Negative impact of prior influenza vaccination on current influenza vaccination among people infected and not infected in prior season: A test-negative case-control study in Japan

• Published in: Vaccine Vol. 35; no. 4; pp. 687 - 693
• Main Authors: Saito, Nobuo, Komori, Kazuhiro, Suzuki, Motoi, Morimoto, Kounosuke, Kishikawa, Takayuki, Yasaka, Takahiro, Ariyoshi, Koya
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier Ltd 23.01.2017; Elsevier Limited
• Subjects: Adolescent; Adult; Aged; Aged, 80 and over; Allergy and Immunology; Case studies; Case-Control Studies; Child; Child, Preschool; Confidence intervals; Data analysis; Diagnostic tests; Epidemics; experimental design; Female; Health insurance; Hospitals; Hospitals, Community; Humans; Infant; Infant, Newborn; Infections; Influenza; Influenza Vaccines - administration & dosage; Influenza Vaccines - immunology; Influenza, Human - epidemiology; Influenza, Human - immunology; Influenza, Human - prevention & control; Japan; Japan - epidemiology; Local government; Male; Middle Aged; monitoring; odds ratio; Past influenza exposure; Patients; people; Population; Prospective Studies; Repeated vaccination; risk; Seasons; Treatment Outcome; vaccination; Vaccine effectiveness; Vaccines; Young Adult; Japan; INW, Japan; Past influenza exposure; Repeated vaccination; Influenza; Vaccine effectiveness

Accumulating evidences indicate that repeated influenza vaccination has negative impact on the vaccine effectiveness (VE). However no published studies considered past influenza infection when assessing the VE of repeated vaccination. Prospective surveillance was conducted from 2009 to 2012 at a com...