Decreased infectivity following BNT162b2 vaccination: A prospective cohort study in Israel

Autor: Gili Regev-Yochay, Sharon Amit, Moriah Bergwerk, Marc Lipsitch, Eyal Leshem, Rebecca Kahn, Yaniv Lustig, Carmit Cohen, Ram Doolman, Arnona Ziv, Ilya Novikov, Carmit Rubin, Irena Gimpelevich, Amit Huppert, Galia Rahav, Arnon Afek, Yitshak Kreiss
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: The Lancet Regional Health. Europe, Vol 7, Iss , Pp 100150- (2021)
Druh dokumentu: article
ISSN: 2666-7762
DOI: 10.1016/j.lanepe.2021.100150
Popis: Background: BNT162b2 was shown to be 92% effective in preventing COVID-19. Prioritizing vaccine rollout, and achievement of herd immunity depend on SARS-CoV-2 transmission reduction. The vaccine's effect on infectivity is thus a critical priority. Methods: Among all 9650 HCW of a large tertiary medical center in Israel, we calculated the prevalence of positive SARS-CoV-2 qRT-PCR cases with asymptomatic presentation, tested following known or presumed exposure and the infectious subset (N-gene-Ct-value
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