title: Eight Year Prospective Study of Adenoviruses Infections in Hospitalized Children. Comparison with Other Respiratory Viruses.
abstract: Human adenovirus (HAdV) cause upper and lower respiratory tract infections. However, there are few large prospective studies focused on HAdVs acute infections requiring hospitalization. From 2005 to 2013 a prospective study was conducted on children admitted with acute respiratory infections. Specimens of nasopharyngeal aspirate were taken for virological study by PCR and clinical data was recorded. HAdV specimens were genotyped. Frequency and clinical course of HAdV infections were compared with RSV, rhinovirus (RV), human bocavirus (HBoV) and influenza in the same population. HAdV was detected in 403 cases of 2371 confirmed viral infections (17.2%) , of which 154 were single virus infections (38%). We genotyped 154 HAdVs. The most frequent genotypes were HAdV-3 (24%), HAdV-6 (21%), and HAdV-5 (20%). A total of 262 children had fever (64.9%); 194 suffered hypoxia (48%), and 147 presented infiltrate in chest x-rays (36.4%). The most frequent diagnoses were recurrent wheezing or asthma (51.7%), bronchiolitis (18.3 %), and pneumonia (11.9%), and 46 (11.4%) episodes required prolonged hospitalization (>7 days) due to the severity. Adenovirus single infections were compared with single infections of 598 RSV, 494 RV, 83 influenza and 78 HBoV. Significant clinical differences were found between HAdV, RSV and RV infections.
authors.affiliation: Pediatrics Department, Severo Ochoa Hospital, Leganés, Madrid, Spain.
authors.forename: Cristina
authors.initials: C
authors.lastname: Calvo
authors.affiliation: Pediatrics Department, Severo Ochoa Hospital, Leganés, Madrid, Spain.
authors.forename: María Luz
authors.initials: ML
authors.lastname: García-García
authors.affiliation: Pediatrics Department, Severo Ochoa Hospital, Leganés, Madrid, Spain.
authors.forename: Rosa
authors.initials: R
authors.lastname: Sanchez-Dehesa
authors.affiliation: Pediatrics Department, Severo Ochoa Hospital, Leganés, Madrid, Spain.
authors.forename: Cristina
authors.initials: C
authors.lastname: Román
authors.affiliation: Pediatrics Department, Severo Ochoa Hospital, Leganés, Madrid, Spain.
authors.forename: Ana
authors.initials: A
authors.lastname: Tabares
authors.affiliation: Respiratory Virus and Influenza Unit, National Microbiology Center (ISCIII), Madrid, Spain.
authors.forename: Francisco
authors.initials: F
authors.lastname: Pozo
authors.affiliation: Respiratory Virus and Influenza Unit, National Microbiology Center (ISCIII), Madrid, Spain.
authors.forename: Inmaculada
authors.initials: I
authors.lastname: Casas
mesh_terms: D000256:Adenoviridae / Q000235:genetics / Q000378:metabolism; D000257:Adenoviridae Infections / Q000453:epidemiology* / Q000235:genetics; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006760:Hospitalization; D056661:Human bocavirus / Q000235:genetics / Q000378:metabolism; D006801:Humans; D007223:Infant; D008297:Male; D009975:Orthomyxoviridae / Q000235:genetics / Q000378:metabolism; D009976:Orthomyxoviridae Infections / Q000453:epidemiology* / Q000235:genetics; D010322:Parvoviridae Infections / Q000453:epidemiology* / Q000235:genetics; D010850:Picornaviridae Infections / Q000453:epidemiology* / Q000235:genetics; D018357:Respiratory Syncytial Virus Infections / Q000453:epidemiology* / Q000235:genetics; D012136:Respiratory Syncytial Viruses / Q000235:genetics / Q000378:metabolism; D012189:Retrospective Studies; D012229:Rhinovirus / Q000235:genetics / Q000378:metabolism