Staff members at the National Center for Occupational Health and Infection Control (COHIC) are engaged in a growing number of projects that seek to:
Below is a partial list of key projects the COHIC is currently working on. For more information on these or other projects, contact the COHIC.
Project BREATHE is an interagency effort of the U.S. Federal government, chaired by the Department of Veterans Affairs. COHIC seeks to shepherd one or more new respirators for health care workers to the U.S. marketplace. Prototype development is in process, based on 28 performance requirements drafted by the interagency working group and in collaboration with one or more U.S. respirator manufacturers. Read the report from the interagency working group (538 KB, PDF) to learn more.
This multi-center, randomized clinical trial will assess the relative effectiveness of N95 respirators, surgical masks, and current practices in protecting health care workers (HCWs) against influenza and other respiratory illnesses. The current protocol would enroll 2200 plus HCWs over three influenza seasons in order to detect whether there is a statistically significant difference in protective effect. Despite recently published data, questions remain about protective value of surgical masks versus N95 respirators.
This project will simulate the release and dissemination of infectious contagion in a recently vacated hospital. The study will disperse inert surrogates from an index ‘patient’ to other areas of the hospital via the heating, ventilation and air-conditioning (HVAC) system, elevators and other airborne transport mechanisms. Researchers then will observe tracer gas and aerosol dissemination within the test spaces, adjoining spaces, corridors, floors above and below the test spaces, and elevator access areas as a function of particle size, concentration and travel distance in relation to time.
Activities representing the movement of health care workers, operations staff and visitors will also be simulated (for instance, by opening and closing of doors, movement of elevators, and other means). In addition, ventilation air supplied to individual room fan coil units on one floor will be reduced while holding exhaust constant, creating negative air pressure in all general patient rooms with respect to patient corridors to simulate temporary isolation capacity.