Prenatal Presentation by Guam EHDI by Guam CEDDERS Marie Wusstig, Guam CEDDERS Training Associate and Guam EHDI Hearing Screening Facilitator (standing), talked about the Guam Early Hearing Detection and Intervention (EHDI) project and the services provided during the Prenatal Presentation held at the Mangilao Public Health on February 10. Guam Early Hearing Detection & Intervention