What should I do if there are asymptomatic people around me?
Expert: Wash hands frequently and wear masks to maintain proper distance
Yangtze River Daily News (Reporter Huang Qi) On April 15, our province added 37 cases of asymptomatic infections, 0 cases were diagnosed, 36 cases were released from isolation, and 620 cases of asymptomatic infections are still under medical observation.
Many domestic experts said that the prevention and control of the epidemic has entered the "second half", asymptomatic infections have attracted the attention of all walks of life. What if there are asymptomatic people around us? Regarding such issues of general public concern, a reporter from the Yangtze River Daily interviewed Cui Dan, deputy director and researcher of the Department of Global Health of the School of Health, Wuhan University, and Jiang Rongmeng, a member of the expert group of the National Health and Health Commission and director of the Beijing Ditan Hospital Infectious Disease Diagnosis and Research Center.
What if there are asymptomatic people around me?
Cui Dan said that strictly speaking, asymptomatic infections are divided into two categories, one is the incubation period of the new coronavirus patients, currently asymptomatic because there is no disease, and may be converted to a confirmed case in a few days. Is contagious. The other type is asymptomatic infected people who actually carry the virus but have no clinical manifestations. The virus in this type of human body has not been cleared, nor has the disease occurred, and it is in a state of coexistence with the virus. According to authoritative experts such as Zhong Nanshan, asymptomatic infections in the latter case are relatively infectious.
Cui Dan said that there is no way of knowing whether these two types of asymptomatic people are around. In line with the principle of "preventing strict enemies", strengthening personal protection is the most effective preventive method. The main methods are to wash hands frequently, wear masks when going out, and maintain an appropriate distance.
Jiang Rongmeng said that some people are worried about being infected with asymptomatic people around them, and some are worried that they may be passed on to others by asymptomatic people. Although asymptomatic patients do not go to the clinic because they are asymptomatic, it is not easy to be found and has certain infectivity, but only if there is no protection, close contact with asymptomatic patients with positive nucleic acid tests can be infected. It can be prevented by keeping a safe social distance (such as 1-2 meters). For the public, if there are no symptoms, there is no close contact history of people with new coronavirus infection, unless they participate in the investigation, you can not go to the test.
Will there be many asymptomatic people in Wuhan? What is the proportion of the population?
Cui Dan said in the press release on the 15th that Wuhan had unblocked a total of 226,000 nucleic acid tests in the past 7 days. Among them, 130 people were asymptomatically infected, with a rate of about 5.7 ten thousandths. In addition, Wuhan's resumption of production enterprises spontaneously organized employees to do nucleic acid testing, conducted 143,000 person-times, and found 113 cases of asymptomatic infections, which is less than 8 in 10,000.
From another perspective, the number of asymptomatic infections and the number of diagnoses should be positively correlated, and our city has maintained zero confirmed cases for many consecutive days, so it can be determined that there will not be a large proportion of asymptomatic infections in Wuhan Do n’t scare yourself, do n’t believe rumors.
In addition, in order to understand the transmission characteristics, epidemiological characteristics and pathogenic laws of asymptomatic infected persons, China has carried out sera epidemiological investigations of asymptomatic infected persons simultaneously in 9 provinces and cities, including Wuhan. Specific measures include reporting within 2 hours and completing the epidemiological investigation of asymptomatic patients within 24 hours. Identify possible close contacts of asymptomatic patients as early as possible, and take 14 days of concentrated isolation medical observation. If the relevant personnel develop symptoms during the isolation medical observation, they will be immediately transferred to the designated medical institution for treatment.
Can an asymptomatic infected person heal after 14 days of isolation, without contagion?
Jiang Rongmeng said that recently, the State Council issued the "New Coronavirus Asymptomatic Infected Persons Management Regulations" in response to the new coronavirus infection pneumonia joint prevention and control mechanism, and proposed to strengthen the management of asymptomatic infected persons. Asymptomatic infected persons should focus on medical observation 14 day. Patients with clinical symptoms and signs related to new coronary pneumonia were converted to confirmed cases. Those who have concentrated medical observation for 14 days and have two consecutive negative nucleic acid tests (with a sampling time of at least 24 hours apart) can be released from concentrated medical observation. Those who still have positive nucleic acid tests and no clinical symptoms need to continue concentrated medical observation.
In addition, the "Standards" pointed out that for asymptomatic patients who have been released from centralized medical observation, medical observation and follow-up will continue for 14 days. After the release of the concentrated medical observation, the follow-up visits will be conducted at designated hospitals in the second and fourth weeks to keep abreast of their health status. Therefore, it can be said that the management of asymptomatic infected persons is relatively strict and thorough, and the public need not worry too much.