पोलीमरेज श्रृंखला अभिक्रिया (पीसीआर) testing remains one of the most accurate methods for detecting viral and bacterial pathogens. हालाँकि, 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 …