Where Local Health Departments FitFederal surveillance depends on state, county, and city health departments doing the collection. An approach linking human, animal, and environmental health data, based on the fact that most emerging infections originate in animals. Eighteen experts in public health, animal health, infectious diseases, medicine, and academic science, convened in April and May 2025. HHS leadership of public health emergencies has been on GAO's High Risk List since 2022. Sign up for local health department alerts, check official sources during outbreaks, and cooperate with case interviews if contacted.