Based on Emergency Department (ED) Visits view quarterly trends in overdose rates for Any Drug Overdoses, Any Opioid Overdoses and Heroin Overdoses at the state and county level. Please see Overdose Data Technical Notes for additional details: http://www.health.pa.gov/Your-Department-of-Health/Offices%20and%20Bureaus/PaPrescriptionDrugMonitoringProgram/Documents/OverdoseDataTechnicalNotes.pdf
Syndromic surveillance is the analysis of medical data to detect or anticipate disease outbreaks. According to a CDC definition, "the term 'syndromic surveillance' applies to surveillance using health-related data that precede diagnosis and signal a sufficient probability of a case or an outbreak to warrant further public health response.