Influenza Clinical Trial
Official title:
Stepped-wedge Design Study of Point-of-care Molecular Testing for Influenza and Treatment With Baloxavir for Prevention of Secondary Transmission of Influenza in Homeless Shelters in Seattle, WA
This study is a stepped-wedge cluster-randomized trial of on-site rapid testing and treatment for influenza in homeless shelters within the Seattle area to determine whether this strategy reduced the incidence of influenza in the shelter environment.
The study will be conducted over the course of two flu seasons, and all shelters will start with routine surveillance of influenza using mid-turbinate nasal swabs for sample collection and RT-PCR testing. Shelters will be randomized to implement a test-and-treat strategy at different months throughout flu season, treating individuals who present ARI symptoms or new or worsening cough within 2 days (48 hours). Shelters will continue routine surveillance until all offer the test-and-treat strategy. Eligible individuals will be tested on site with a point-of-care molecular influenza test and, if positive, offered antiviral treatment. Individuals with 3-7 days of symptoms, or who choose not to participate in the intervention strategy, will still be eligible for participation in the routine surveillance. Our primary hypothesis is that implementation of a point-of-care diagnostic and antiviral treatment intervention among sheltered individuals experiencing homelessness will reduce the incidence of influenza within this population over the course of a flu season. A process evaluation will also be conducted to explore the feasibility of point-of-care testing implementation in this population. ;
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