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Influenza-Related Parotitis during a Large Mumps Outbreak - Arkansas, 2016-2017

Sarah M Labuda1,2, Cheng Yang2, Carol Daniels2

  • 1Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, USA.

Archives of Clinical Case Reports
|April 28, 2020
PubMed

Insights

Influenza A virus caused some cases of parotitis (swollen glands) during a large mumps outbreak in Arkansas. This finding suggests influenza should be considered in non-mumps parotitis diagnoses.

Area of Science:

  • Epidemiology
  • Virology
  • Public Health

Background:

  • Arkansas faced a significant mumps outbreak between August 2016 and July 2017.
  • During this period, cases of parotitis (swollen glands) that tested negative for mumps were also observed.

Purpose of the Study:

  • To investigate potential alternative causes of parotitis during a mumps outbreak.
  • To determine the prevalence of influenza A virus in patients presenting with parotitis.

Main Methods:

  • A subset of 215 patient samples from the outbreak period were randomly selected.
  • Influenza A virus PCR testing was performed on the selected samples.

Main Results:

  • Nineteen out of 215 randomly selected samples (9%) tested positive for influenza A virus.
  • This indicates a notable presence of influenza A in patients with parotitis.

Conclusions:

  • Influenza A virus should be considered a potential cause of parotitis, especially during mumps outbreaks.
  • This finding has implications for differential diagnosis and public health surveillance of parotitis.
Keywords:
InfluenzaInfluenza-Related ParotitisMumpsParotitisPublic Health

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