Influenza vaccine effectiveness among Japanese elementary school students (2017/18 season, pilot study)
Not Applicable
- Conditions
- Influenza
- Registration Number
- JPRN-UMIN000030705
- Lead Sponsor
- Osaka City University
- Brief Summary
Vaccine effectiveness (any doses) for all influenza: -7% (95%CI:-386% to 76%) for influenza type A: not applicable for influenza type B: 35% (95%CI:-249% to 88%)
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete: follow-up complete
- Sex
- All
- Target Recruitment
- 193
Inclusion Criteria
Not provided
Exclusion Criteria
Subjects are excluded if they: - have a history of anaphylaxis after influenza vaccination - had influenza antivirals administered for the current ILI - experienced the current ILI during the hospitalization - are institutionalized - are non-residents in Fukuoka prefecture, Japan
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Influenza confirmed by rapid diagnostic testing
- Secondary Outcome Measures
Name Time Method