Effectiveness of CoronaVac and BNT162b2 Vaccines Against Severe Acute Respiratory Syndrome Coronavirus 2 Omicron BA.2 Infections in Hong Kong.
J Infect Dis
; 226(8): 1382-1384, 2022 10 17.
Article
in English
| MEDLINE | ID: covidwho-2077786
ABSTRACT
There is limited evidence on vaccine effectiveness against asymptomatic or mild Omicron infections. We estimated that recent third doses of messenger RNA or inactivated vaccines reduced the risk of self-reported infection by 52% (95% confidence interval, 17%-73%) among randomly sampled adults during the Omicron BA.2-dominated surge in Hong Kong.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
COVID-19
/
BNT162 Vaccine
Type of study:
Experimental Studies
/
Observational study
/
Prognostic study
/
Randomized controlled trials
Topics:
Vaccines
/
Variants
Limits:
Adult
/
Humans
Country/Region as subject:
Asia
Language:
English
Journal:
J Infect Dis
Year:
2022
Document Type:
Article
Affiliation country:
Infdis
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