ABSTRACT
OBJETIVO. Describir la frecuencia de virus respiratorios y características clínicas en niños con cuadros respiratorios de un hospital de tercer nivel en México. MATERIAL Y MÉTODOS. Se incluyeron niños con diagnóstico de infección respiratoria y un resultado positivo por inmunofluorescencia de enero 2004 a octubre 2006. RESULTADOS. De 986 muestras nasofaríngeas, 138 (14 por ciento) fueron positivas. La frecuencia fue: 80 por ciento virus sincicial respiratorio (VSR), 8 por ciento parainfluenza 1, 5 por ciento parainfluenza3, 2 por ciento adenovirus, 2 por ciento influenza A, 1 por ciento parainfluenza 2 y 1 por ciento influenza B. CONCLUSIONES. La frecuencia de virus respiratorios fue de 14 por ciento. El VSR se identificó asociado con más frecuencia, a neumonía y bronquiolitis en menores de 3 años.
OBJECTIVE. To describe the frequency of respiratory viruses and clinical characteristics in children with respiratory signs and symptoms in a tertiary care center in Mexico. MATERIAL AND METHODS. Patients with a clinical diagnosis of respiratory infection and a positive immunofluorescence result (Light Diagnostics) from January 2004 to October 2006 were included. RESULTS. From the 986 nashopharyngeal samples, 138 (14 percent) were positive by immunofluorescence. The frequency was: 80 percent RSV, 8 percent parainfluenza 1, 5 percent parainfluenza 3, 2 percent adenovirus, 2 percent influenza A, 1 percent parainfluenza 2 and 1 percent influenza B. CONCLUSIONS. Respiratory viruses were detected in 14 percent of samples tested. RSV was the most frequently identified virus and was associated with pneumonia and bronchiolitis in children younger than 3 years old.
Subject(s)
Adolescent , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Hospitals, University/statistics & numerical data , Respiratory Tract Infections/epidemiology , Virus Diseases/epidemiology , Adenoviridae Infections/epidemiology , Bronchiolitis/epidemiology , Bronchiolitis/virology , Cross-Sectional Studies , Fluorescent Antibody Technique, Indirect , Influenza, Human/epidemiology , Mexico/epidemiology , Nasopharynx/virology , Paramyxoviridae Infections/epidemiology , Pneumonia, Viral/epidemiology , Pneumonia, Viral/virology , Respiratory Syncytial Virus Infections/epidemiology , Respiratory Tract Infections/virology , Retrospective Studies , Urban Population/statistics & numerical dataABSTRACT
OBJECTIVE: To describe the frequency of respiratory viruses and clinical characteristics in children with respiratory signs and symptoms in a tertiary care center in Mexico. MATERIAL AND METHODS: Patients with a clinical diagnosis of respiratory infection and a positive immunofluorescence result (Light Diagnostics) from January 2004 to October 2006 were included. RESULTS: From the 986 nashopharyngeal samples, 138 (14%) were positive by immunofluorescence. The frequency was: 80% RSV, 8% parainfluenza 1, 5% parainfluenza 3, 2% adenovirus, 2% influenza A, 1% parainfluenza 2 and 1% influenza B. CONCLUSIONS: Respiratory viruses were detected in 14% of samples tested. RSV was the most frequently identified virus and was associated with pneumonia and bronchiolitis in children younger than 3 years old.
