title: [Pathogen detection of 1 613 cases of hospitalized children with community acquired pneumonia].
abstract: OBJECTIVE
  To investigate the distribution of pathogens of children with community acquired pneumonia (CAP) from the Chongqing area.
  
  
  METHODS
  Nasopharyngeal specimens and blood specimens of 1 613 children with CAP were collected between January 2014 and December 2014 for bacterial culture and detection of 7 respiratory viruses and antibodies against Mycoplasma pneumoniae (MP).
  
  
  RESULTS
  The overall positive rate of bacteria was 50.22% (810 cases). Hemophilus parainfluenzae (40.8%), Streptococcus pneumonia (29.7%) and Moraxelle catarrhalis (7.3%) were the predominant ones. Among the viruses, the top detected virus was respiratory syncytial virus (RSV, 58.3%), followed by parainfluenza virus type3 (17.4%) and adenovirus (14.3%). A total of 481 cases (29.82%) were MP-positive. The co-infection rate was 32.18% (519 cases), and the mixed infections of bacteria and viruses were common (47.4%).
  
  
  CONCLUSIONS
  RSV and Hemophilus parainfluenzae are the major pathogens of CAP in children from the Chongqing area. MP is also an important pathogen. The co-infection of bacteria and viruses is prevalent.
authors.affiliation: Deparment of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China. maggiechangshu@126.com.
authors.forename: Yi
authors.initials: Y
authors.lastname: Peng
authors.forename: Chang
authors.initials: C
authors.lastname: Shu
authors.forename: Zhou
authors.initials: Z
authors.lastname: Fu
authors.forename: Qu-Bei
authors.initials: QB
authors.lastname: Li
authors.forename: Zheng
authors.initials: Z
authors.lastname: Liu
authors.forename: Li
authors.initials: L
authors.lastname: Yan
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D017714:Community-Acquired Infections / Q000209:etiology*; D005260:Female; D044135:Haemophilus parainfluenzae / Q000302:isolation & purification; D006760:Hospitalization; D006801:Humans; D007223:Infant; D008297:Male; D009177:Mycoplasma pneumoniae / Q000302:isolation & purification; D011014:Pneumonia / Q000209:etiology*; D012136:Respiratory Syncytial Viruses / Q000302:isolation & purification