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ABSTRACT
Since June 2020, the SARS-CoV-2 Immunity and Reinfection Evaluation (SIREN) study has conducted routine PCR testing in UK healthcare workers and sequenced PCR-positive samples. SIREN detected increases in infections and reinfections during Omicron subvariant waves contemporaneous with national surveillance. SIREN's sentinel surveillance methods can be used for variant surveillance.
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Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies Topics: Variants Language: English Journal subject: Communicable Diseases Year: 2022 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies Topics: Variants Language: English Journal subject: Communicable Diseases Year: 2022 Document Type: Article