Abstract:The aim of the study – systematization and analysis of information on the prevalence of SARS-CoV-2 virus variants according to information databases and own cross-sectional studies.
Materials and methods. The analysis was conducted in the period 2020–2021 using information databases and research resources: Google Scholar, Cochrane Library, Scirus, Springer, Medline, Embase, PubMed, Web of Science. Our own examination included a total of 80 nasopharyngeal swabs (at least two specimens in each case) collected fr… Show more
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