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Herd immunity after two years of the universal mass vaccination program against rotavirus gastroenteritis in Austria

Maria Paulke-Korinek1, Michael Kundi, Pamela Rendi-Wagner

  • 1Institute of Specific Prophylaxis and Tropical Medicine, Medical University Vienna, Vienna, Austria.

Vaccine
|February 16, 2011
PubMed

Insights

Austria

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Public Health

Background:

  • Austria pioneered a universal infant vaccination program against rotavirus gastroenteritis (RV-GE).
  • Rotavirus gastroenteritis is a significant cause of childhood hospitalization.

Purpose of the Study:

  • To evaluate the impact of Austria's universal rotavirus vaccination program on RV-GE hospitalization rates.
  • To assess the potential for herd immunity in the vaccinated and unvaccinated populations.

Main Methods:

  • Analysis of hospital-based surveillance data from 2001-2009.
  • Comparison of RV-GE incidence rates before and after vaccine implementation.

Main Results:

  • A significant decrease in RV-GE hospitalizations was observed in 2009 compared to 2008 and the pre-vaccination period (2001-2005).
  • Reduced hospitalization rates were noted across all age groups, including those not directly vaccinated, indicating herd immunity.
  • The highest disease burden in 2009 was among infants under three months, highlighting the need for early vaccination.

Conclusions:

  • Universal rotavirus vaccination in Austria effectively reduced RV-GE hospitalizations.
  • The program demonstrated herd immunity effects, benefiting unvaccinated children.
  • Early initiation of rotavirus immunization is crucial for maximum public health impact.

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