New Coronavirus nucleic acid testing is available without a nostril insertion, and an oropharyngeal swab is available. Nasopharyngeal swabs and oropharyngeal swabs are both valid sampling methods for nucleic acid testing, and they are both done by collecting pharyngeal secretions. Nasopharyngeal swabs are more complicated than oropharyngeal swabs in terms of operational difficulty because the nasopharynx is not visible and requires the sampler to be very experienced to be able to sample effectively without causing discomfort to the person being tested. Oropharyngeal swabbing involves gently scraping secretions from both tonsils and the posterior pharyngeal wall with a sampling swab. Both sampling methods are effective when done properly. Because nasopharyngeal swabs are more difficult and slower than oropharyngeal swabs, oropharyngeal swabs are generally used for mass screening.