Background The published estimates of SARS-CoV-2 seroprevalence in Russia are few.
The study aimed to assess the SARS-CoV-2 seroprevalence in Arkhangelsk (Northwest …

Introduction. The coronavirus disease (COVID-19) pandemic was announced by WHO in
February 2020. In the Khabarovsk Krai, the first three cases of the disease were diagnosed …

Background The COVID-19 pandemic in Russia has already resulted in 500,000 excess
deaths, with more than 5.6 million cases registered officially by July 2021. Surveillance …

This study was conducted to assess the spread of SARS-CoV-2 in Russia and the
adaptation of the population to the virus in March to June 2020. Two groups were …

Objective. To estimate the level of seroprevalence in the population of the Vladimir Region
during the COVID-19 epidemic. Materials and methods. Work was done as part of the first …

Materials and methods. Study was conducted during August–September 2020 in 6
municipalities of Lithuania. The sample comprised 3087 adult participants from the general …

The present study aimed to assess antibody seropositivity prevalence among symptomatic
individuals and individuals with a high risk of occupational exposure to SARS-CoV-2 …

Properly conducted serological survey can help determine infection disease true spread.
This study aims to estimate the seroprevalence of SARS-CoV-2 antibodies in Saint …

Aim. Identification of epidemiological patterns of the SARS-CoV-2 spread among the
population of St. Petersburg during the one-year COVID-19 pandemic period. Materials and …

Objectives The objective of this study was to assess the population prevalence of SARS-
CoV-2 and changes in the prevalence in the adult general population in Estonia during the 1 …