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D.Encouraging data on the duration of immunity after SARS-CoV2 infection have been pre-published by a team of American researchers. This “preprint” study, which therefore has not yet been validated by colleagues, was made public earlier this week on the bioRxiv server. Based on a sample of 185 Americans (men and women, aged 19 to 81) with mild or severe covid19 (of whom 41 had contracted the virus six months or more ago), it suggests that immunity could last for months. or even years.
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