Vaccine-induced and naturally-acquired protection against Omicron and Delta symptomatic infection and severe COVID-19 outcomes, France, December 2021 to January 2022.
Euro Surveill
; 27(16)2022 04.
Article
in English
| MEDLINE | ID: covidwho-1809282
ABSTRACT
We assessed the protection conferred by naturally-acquired, vaccine-induced and hybrid immunity during the concomitant Omicron and Delta epidemic waves in France on symptomatic infection and severe COVID-19. The greatest levels of protection against both variants were provided by hybrid immunity. Protection against Omicron symptomatic infections was systematically lower and waned at higher speed than against Delta in those vaccinated. In contrast, there were little differences in variant-specific protection against severe inpatient outcomes in symptomatic individuals.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Vaccines
/
COVID-19
Type of study:
Observational study
Topics:
Vaccines
/
Variants
Limits:
Humans
Country/Region as subject:
Europa
Language:
English
Journal subject:
Communicable Diseases
Year:
2022
Document Type:
Article
Affiliation country:
1560-7917.Es.2022.27.16.2200250
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