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A cluster of measles linked to an imported case, Finland, 2017

Elina Seppälä1, Viktor Zöldi1,2, Sakari Vuorinen3

  • 1Department of Health Security, National Institute for Health and Welfare (THL), Helsinki, Finland.

Euro Surveillance : Bulletin Europeen Sur Les Maladies Transmissibles = European Communicable Disease Bulletin
|August 26, 2017
PubMed

Insights

Measles cases in Finland were linked to a single imported strain (serotype D8). High vaccination coverage and healthcare provider awareness are vital to prevent future measles outbreaks.

Area of Science:

  • Epidemiology
  • Virology
  • Public Health

Background:

  • Measles outbreaks pose a significant public health risk, necessitating robust surveillance and control measures.
  • Maintaining high vaccination rates is critical for achieving herd immunity and preventing disease transmission.

Purpose of the Study:

  • To report on a measles outbreak in Finland during the summer of 2017.
  • To characterize the genetic makeup of the measles virus involved in the outbreak.
  • To emphasize the importance of public health interventions in controlling measles transmission.

Main Methods:

  • Case ascertainment through national surveillance systems.
  • Genomic sequencing of measles virus isolates.
  • Contact tracing and risk assessment for exposed individuals.

Main Results:

  • Six measles cases (one imported, five secondary) were identified between June and August 2017.
  • All sequenced measles virus isolates were identical, belonging to genotyped D8.
  • A significant number of individuals were potentially exposed, requiring extensive public health engagement.

Conclusions:

  • The outbreak was successfully contained through the coordinated efforts of public health authorities.
  • The findings underscore the need for sustained high measles-vaccination coverage to prevent imported cases from causing secondary transmissions and larger outbreaks.
  • Enhanced awareness among healthcare providers is essential for early detection and rapid response to potential measles cases.
Keywords:
measlesoutbreaksvaccine-preventable diseases

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