title: 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.
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.
authors.affiliation: The University of Auckland, Auckland, New Zealand.
authors.forename: N
authors.initials: N
authors.lastname: Turner
authors.forename: N
authors.initials: N
authors.lastname: Pierse
authors.forename: Q S
authors.initials: QS
authors.lastname: Huang
authors.forename: S
authors.initials: S
authors.lastname: Radke
authors.forename: A
authors.initials: A
authors.lastname: Bissielo
authors.forename: M G
authors.initials: MG
authors.lastname: Thompson
authors.forename: H
authors.initials: H
authors.lastname: Kelly
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D053118:Influenza A Virus, H1N1 Subtype / Q000235:genetics / Q000276:immunology* / Q000302:isolation & purification; D007252:Influenza Vaccines / Q000008:administration & dosage* / Q000276:immunology; D007251:Influenza, Human / Q000276:immunology / Q000517:prevention & control* / Q000821:virology; D008297:Male; D008875:Middle Aged; D009520:New Zealand; D011320:Primary Health Care / Q000706:statistics & numerical data*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012621:Seasons; D018571:Sentinel Surveillance; D055815:Young Adult
chemical_list: D007252:Influenza Vaccines