1.
Emerg Infect Dis
; 29(1)2022 Dec 01.
Artículo
en Inglés
| MEDLINE | ID: covidwho-2230070
RESUMEN
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.