Pathogen-agnostic testing reveals hidden respiratory threats in negative samples
Medical Xpress
March 3, 2026
The COVID-19 pandemic brought the term "Polymerase Chain Reaction testing" into the mainstream. The PCR method is a type of nucleic acid amplification test (NAAT) that detects a pathogen by finding and amplifying components of its genetic material, and it is widely used to detect SARS-CoV-2.
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Originally published on Medical Xpress on 3/3/2026