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Risk and symptoms of COVID-19 in health professionals according to baseline immune status and booster vaccination during the Delta and Omicron waves in Switzerland—A multicentre cohort study
Babouee Flury B,
Güsewell S,
Egger T,
Leal O,
Brucher A,
et al.
(2022)
Risk and symptoms of COVID-19 in health professionals according to baseline immune status and booster vaccination during the Delta and Omicron waves in Switzerland—A multicentre cohort study.
PLOS Medicine 19(11): e1004125.
https://doi.org/10.1371/journal.pmed.1004125