Superiority of Reverse‐Transcription Polymerase Chain Reaction to Conventional Viral Culture in the Diagnosis of Acute Respiratory Tract Infections in Children

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Abstract
We compared the rates of detection of respiratory viruses by reverse-transcription polymerase chain reaction (RT-PCR) and by conventional viral culture in 668 combined nasal and throat samples from a prospective, multicenter, populationbased study of acute respiratory tract infections among hospitalized children aged <5 years. RT-PCR increased the yield of viral identification by 2-fold, compared with that of culture alone. The increased sensitivity of viral detection by RT-PCR will yield better estimates of the population burden of viral respiratory infections.