Interim estimates of the effectiveness of seasonal trivalent inactivated influenza vaccine in preventing influenza hospitalisations and primary care visits in Auckland, New Zealand, in 2014

SHIVERS investigation team

Research output: Contribution to journalArticle

Abstract

We present preliminary results of influenza vaccine effectiveness (VE) in New Zealand using a case test-negative design for 28 April to 31 August 2014. VE adjusted for age and time of admission among all ages against severe acute respiratory illness hospital presentation due to laboratory-confirmed influenza was 54% (95% CI: 19 to 74) and specifically against A(H1N1)pdm09 was 65% (95% CI:33 to 81). For influenza-confirmed primary care visits, VE was 67% (95% CI: 48 to 79) overall and 73% (95% CI: 50 to 85) against A(H1N1)pdm09.

Original languageEnglish
JournalEurosurveillance
Volume19
Issue number42
ISSN1560-7917
Publication statusPublished - 2014

Keywords

  • Adolescent
  • Adult
  • Aged
  • Case-Control Studies
  • Child
  • Child, Preschool
  • Female
  • Hospitalization/statistics & numerical data
  • Humans
  • Infant
  • Influenza A Virus, H1N1 Subtype/genetics
  • Influenza Vaccines/administration & dosage
  • Influenza, Human/immunology
  • Male
  • Middle Aged
  • New Zealand
  • Primary Health Care/statistics & numerical data
  • Reverse Transcriptase Polymerase Chain Reaction
  • Seasons
  • Sentinel Surveillance
  • Young Adult

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