Emerging Infectious Diseases (Jan 2016)

Hemagglutinin Gene Clade 3C.2a Influenza A(H3N2) Viruses, Alachua County, Florida, USA, 2014–15

  • John Lednicky,
  • Nicole M. Iovine,
  • Joe Brew,
  • Julia Loeb,
  • Jonathan D. Sugimoto,
  • Kenneth H. Rand,
  • J. Glenn Morris

DOI
https://doi.org/10.3201/eid2201.151019
Journal volume & issue
Vol. 22, no. 1
pp. 121 – 123

Abstract

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Influenza A(H3N2) strains isolated during 2014–15 in Alachua County, Florida, USA, belonged to hemagglutinin gene clade 3C.2a. High rates of influenza-like illness and confirmed influenza cases in children were associated with a decrease in estimated vaccine effectiveness. Illnesses were milder than in 2013–14; severe cases were concentrated in elderly patients with underlying diseases.

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