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Risk of SARS-CoV-2 reinfection is time- and variant-dependant, France, January 2021 to August 2022 (preprint)
medrxiv; 2022.
Preprint
in English
| medRxiv | ID: ppzbmed-10.1101.2022.11.09.22282113
ABSTRACT
Since the emergence of Omicron, reinfections with SARS-CoV-2 have been rising. We estimated the risk of SARS-CoV-2 reinfection in the widely vaccinated French population, from January to August 2022. At nine weeks post-infection, the relative risk of reinfection, primary infection with pre-Delta variants being the reference group, was estimated at 0.43 [95%CI 0.40-0.47] if the primary infection was attributed to Delta, 0.21% [95%CI 0.19-0.24] with BA.1 and 0.17% [95% CI 0.15-0.18] with BA.2, and rapidly waned overtime. After a BA.1 primary infection the protection was similar against BA.2 or BA.4/5 reinfection.
Full text:
Available
Collection:
Preprints
Database:
medRxiv
Main subject:
Infections
Language:
English
Year:
2022
Document Type:
Preprint
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