35 years of study indicate that coronavirus immunity does not last long


Coronaviruses that cause the common cold can infect people repeatedly, affecting immunity to the kovanaviruses that cause COVID-19, which can likewise be short-lived.

In a new study, published on 14 September in the journal Nature medicine, Scientists monitored 10 individuals for more than 35 years, to determine how often they were infected with four known climates Coronavirus. Since these viruses – known as HCoV-NL63, HCoV-229E, HCoV-OC43 and HCoV-HKU1 – either cause mild symptoms of the common cold or have no symptoms, the team periodically noted Blood of participants examined. Antibodies To detect new cases of infection.

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