Influenza season in Réunion dominated by influenza B virus circulation associated with numerous cases of severe disease, France, 2014

Euro Surveill. 2014 Oct 2;19(39):20916. doi: 10.2807/1560-7917.es2014.19.39.20916.

Abstract

The 2014 seasonal influenza in Réunion, a French overseas territory in the southern hemisphere, was dominated by influenza B. Resulting morbidity impacted public health. Relative to the total number of all-cause consultations over the whole season, the rate of acute respiratory infection (ARI) consultations was 6.5%. Severe disease occurred in 32 laboratory-confirmed influenza cases (31.7 per 100,000 ARI consultations), 16 with influenza B. The observed disease dynamics could present a potential scenario for the next European influenza season.

MeSH terms

  • Acute Disease
  • Adolescent
  • Adult
  • Age Distribution
  • Aged
  • Child
  • Child, Preschool
  • Disease Outbreaks*
  • Female
  • Humans
  • Infant
  • Infant, Newborn
  • Influenza A Virus, H1N1 Subtype / isolation & purification
  • Influenza A Virus, H3N2 Subtype / isolation & purification
  • Influenza B virus / isolation & purification*
  • Influenza, Human / diagnosis
  • Influenza, Human / epidemiology*
  • Influenza, Human / virology
  • Male
  • Middle Aged
  • Respiratory Tract Infections / epidemiology*
  • Respiratory Tract Infections / etiology
  • Reunion / epidemiology
  • Risk Factors
  • Seasons
  • Sentinel Surveillance*
  • Severity of Illness Index
  • Young Adult