Effectiveness of a Fourth Dose of COVID-19 mRNA Vaccine Against Omicron Variant Among Elderly People in Singapore.

Tan, Celine Y; Chiew, Calvin J; Lee, Vernon J; Ong, Benjamin; Lye, David Chien; Tan, Kelvin Bryan

Tan, Celine Y; Chiew, Calvin J; Lee, Vernon J; Ong, Benjamin; Lye, David Chien; Tan, Kelvin Bryan.

Tan CY; Ministry of Health, Singapore.
Chiew CJ; Ministry of Health, and National Centre for Infectious Diseases, Singapore.
Lee VJ; Ministry of Health, and Saw Swee Hock School of Public Health, National University of Singapore, Singapore.
Ong B; Ministry of Health, and Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Lye DC; National Centre for Infectious Diseases, Yong Loo Lin School of Medicine, National University of Singapore, Lee Kong Chian School of Medicine, Nanyang Technological University, and Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore.
Tan KB; Ministry of Health, and Saw Swee Hock School of Public Health, National University of Singapore, Singapore.

Ann Intern Med ; 175(11): 1622-1623, 2022 Nov.

Article in English | MEDLINE | ID: covidwho-2025316

Subject(s)

COVID-19 Vaccines; COVID-19; Humans; Aged; Singapore/epidemiology; COVID-19/prevention & control; SARS-CoV-2/genetics

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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Vaccines / COVID-19 Type of study: Experimental Studies / Observational study Topics: Vaccines / Variants Limits: Aged / Humans Country/Region as subject: Asia Language: English Journal: Ann Intern Med Year: 2022 Document Type: Article Affiliation country: M22-2042

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