Reação em Cadeia da Polimerase (PCR) testing remains one of the most accurate methods for detecting viral and bacterial pathogens. No entanto, even the most advanced PCR assay depends on one critical factor: high-quality specimen collection. Choosing the best sterile nasal swabs for PCR testing helps maximize sample recovery, preserve nucleic acid integrity, and improve diagnostic reliability. Why Sterile Nasal Swabs Matter for …