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Protective effect of a first SARS-CoV-2 infection from reinfection: a matched retrospective cohort study using PCR testing data in England
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| PREPRINT-MEDRXIV | ID: ppmedrxiv-22268896
2.
Risk of SARS-CoV-2 reinfections in children: prospective national surveillance, January 2020 to July 2021, England
Preprint
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| PREPRINT-MEDRXIV | ID: ppmedrxiv-21267372
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