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Rotavirus vaccination one year on

Daniel A Belshaw1, David J Muscatello, Mark J Ferson

  • 1Centre for Epidemiology and Research, NSW Department of Health, North Sydney, New South Wales. daniel.belshaw@ncahs.health.nsw.gov.au

Communicable Diseases Intelligence Quarterly Report
|January 2, 2010
PubMed

Insights

The Australian rotavirus vaccine program, started in 2007, significantly reduced rotavirus infections and gastroenteritis ED visits in young children by 2008. This suggests the vaccine is effective in protecting infants and limiting virus spread.

Area of Science:

  • Public Health
  • Vaccinology
  • Epidemiology

Background:

  • Rotavirus is a leading cause of severe gastroenteritis in young children globally.
  • The rotavirus vaccine was introduced into the Australian National Immunisation Program in July 2007.
  • Monitoring the vaccine's early impact on disease burden is crucial.

Purpose of the Study:

  • To assess the early impact of the rotavirus vaccine on rotavirus disease.
  • To evaluate the vaccine's effect on the burden of gastroenteritis in young children in New South Wales.
  • To determine if infant vaccination reduces rotavirus circulation in older children.

Main Methods:

  • Utilized surveillance data from New South Wales laboratories for rotavirus isolates.
  • Analyzed New South Wales Emergency Department (ED) visits for gastroenteritis-related diagnoses.
  • Prepared weekly time series data for children aged <15 months and 15 months to 5 years between 2001 and 2008.

Main Results:

  • Observed a substantial decline in laboratory-confirmed rotavirus infections in 2008 compared to previous years.
  • Noted a significant reduction in gastroenteritis-related ED visits in both age groups during 2008.
  • Preliminary evidence suggests a decrease in rotavirus disease burden following vaccine introduction.

Conclusions:

  • The rotavirus vaccination program in New South Wales shows preliminary evidence of effectiveness.
  • Infant immunization against rotavirus may reduce its circulation among the wider child population.
  • Continued surveillance is important to confirm long-term vaccine impact.

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