Nylon Flocked Swabs Versus Rayon Swabs for Respiratory Viral Recovery of Pediatric Nasopharyngeal Specimens: Which Is Better?


Background: When diagnosing respiratory viral illness using nasopharyngeal swabs, specimen quality has always been a concern for the Clinical Virology laboratory and the clinician. The gold standard, the M4 swab, has been used as the universal collecting device. A new flocked swab designed to optimize both the collection and transport of respiratory samples appears to yield more virus. Increased viral recovery suggests we may be able to identify more patients with influenza and respiratory syncytial virus (RSV).