Abstract

Background: The study was conducted in the various districts of Punjab, Pakistan, to ascertain the incidence and epidemiology of SARS-CoV-2 variants circulating in the population during the fifth wave of COVID-19.Method: A total of 9603 nasopharyngeal swab samples of suspected patients were collected from the different districts of Punjab from December 2021 to April 2022. In the BSL-3 facility, an auto-extractor (Uni-medica) was used to extract the RNA genome. Viral detection and quantification were performed using real-time reverse transcriptase PCR. Multiplex PCR was used to target different mutations of the spike protein in order to identify SARS-CoV-2 variants.Results: 711 samples were found to be positive from a total of 9603. The Omicron variant of concern (VOC) was the predominant lineage of SARS-CoV-2 circulating at the time of sampling. Ninety-one percent proportion of COVID-19 was caused by the Omicron, followed by the wild variant (3.80%) and Delta (68.11%). Men were found to have a greater Omicron prevalence (47.96%) than women (42.05%). Furthermore, compared to older individuals (32.07%) and younger kids (10.55%), adults had the higher percentage of Omicron (47.39%).Conclusion: This study brought attention to the Omicron variant's circulation in Punjab Province, Pakistan, during the COVID-19 fifth wave.Keywords: Coronavirus; Omicron; Delta; Variant of Concern; Multiplex PCR; Punjab; Pandemic

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