Abstract
The corona virus disease-2019 (COVID-19), also known as the corona pandemic, is an ongoing public health emergency caused by coronavirus 2019 (COVID-19), which is spread by the transmission of coronavirus-2, which causes severe acute respiratory syndrome. The first incidence of COVID-19 in Bangladesh was reported on March 7, 2020. There were 450,273,828 diagnoses worldwide as of March 9, 2022, with 1,948,471 in Bangladesh. To better understand the current state of COVID-19 in Brahmanbaria, a retrospective study was done at Brahmanbaria Medical College with COVID-19-suspected patients. Methods: A total of 600 oropharyngeal and nasopharyngeal swab samples were taken from COVID-19 suspected person, as well as the appropriate proceedings were identified using a reverse transcriptase–polymerase chain reaction assay. We found 193 (32%) of positive cases that represent similarity with national. Among 193 positive cases which 127 (66%) was male that is greater amount from female. Out of 193 positive cases 114 were symptomatic that is 59% and 79 were asymptomatic which is 41%. Asymptomatic infection is more frightening because it is difficult to identify patients. And Odds ratio is 0.9, it indicates a protective effect of vaccination against COVID-19. That reduced risk is 1-odds so will be 10 percent reduced risk of exposure.
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