Vaccine effectiveness against referral to hospital after SARS-CoV-2 infection in St. Petersburg, Russia, during the Delta variant surge: a test-negative case-control study.

Anton BarchukMikhail CherkashinAnna BulinaNatalia BerezinaTatyana RakovaDarya KuplevatskayaOksana StanevichDmitriy SkougarevskiyArtemiy Okhotin

Published in: BMC medicine (2022)

COVID-19 vaccination was effective against referral to hospital in patients with symptomatic SARS-CoV-2 infection in St. Petersburg, Russia. This protection is probably mediated through VE against lung injury associated with COVID-19.

Keyphrases

coronavirus disease
respiratory syndrome coronavirus
sars cov
primary care
healthcare
acute care
randomized controlled trial
systematic review
adverse drug
emergency department
drug induced