The risk of mortality and severe illness in patients infected with the omicron variant relative to delta variant of SARS-CoV-2: a systematic review and meta-analysis.
Ir J Med Sci
; 2023 Feb 09.
Article
in English
| MEDLINE | ID: covidwho-2232083
ABSTRACT
We summarized through systematic review and meta-analysis of observational studies the risk of mortality as well as severe illness of COVID-19 caused by omicron variant relative to delta variant of SARS-CoV-2. A total of twelve studies were included. Our results showed significantly reduced odds of mortality (pooled OR = 0.33; 95% CI 0.16-0.67) and significantly reduced odds of severe illness (pooled OR = 0.24; 95% CI 0.21-0.28) in patients infected with the omicron variant of SARS-CoV-2 relative to their counterparts infected with the delta variant. Findings of lower disease severity following infection with the omicron variant of SARS-CoV-2 than the delta variant are encouraging during the ongoing transition from the pandemic phase into the endemic phase of COVID-19.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Type of study:
Observational study
/
Prognostic study
/
Reviews
/
Systematic review/Meta Analysis
Topics:
Variants
Language:
English
Year:
2023
Document Type:
Article
Affiliation country:
S11845-022-03266-6
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