The appropriate procedure for obtaining a nasopharyngeal swab specimen, as shown in the video by Marty et al. (published on April 17 at NEJM.org), 1 is of paramount importance. Proper collection of a ...

For diagnostic testing, proper sample collection and transport play a pivotal role in the accurate and timely identification of a pathogen. When testing for respiratory viruses, the gold standard for ...

Nasopharyngeal swabs have been used for decades to diagnose respiratory infections, including COVID-19. A trained healthcare professional takes the sample by inserting a long swab through the nose to ...

Collection of specimens from the surface of the respiratory mucosa with nasopharyngeal swabs is a procedure used for the diagnosis of Covid-19 in adults and children. 1-4 The procedure is also ...