title: Respiratory viruses, such as 2009 H1N1 influenza virus, could trigger temporal trends in serotypes causing pneumococcal disease.
abstract: In order to determine if the novel influenza A(H1N1)pdm09 was associated with temporal trends of main serotypes causing invasive pneumococcal disease (IPD), we studied 384 episodes of IPD in <18-year-old patients from 2007 to 2012. The number of IPD episodes diagnosed during the 2009 pandemic period meant almost one-third of all the episodes diagnosed in the five included influenza periods (51/156). The number of IPD episodes diagnosed during the 2009 pandemic period meant almost one-third of all the episodes diagnosed in the five included influenza periods. Most of them occurred in <5-year-old children. Serotype 1 was the main serotype detected over the period, except for the 2009 pandemic, when it practically disappeared. Seasonality and viral infections could trigger temporal trends of serotypes causing IPD.
authors: Infectious Diseases Research Unit, Department of Paediatrics, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain.
authors: C
authors: C
authors: Launes
authors: J-J
authors: JJ
authors: García-García
authors: M
authors: M
authors: Triviño
authors: N
authors: N
authors: Peris
authors: R
authors: R
authors: Pallarés
authors: C
authors: C
authors: Muñoz-Almagro
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007251:Influenza, Human / Q000453:epidemiology* / Q000821:virology*; D008297:Male; D009975:Orthomyxoviridae / Q000145:classification* / Q000302:isolation & purification; D011008:Pneumococcal Infections / Q000453:epidemiology* / Q000382:microbiology*; D065288:Serogroup; D013296:Streptococcus pneumoniae / Q000145:classification* / Q000302:isolation & purification
keywords: Influenza; Streptococcus pneumoniae; pneumococcal disease; respiratory virus; serotypes