The Department of Health - Center for Health Development IV - CALABARZON is pleased to accept proposals that are aligned with the Dengue Immunization for CY 2019. Kindly e-mail your proposals not later than August 30, 2019 at This email address is being protected from spambots. You need JavaScript enabled to view it.. We encourage interested proponents to follow the prescribed format available at http://region4a.healthresearch.ph/index.php/downloads-2/category/28-doh-center-for-health-development-iv-calabarzon-call-for-papers. Below is the list of approved research topics.