Nosocomial respiratory syncytial virus infections in the palivizumab-prophylaxis era with implications regarding high-risk infants

Am J Infect Control. 2014 Sep;42(9):991-5. doi: 10.1016/j.ajic.2014.05.030.

Abstract

Background: Although respiratory syncytial virus (RSV) infection continues to be a leading cause of infant hospitalization with a high transmission rate, recent data on nosocomial RSV infection are scarce. This study investigated the clinical and epidemiologic characteristics of nosocomial RSV infection in the palivizumab-prophylaxis era.

Methods: The database of a tertiary pediatric medical center was searched for all hospitalized patients with RSV-positive respiratory disease in 2008-2010. Data were compared between patients with community-associated and nosocomial disease, and the qualification of the latter group for palivizumab was evaluated.

Results: Of the 873 children identified, 30 (3.4%) had a nosocomial infection. This group accounted for 0.06% of all admissions during the study period. The nosocomial infection group had higher rates of preterm birth and severe underlying disease than the community-associated RSV group and a longer mean hospital stay. The nosocomial infection group also had higher rates of intensive care unit admission and mechanical ventilation. Although 73% had underlying conditions, most (80%) did not qualify for RSV immunoprophylaxis, including 7 children (23%) with immune deficiency.

Conclusion: Nosocomial RSV infection is a significant cause of morbidity among hospitalized infants, especially those with comorbidities and lengthy hospital stay, and is associated with a complicated clinical course. In addition to strict infection-control measures, extending palivizumab prophylaxis to additional selected high-risk populations should be considered.

Keywords: Bronchiolitis; Health care–associated infections; Infants; Infection control; Palivizumab.

MeSH terms

  • Antibodies, Monoclonal, Humanized / therapeutic use*
  • Antiviral Agents / therapeutic use*
  • Child, Preschool
  • Cross Infection / drug therapy*
  • Cross Infection / prevention & control*
  • Female
  • Hospitalization
  • Humans
  • Infant
  • Infant, Newborn
  • Infection Control
  • Intensive Care Units
  • Length of Stay
  • Male
  • Palivizumab
  • Respiratory Syncytial Virus Infections / drug therapy*
  • Respiratory Syncytial Virus Infections / prevention & control*
  • Respiratory Tract Infections / drug therapy*

Substances

  • Antibodies, Monoclonal, Humanized
  • Antiviral Agents
  • Palivizumab