, Xu X and Wang X became ill one after another, and were confirmed on February 5.
As one of the physical barrier methods, masks can not only avoid the spread of pathogens from virus carriers, but also reduce the risk of pathogen inhalation by the human body, and have a two-way isolation and protection effect, especially during the epidemic period, wearing masks is an important personal protection measure. Therefore, we call on the masses that the currently circulating new coronavirus Omikejong strain is very contagious, even outdoors, can not guarantee absolute safety, should wear a mask. You should also pay attention not to spit on the ground, if you cough up phlegm, it is best to wrap the sputum with a tissue or handkerchief, throw it in the trash, or take it with you and wash it afterwards. When coughing and sneezing, avoid others with your head down and cover your mouth and nose with a handkerchief or tissue.
Source 丨 First News, Guangming Network, etc
Image source 丨Visual China, Weibo screenshot
Editor 丨 Zhang Yajing
