A Randomised Controlled Trial of Face Masks and Hand Hygiene in Reducing Influenza Transmission in Households

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT00425893

Enrollment

6069

Registered

2007-01-23

Start date

2007-02-28

Completion date

2008-11-30

Last updated

2012-04-13

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

Conditions

Influenza

Keywords

influenza, masks, transmission, hand hygiene, non-pharmacologic interventions

Brief summary

This study will test the effectiveness of face masks and hand cleaning in preventing the spread of influenza within households

Detailed description

Randomised controlled trial of surgical masks and alcohol hand wash among approximately 6069 Hong Kong residents who have a household member diagnosed with influenza. Influenza in index member and secondary infection will be documented with rapid influenza tests and PCR. Minimal risk to participants.

Interventions

BEHAVIORALhand hygiene

alcohol-based hand wash

OTHERhealth education

Proper nutrition, etc.

DEVICEface masks

face masks

Study design

Allocation

RANDOMIZED

Intervention model

SINGLE_GROUP

Primary purpose

PREVENTION

Masking

NONE

Eligibility

Sex/Gender

ALL

Healthy volunteers

Yes

Inclusion criteria

* Member of family with influenza infected member

Exclusion criteria

* Age less than 2 yr

Design outcomes

Primary

Measure	Time frame
secondary influenza infection	7 days

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 5, 2026