Revista chilena de infectología
versión impresa ISSN 0716-1018
MARTINEZ, Pamela et al. Viral respiratory co-infections in pediatric patients admitted for acute respiratory infection and their impact on clinical severity. Rev. chil. infectol. [online]. 2012, vol.29, n.2, pp. 169-174. ISSN 0716-1018. http://dx.doi.org/10.4067/S0716-10182012000200008.
Introduction: Respiratory viruses are the leading cause of acute respiratory tract infection (ARI) in children. It has been reported that viral respiratory co-infection could be associated with severe clinical course. Objectives: To describe the frequency of viral co-infection in children admitted for AlRI and evaluate whether this co-infection was associated with more severe clinical course. Patients and Methods: Prospective, descriptive study in pediatric patients who were hospitalized for ARI, with molecular detection of at least 1 respiratory virus in nasopharyngeal sample studied by PCR-Microarray for 17 respiratory viruses. Results: 110 out of 147 patients with detection of > 1 respiratory virus were included. Viral co-infection was detected in 41/110 (37%). 22/110 children (20%) were classified as moderate to severe clinical course and 88/110 (80%) were classified as mild clinical course. In the group of moderate to severe clinical course, viral respiratory co-infection was detected in 6/22 (27.3%), compared to 35/88 (39.8 %) in the mild clinical course group. No statistically significant difference was found regarding the presence of co-infection between groups (p = 0.33). Conclusions: We detected high rates of viral co-infection in children with ARI. It was not possible to demonstrate that viral co-infections were related with severe clinical course in hospitalized children.
Palabras clave : Viral respiratory infection; acute respiratory infection; severity; viral co-infection.