The author of this paper, Ren Lili, a researcher at the Institute of Pathogenic Biology of Peking Union Medical College, China Academy of Medical Sciences, introduced that the antibody level of asymptomatic infected people is lower than that of confirmed patients and symptomatic infected people, which has guiding value for accurate prevention and control in the future.
"With the detection, traceability and treatment resources far behind, China's public health system has successfully controlled the COVID-19 epidemic in Wuhan." Richard Stragnell, an internationally renowned expert in microbiology and immunology, wrote an article in the same issue of The Lancet magazine, pointing out that this study made people have a deeper understanding of the natural seroconversion of the epidemic urban population, and it was an important milestone in describing COVID-19 infection and understanding the immune status under the epidemic.
Extended data:
COVID-19 antibody can last for at least 9 months after it is produced.
On March 19, 2009, a serological follow-up survey conducted by China scientists in Wuhan, Hubei Province showed that 40% of COVID-19 antibody positive people in the local population had effective antiviral antibodies, which could last for at least 9 months. The research results were published in The Lancet, an internationally renowned medical journal, on June 9th, 65438.
This study reveals the dynamic changes of serum antibodies of infected people in COVID-19, which is also of reference value to the evaluation of vaccine protection effect. The study also showed that the corrected antibody positive rate was 6.9%, indicating that even if the epidemic broke out, only a small number of people in Wuhan were infected.
The main author of the paper, Wang Chen, Dean of Peking Union Medical College, China Academy of Medical Sciences, said that it is very important to evaluate the proportion of people infected with COVID-19 who have immunity for formulating effective disease prevention and control strategies and reducing the possibility of future epidemics.
Xiaoxiang morning herald-China scientist: COVID-19 antibody can last for at least 9 months after it is produced.