Research shows that the antibody level of patients with new coronavirus infection will decrease rapidly after recovery

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 Research shows that the antibody level of patients with new coronavirus infection will decrease rapidly after recovery


According to the introduction, the team led by scholars from Chongqing Medical University launched a follow-up study on new coronavirus infected persons in Chongqing. The subjects of the study were 285 infected persons, including 37 asymptomatic infected persons, so as to systematically analyze the clinical and immunological characteristics of new coronavirus asymptomatic infected persons.

The survey found that about 90% of cases will reduce the total antibody level by more than 70% two months after discharge.

In addition, some asymptomatic patients actually have lung inflammation; the time of virus RNA shedding in asymptomatic patients is longer than that in symptomatic patients; the serum IgG antibody level in asymptomatic patients is significantly lower than that in symptomatic patients, and their immune response is weaker than that in symptomatic patients.

According to the researchers, their findings indicate that people infected with the new coronavirus may be infected again after recovery. Some countries envisage that the prevention and control strategy of issuing immune certificate to the recovered people has potential risks. Before the advent of vaccines and effective drugs, effective public health interventions should continue to be used. At the same time, it suggests that large-scale serological investigation of the new coronavirus infection should be carried out as soon as possible Start.

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