Differences between the course of SARS-CoV-2 infections in the periods of the Delta and Omicron variants dominance in Poland
作者： Krystyna Dobrowolska , Michał Brzdęk , Dorota Zarębska-Michaluk , Piotr Rzymski , Magdalena Rogalska
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摘要: INTROduCTION Up to now, COVID‑19 caused more than 6 million deaths worldwide. So far, 5 variants of concerns have been identified, with Delta and Omicron being the subject of our analysis.
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