COVID-19 vaccines effectiveness against symptomatic SARS-CoV-2 during Delta variant surge: a preliminary assessment from a case-control study in St. Petersburg, Russia

• Main Authors: Anton Barchuk (Author), Anna Bulina (Author), Mikhail Cherkashin (Author), Natalia Berezina (Author), Tatyana Rakova (Author), Darya Kuplevatskaya (Author), Oksana Stanevich (Author), Dmitriy Skougarevskiy (Author), Artemiy Okhotin (Author)
• Format: Book
• Published: BMC, 2022-09-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract Background Studies of mRNA and vector-based vaccines used in different countries report acceptable levels of effectiveness against SARS-CoV-2 infection caused by the Delta variants of SARS-CoV-2. No studies estimated vaccine effectiveness (VE) of Gam-COVID-Vac and other vaccines used in Rus...