The human body’s immune system is unable to build up resistance against SARS-CoV-2, the virus that causes covid-19 disease, according to a study released by The New York Times. Just three months after infection, the body’s antibodies no longer recognize the virus, especially in less severe cases.

Normally, when the human body recovers from a disease, the immune system “registers” the causative agent so that, in the future, antibodies can fight it more easily.

“These data indicate the risks of using covid-19” immunity passports “and the need to support the extension of public health interventions, including social distance, hygiene, isolation of high-risk groups and mass testing,” they wrote. the researchers responsible for the study, which was published in the journal Nature Medicine on Thursday (18).

The logic of the “immunity passport” is simple: individuals who have already been infected with the SARS-CoV-2 virus and have recovered, would be free to work and move around the streets again. However, this strategy is based on the rash idea that if you caught the disease once, you are automatically immune.

In an interview with Revista Saúde Abril, researcher Daniel Dourado, from the Center for Studies and Research on Sanitary Law at the University of São Paulo (Cepedisa / USP), warns that research has identified that the body creates a reaction, but there is no evidence of that this reaction eliminates the virus in a second invasion attempt.

Although this corroborates the research published by Nature Medicine, it is worth mentioning that the researchers analyzed only 74 patients, a considerably low number. Therefore, for the results to have greater statistical significance, it will be necessary to conduct a broader research.


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