Modified technique for obtaining nasopharyngeal swab in a suspected COVID-19 patient.

During this swab testing, it produces symptoms such as mild discomfort, sneezing, and coughing of COVID19 patients, which not only produces droplets and aerosol but also directly cause respiratory tract infections in health-care professionals.[[2]] This can lead to an increased risk of patient cross-infection and environmental contamination.[[3]] All health-care professionals before nasopharyngeal sampling must wear personal protective equipment. The gold standard method for diagnosing COVID-19 is real-time fluorescence-based real-time polymerase chain reaction of the upper respiratory tract samples, which includes throat swab, nasal swab, and lower respiratory tract samples like bronchoalveolar lavage.[[1]] The nucleic acid testing of COVID-19 mainly involves the nasopharyngeal swabs. [Extracted from the article]