No. 17 negative No. 18 confirmed, Peking University International Nurse test suddenly reversed?

category:Global
 No. 17 negative No. 18 confirmed, Peking University International Nurse test suddenly reversed?


As for the error, according to a study published in the annals of internal medicine by researchers from Johns Hopkins University in the United States, the validity of nucleic acid detection varies greatly in the process of new crown infection. Generally, the probability of obtaining false negative results can vary from 100% on the first day to 67% on the fourth day before symptoms appear. After symptoms began to appear, the incidence of false negative results dropped to 38% on the fifth day and 20% on the eighth day, but it began to rise every day. The study finally concluded that: negative coronavirus detection does not guarantee that the new coronavirus does not infect the patients. During the period of infection, at least one fifth of the new coronavirus patients have the probability of missed diagnosis, that is, false negative results will appear.

On April 24, the health Times reported that the final diagnosis was made only after four times of nucleic acid detection for an imported case in Jilin Province. The accuracy of nucleic acid detection is not 100 percent at present, Lin Minggui, director of infectious diseases department, Tsinghua Changgeng hospital, Beijing, told the health times in an interview. During the epidemic, there are many confirmed patients with nucleic acid detection three times, four times, sometimes even five or six times before the final diagnosis.

Viruses behave differently in different people, Lin explained. At the same time, the accuracy of nucleic acid detection is actually affected by many factors, such as reagent quality, collection site, sample type, sample storage time, level of collection personnel and inspectors, etc. Lin Minggui explained that there is no need to worry about these. Now, nucleic acid testing personnel have unified and strict training all over the country.

Lin Minggui suggested that for some highly suspicious personnel, isolation of close contacts around and close observation are the key points of next prevention and control.

3A fax also mentioned that nucleic acid detection must be coordinated with flow control for prevention and control, especially for the personnel who have been to the new place of departure and the secret contact personnel, they must adhere to the dual line of nucleic acid detection and isolation, even if the nucleic acid detection is negative, they must continue to be isolated until the risk is eliminated.

(function(){( window.slotbydup=window .slotbydup||[]).push({id:u6056789,container:ssp_ 6056789, async:true });}) (); relevant recommendations: the first emergency department nurse of Peking University International Hospital has confirmed the diagnosis of the whole hospital has suspended the treatment of patients; 2669 doctors and nurses have been tested as negative; the first emergency department nurse of Peking University International Hospital has confirmed the diagnosis of Haidian cases; source: Health times editor in charge: Yuan Yijiao_ NB14956