On Jul. 28, 2023, COVID vaccine uptake among hospital workers at a Philadelphia teaching hospital rose from 86% to 99% after implementation of mandate.

The study led by the University of Pennsylvania was conducted among 10,889 hospital employees followed from conducted among 10,889 hospital employees followed from Dec 16, 2020 – October 31, 2021. The study was published in Vaccine.

The results suggest that while mandates may be challenging to institutions and enforcement unpopular, they play an important role in reducing hesitancy and securing high vaccination rates among HCP, a group at high risk of COVID-19 given their employment and who can be a source of disease transmission to patients.