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The effects of gargling or consuming tea on preventive effect of influenza infections and acute upper respiratory tract infections -A systematic review and meta-analysis.

The effects of gargling or consuming tea on preventive effect of influenza infections and acute upper respiratory tract infections -A systematic review and meta-analysis. - The effects of gargling or consuming tea on preventive effect of influenza infections and acute upper respiratory tract infections

Status
Active, not recruiting
Phases
Unknown
Study type
Unknown
Source
JPRN
Registry ID
JPRN-UMIN000044273
Enrollment
Unknown
Registered
2021-05-20
Start date
2021-05-20
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 infections/acute upper respiratory infections

Interventions

None listed

Sponsors

Kao Corporation
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Randomized controlled trial 2) Prospective cohort study

Exclusion criteria

Exclusion criteria: 1) Observational study and case 2) Systematic review and meta-analysis. 3) Not study in human.

Design outcomes

Primary

MeasureTime frame
Incidence of influenza and acute upper respiratory tract infections—

Countries

Japan

Contacts

Public ContactMai Umeda

Kao Corporation Biological Science Research

umeda.mai@kao.com+81-356-30-7260

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026