Monitoring of influenza vaccine effectiveness among Japanese children: a pilot study during the 2013/14 season

Monitoring of influenza vaccine effectiveness among Japanese children: a pilot study during the 2013/14 season - Monitoring of influenza vaccine effectiveness among Japanese children: a pilot study during the 2013/14 season

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000015263

Enrollment

1200

Registered

2014-10-01

Start date

2014-01-20

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Influenza

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Children with influenza-like illness (ILI) who visited one of four collaborating pediatric clinics in Osaka prefecture, Japan, during the 2013/14 influenza season 2) Aged less than 6 years at the time of visit 3) Within 7 days of onset of ILI 4) Aged 6 months or more, as of September 1st, 2013

Exclusion criteria

Exclusion criteria: Subjects are excluded if they: - are previously diagnosed as any types of laboratory-confirmed influenza in the 2013/14 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 the Osaka prefecture, Japan

Design outcomes

Primary

Measure	Time frame
Laboratory-confirmed influenza	—

Countries

Japan

Contacts

Public ContactWakaba Fukushima

Osaka City University Faculty of Medicine Department of Public Health

wakaba@med.osaka-cu.ac.jp06-6645-3756

Outcome results