Vaccine effectiveness of respiratory infectious diseases in Japan

Vaccine effectiveness of respiratory infectious diseases in Japan - Vaccine effectiveness of respiratory infectious diseases in Japan

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000055893

Enrollment

10000

Registered

2024-10-21

Start date

2024-10-02

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

COVID-19, Flu

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Individuals 18 years of age or older who visit medical facilities with symptoms of suspected respiratory tract infection and individuals 60 years of age or older who are hospitalized with symptoms of suspected respiratory tract infection.

Exclusion criteria

Exclusion criteria: Those refusing to participate in the study Those with an unknown history of COVID-19 vaccination and an unknown history of flu vaccination

Design outcomes

Primary

Measure	Time frame
The effectiveness of COVID-19 vaccine and flu vaccine will be assessed using a test-negative design case-control study (partially using a case-control study) in individuals 18 years of age or older who visit medical facilities with symptoms of suspected respiratory tract infection and in individuals 60 years of age or older who are hospitalized with symptoms of suspected respiratory tract infection.	—

Measure

Time frame

The effectiveness of COVID-19 vaccine and flu vaccine will be assessed using a test-negative design case-control study (partially using a case-control study) in individuals 18 years of age or older who visit medical facilities with symptoms of suspected respiratory tract infection and in individuals 60 years of age or older who are hospitalized with symptoms of suspected respiratory tract infection.

—

Countries

Japan

Contacts

Public ContactHaruka Maeda

Institute of Tropical Medicine, Nagasaki University Department of Respiratory Infections

mharuka@nagasaki-u.ac.jp0958197842

Outcome results