Mumps complications and effects of mumps vaccination, England and Wales, 2002-2006

Chee Fu Yung1, Nick Andrews, Antoaneta Bukasa

  • 1Health Protection Agency Centre for Infections, London, UK. cheefu.yung@gmail.com

Insights

Mumps vaccination significantly reduced the risk of severe mumps complications like orchitis and meningitis during a large outbreak. One dose of the measles, mumps, and rubella vaccine offered protection against hospitalization and disease severity.

Area of Science:

  • Epidemiology
  • Public Health
  • Infectious Diseases

Background:

  • The 2004-2005 mumps outbreak in England and Wales represented a significant public health challenge.
  • Understanding mumps complications and the impact of vaccination is crucial for effective control strategies.

Purpose of the Study:

  • To assess mumps complications during a major outbreak in England and Wales.
  • To evaluate the association between mumps vaccination and disease severity.

Main Methods:

  • Analysis of hospital admission data and enhanced mumps surveillance.
  • Comparison of complication rates during the outbreak versus non-outbreak periods.
  • Statistical analysis of vaccination's effect on hospitalization and specific complications.

Main Results:

  • The outbreak saw increased hospitalizations for orchitis, meningitis, and pancreatitis.
  • Vaccination with one dose of measles, mumps, and rubella vaccine reduced the risk of hospitalization (OR 0.54), mumps orchitis (OR 0.72), and mumps meningitis (OR 0.28).
  • Enhanced surveillance indicated lower hospitalization and complication rates compared to routine data.

Conclusions:

  • Mumps vaccination provides a protective effect against severe disease and its complications.
  • Vaccination is critical for assessing the overall impact of mumps control strategies.
  • Public health interventions should consider the role of vaccination in mitigating outbreak severity.

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