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02 January 2023 : Database Analysis  

A Retrospective Population Study of 385 191 Positive Real-Time Reverse Transcription–Polymerase Chain Reaction Tests For SARS-CoV-2 from a Single Laboratory in Katowice, Poland from April 2020 to July 2022

Emilia Morawiec1ABEF*, Anna Bednarska-Czerwińska1B, Adam Pudełko2B, Anna Strychalska2B, Mateusz Broncel2B, Dorota Sagan3F, Andrzej Madej4E, Agata Jasińska-Balwierz4F, Rafał Staszkiewicz1E, Dawid Sobański1E, Dariusz Boroń1D, Filip Pokusa5F, Beniamin Grabarek1CDEF

DOI: 10.12659/MSM.938872

Med Sci Monit 2023; 29:e938872

Abstract

BACKGROUND: This retrospective population study identified 385 191 positive real-time reverse transcription–polymerase chain reaction (RT-PCR) tests for the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from a single laboratory in Katowice, Poland, from April 2020 to July 2022.

MATERIAL AND METHODS: The material was nasopharyngeal, nasopharyngeal swab or bronchial lavage, and bronchoalveolar lavage (BAL) to confirm or exclude SARS-CoV-2 infection with the RT-PCR technique. Personal data are use according to the Provisions on the Protection of Personal Data by the Gyn-Centrum laboratory.

RESULTS: In 9 months of 2020, the number of SARS-CoV-2 results was 88 986; in 2021, it was 168 439, and in the first 7 months of 2022, it was 12 786. In 2020, the highest number of positive results was recorded in the third quarter (83 094 cases); 2021, in the 1st, 2nd, and 4th quarters (58 712; 37 720; and 71 753 cases, respectively), and in 2022, in the 1st quarter (127 613 cases) of the year. A positive result was observed more often in women and people aged 30-39, followed by those 40-49 years. Patients aged 10-19 years comprised the smallest population of SARS-CoV-2-positive cases.

CONCLUSIONS: In the Polish population studied, from April 2020 to July 2022, the detection rates of SARS-CoV-2 positivity were significantly higher for women than for men and in the 30-49 age group for both sexes. Also, the infection detection rate of 385 191 out of 1 332 659 patient samples, or 28.9%, supports that the Polish society adhered to public health recommendations for infection control during the COVID-19 pandemic.

Keywords: SARS-CoV-2 Variants, Adult Multisystem Inflammatory Disease, COVID-19 Related

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Editorial

01 January 2023 : Editorial  

Editorial: Current Status of Two Adjuvanted Malaria Vaccines and the World Health Organization (WHO) Strategy to Eradicate Malaria by 2030

Dinah V. Parums
Science Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.939357

Med Sci Monit 2023; 29:e939357

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750