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Multicentered studyof viral acute lowerrespiratoryinfections inchildren from fourcities of Argentina,1993–1994* Guadalupe CarballalCristina VidelaM. Alejandra Espinosa2001 год

Multicentered study of viral acute lower respiratory infections in children from four cities of Argentina, 1993–1994*
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Аннотация: Abstract This study describes the first multicentered study of acute lower respiratory infection viral etiology in young children from four different geographical areas of Argentina. A total of 1,278 children under 5 years of age, hospitalized in primary care centers from Buenos Aires, Córdoba, Santa Fé and Mar del Plata cities during a 2‐year period were studied (1993–1994). Nasopharyngeal aspirates were investigated for respiratory syncytial virus (RSV), adenovirus, parainfluenza, and influenza A and B viruses by indirect immunofluorescence. Out of the patients studied, 946 (74%) were under 1 year of age. Viruses were detected in 399 patients (32%). RSV was observed in 25.3% of the samples, representing 78.2% of all viral positive cases. Adenoviruses were detected in 2.5% of the cases, parainfluenza in 2.2%, influenza A in 2.1%, and influenza B in 0.2%. Compared with other viruses, the higher RSV frequency was statistically significant ( P < 0.000). Most RSV cases were detected between May and September with a significant peak in July ( P < 0.000). Pneumonia was observed in 46% of the patients, bronchiolitis in 41% and other entities in 13%. The case fatality rate observed during the 2 year study was 0.73%. Most of the above respiratory viruses were detected in the four cities, however, the frequency of RSV and influenza were different in the southern city. J. Med. Virol. 64:167–174, 2001. © 2001 Wiley‐Liss, Inc.
Год издания: 2001
Авторы: Guadalupe Carballal, Cristina Videla, M. Alejandra Espinosa, Vilma Savy, Osvaldo Uez, María Delfina Sequeira, Violeta Knez, Paula V. Requeijo, Clara Riva Posse, I Miceli
Издательство: Wiley
Источник: Journal of Medical Virology
Ключевые слова: Respiratory viral infections research, Parvovirus B19 Infection Studies, Immunodeficiency and Autoimmune Disorders
Другие ссылки: Journal of Medical Virology (HTML)
PubMed (HTML)