From Delta to Omicron—Genetic Epidemiology of SARS-CoV-2 (hCoV-19) in Southern Poland
Since severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first reported in Wuhan, China, in December 2019, it has evolved, leading to variants that differ in their transmissibility, severity of disease, and susceptibility to therapy. Our goal was to describe the dynamics of the emergen...
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2025-07-01
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| author | Maria Miklasińska-Majdanik Emilia Morawiec Jolanta Bratosiewicz-Wąsik Karol Serwin Adam Pudełko Michał Czerwiński Anna Bednarska-Czerwińska Miłosz Parczewski Tomasz J. Wąsik |
| author_facet | Maria Miklasińska-Majdanik Emilia Morawiec Jolanta Bratosiewicz-Wąsik Karol Serwin Adam Pudełko Michał Czerwiński Anna Bednarska-Czerwińska Miłosz Parczewski Tomasz J. Wąsik |
| author_sort | Maria Miklasińska-Majdanik |
| collection | DOAJ |
| description | Since severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first reported in Wuhan, China, in December 2019, it has evolved, leading to variants that differ in their transmissibility, severity of disease, and susceptibility to therapy. Our goal was to describe the dynamics of the emergence of SARS-CoV-2 variants among the population of the southern part of Poland (Silesia) in the period from September 2021 to August 2022. Our results showed that, like in the rest of Poland or in neighboring countries (Czech Republic, Slovakia), Delta was replaced by the Omicron BA.1 variant, isolated for the first time in December 2021, and subsequently Omicron BA.2 and its derivative subvariants acquiring further mutations. Finally, in August 2022, only the BA.5.2.26 subvariant was present in Silesia. However, we noted differences in the dynamics of emergence and spread of some Omicron subvariants compared to the rest of Poland and the neighboring countries, which may be due to differences in population density or import of the virus from other regions. |
| format | Article |
| id | doaj-art-c60adb2d496340069a41cdb1056cf15f |
| institution | Kabale University |
| issn | 2076-0817 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Pathogens |
| spelling | doaj-art-c60adb2d496340069a41cdb1056cf15f2025-08-20T03:32:15ZengMDPI AGPathogens2076-08172025-07-0114770810.3390/pathogens14070708From Delta to Omicron—Genetic Epidemiology of SARS-CoV-2 (hCoV-19) in Southern PolandMaria Miklasińska-Majdanik0Emilia Morawiec1Jolanta Bratosiewicz-Wąsik2Karol Serwin3Adam Pudełko4Michał Czerwiński5Anna Bednarska-Czerwińska6Miłosz Parczewski7Tomasz J. Wąsik8Department of Microbiology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 40-055 Katowice, PolandDepartment of Microbiology, Faculty of Medicine in Zabrze, Academy of Silesia in Katowice, 40-555 Katowice, PolandDepartment of Microbiology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 40-055 Katowice, PolandDepartment of Infectious, Tropical Diseases and Acquired Immunodeficiency, Pomeranian Medical University in Szczecin, 70-204 Szczecin, PolandGyncentrum, Laboratory of Molecular Biology and Virology, 40-851 Katowice, PolandGyncentrum, Laboratory of Molecular Biology and Virology, 40-851 Katowice, PolandGyncentrum, Laboratory of Molecular Biology and Virology, 40-851 Katowice, PolandDepartment of Infectious, Tropical Diseases and Acquired Immunodeficiency, Pomeranian Medical University in Szczecin, 70-204 Szczecin, PolandDepartment of Medical Microbiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, 40-055 Katowice, PolandSince severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first reported in Wuhan, China, in December 2019, it has evolved, leading to variants that differ in their transmissibility, severity of disease, and susceptibility to therapy. Our goal was to describe the dynamics of the emergence of SARS-CoV-2 variants among the population of the southern part of Poland (Silesia) in the period from September 2021 to August 2022. Our results showed that, like in the rest of Poland or in neighboring countries (Czech Republic, Slovakia), Delta was replaced by the Omicron BA.1 variant, isolated for the first time in December 2021, and subsequently Omicron BA.2 and its derivative subvariants acquiring further mutations. Finally, in August 2022, only the BA.5.2.26 subvariant was present in Silesia. However, we noted differences in the dynamics of emergence and spread of some Omicron subvariants compared to the rest of Poland and the neighboring countries, which may be due to differences in population density or import of the virus from other regions.https://www.mdpi.com/2076-0817/14/7/708SARS-CoV-2 variantsmolecular epidemiologywhole-genome sequencing |
| spellingShingle | Maria Miklasińska-Majdanik Emilia Morawiec Jolanta Bratosiewicz-Wąsik Karol Serwin Adam Pudełko Michał Czerwiński Anna Bednarska-Czerwińska Miłosz Parczewski Tomasz J. Wąsik From Delta to Omicron—Genetic Epidemiology of SARS-CoV-2 (hCoV-19) in Southern Poland Pathogens SARS-CoV-2 variants molecular epidemiology whole-genome sequencing |
| title | From Delta to Omicron—Genetic Epidemiology of SARS-CoV-2 (hCoV-19) in Southern Poland |
| title_full | From Delta to Omicron—Genetic Epidemiology of SARS-CoV-2 (hCoV-19) in Southern Poland |
| title_fullStr | From Delta to Omicron—Genetic Epidemiology of SARS-CoV-2 (hCoV-19) in Southern Poland |
| title_full_unstemmed | From Delta to Omicron—Genetic Epidemiology of SARS-CoV-2 (hCoV-19) in Southern Poland |
| title_short | From Delta to Omicron—Genetic Epidemiology of SARS-CoV-2 (hCoV-19) in Southern Poland |
| title_sort | from delta to omicron genetic epidemiology of sars cov 2 hcov 19 in southern poland |
| topic | SARS-CoV-2 variants molecular epidemiology whole-genome sequencing |
| url | https://www.mdpi.com/2076-0817/14/7/708 |
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