Viral etiology of acute respiratory infections in children in Southern Iran

Introduction: Prevalence of influenza A virus (Flu-A), respiratory syncytial virus (RSV), and human metapneumovirus (hMPV) w as assessed in children with acute respiratory infections (ARIs). Methods: Nasopharyngeal aspirates and throat swabs were subjected to real-time polymerase chain reaction (PCR) to detect RSV and Flu-A and to conventional PCR to detect hMPV. Results: Of the 156 children assessed, 93 (59.6%) carried at least one virus, with 35.9% positive for RSV. 14.1% for hMPV, and 9.6% for Flu-A. The prevalence of co-infections was 2.6%. Conclusions: The high detection rate may reflect increased sensitivity of real-time PCR compared to traditional PCR and viral culture.