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

HIGHLIGHTS

  • who: Anton Barchuk from the Institute for Interdisciplinary Health Research, European University at StPetersburg, Shpalernaya Ulitsa, StPetersburg, Russia have published the paper: 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, in the Journal: (JOURNAL) of July/23,/2021
  • what: Since all the patients in the study had COVID-19, the results provide specific information on vaccination impact on disease severity and its clinical course. The vaccination status was collected for research purposes and was not a part . . .

     

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