relevant important sub fields include environmental health community health behavioral health health economics public policy mental health health education health politics occupational safety disability dental public health gender issues health sexual reproductive health ref name ref public health together primary care secondary care tertiary care part country 's overall health care system public health implemented surveillance cases health indicators promotion healthy behaviors common public health initiatives include promotion hand washing breastfeeding delivery vaccinations suicide prevention smoking cessation obesity education increasing healthcare accessibility distribution
Applied science Medicine and health Public health