[Global Times reporter Ni Hao Zhang Jian] A video of "Shijiazhuang citizens become penguins in seconds after anal swab nucleic acid test" was spread on major online platforms.
The Shijiazhuang Internet whistleblowing center responded after authoritative verification: the news spread on the Internet is a rumors of a mixed flower.
What kind of detection method is an anal swab that has attracted great attention from netizens, and what is the difference in accuracy and scope of application from nucleic acid detection methods such as throat swabs?
The detection of anal swabs first attracted public attention. It was revealed at the Beijing epidemic prevention and control press conference on January 20 that all students, faculty and staff of the school where an asymptomatic infection was found on the 18th were subjected to nasopharyngeal swabs and oropharyngeal swabs. Swab, anal swab and serum test.
However, public information shows that Beijing is not the first area in the country to introduce anal swabs since the outbreak. Guangdong, Shanghai, Zhejiang and other places have successively increased anal swab testing to ensure the safety of patients discharged from the hospital.
According to a Spanish media report on February 1, anal swab testing has been launched in Galicia, Spain and other places.
Li Tong, deputy chief physician of the Department of Infectious Diseases, Beijing You'an Hospital, Capital Medical University, told the Global Times reporter a few days ago that in large-scale nucleic acid screening, anal swabs or stool tests for key populations have two purposes: One Reduce missed diagnosis; second, it is convenient to trace the source of infection.
Studies have found that some asymptomatic or mildly infected people recover quickly after being infected with the virus, and the pharyngeal nucleic acid may not be detected in 3 to 5 days.
The duration of nucleic acid-positive feces or anal swabs of some infected people is longer than that of the upper respiratory tract.
Li Tong once said that increasing the detection of anal swabs can increase the detection rate of infected persons and reduce missed diagnosis.
Li Tong once said that experts had considered adding anal swabs to the discharge standards for patients with "rejuvenation", but later found that they were not suitable for large-scale implementation.
It is mainly based on the positive anal swab nucleic acid as the standard, which will greatly increase the number of days of hospitalization. In addition, there is no evidence that people with negative respiratory tract nucleic acid and positive anal swab nucleic acid are infectious.
Therefore, the National Health Commission did not explicitly require anal swab testing.
Li Tong once said that, in fact, compared with nasopharyngeal swabs or oropharyngeal swabs, anal swab testing does not have much physical discomfort.
Many people are afraid of anal swab testing, mainly because they feel awkward.
Li Tong once said that considering that the collection of anal swabs is not as convenient as throat swabs, it is currently only collecting throat swabs and anal swabs from key groups such as isolation points.
Li Tong once said that there are three types of key populations that require anal swab testing: one is close contacts of confirmed cases; the other is immigrants; the third is those with fever and gastrointestinal symptoms, especially those with epidemiological history, doctors suspect that it may If you are infected with the new coronavirus, you will be asked to do anal swab testing.
The application of anal swabs shows that China flexibly adopts detection methods for different populations in different scenarios to prevent the occurrence of epidemics in all directions.
According to a notification from the National Health Commission on the 1st, on January 31, 33 new local confirmed cases nationwide (22 in Heilongjiang, 10 in Jilin, and 1 in Hebei).
The press conference in Shijiazhuang on the afternoon of February 1 announced that there were no new confirmed cases and no new asymptomatic infections in Shijiazhuang from 0-14 on the 1st.
On February 1, Beijing Municipal Government Spokesperson Xu Hejian introduced at the epidemic prevention and control press conference that Beijing has not reported new confirmed cases for two consecutive days. At present, only Ronghui Community in Tiangongyuan Street, Daxing District, is a high-risk area. , Other regions are low-risk regions.