Monitoring of influenza vaccine effectiveness among Japanese children (2014/15 - 2016/17 season)
Not Applicable
- Conditions
- Influenza
- Registration Number
- JPRN-UMIN000016012
- Lead Sponsor
- Osaka City University Graduate School of Medicine
- Brief Summary
Vaccine effectiveness (2 doses) 2014-15 season: 50% 2015-16 season: 60% 2016-17 season: 41%
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete: follow-up continuing
- Sex
- All
- Target Recruitment
- 2778
Inclusion Criteria
Not provided
Exclusion Criteria
Subjects are excluded if they: - are aged less than 6 months, as of the last September 1st before each season - 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 Osaka/Fukuoka prefecture, Japan
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method aboratory-confirmed influenza
- Secondary Outcome Measures
Name Time Method