An increase in the number of mumps cases in the Czech Republic, 2005-2006

N Boxall1, M Kubinyiova, V Príkazský

  • 1National Institute of Public Health, Prague, Czech Republic.

Insights

An increase in mumps cases occurred in the Czech Republic from 2005-2006, primarily affecting adolescents. Many cases were in individuals who had received two doses of the measles, mumps, and rubella (MMR) vaccine.

Area of Science:

  • Epidemiology
  • Public Health
  • Vaccinology

Background:

  • The Czech Republic has maintained a two-dose measles, mumps, and rubella (MMR) vaccination program since 1987.
  • A notable increase in mumps cases was observed starting in October 2005, following the last reported outbreak in 2002.

Purpose of the Study:

  • To analyze the magnitude of the mumps increase between January 2005 and June 2006.
  • To identify the most affected demographic groups to inform prevention and control strategies.

Main Methods:

  • Utilized routinely collected surveillance data from January 2005 to June 2006.
  • Analyzed case numbers, incidence rates by region and age, and vaccination status.

Main Results:

  • 5,998 mumps cases were reported, peaking in May 2006.
  • Highest incidence was in the Zlin region (118.6/100,000) and the 15-19 year age group.
  • 87% of cases in the highest incidence group had received two MMR vaccine doses; average age of vaccinated cases was 14.5 years.

Conclusions:

  • The study highlights a significant mumps resurgence in the Czech Republic.
  • The high proportion of vaccinated individuals among cases warrants further investigation into vaccine effectiveness and potential contributing factors.

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