In collaboration with the Philippine National Epidemiology Center (NEC) and the Philippines-AFRIMS Virology Research Unit, Armed Forces Research Institute of Medical Sciences, the EDE program, which was developed by Johns Hopkins UniversityÁApplied Physics Lab, was introduced in the Philippines to augment the data analysis capability of the Philippine Integrated Disease Surveillance and Response (PIDSR) System. Reported significant increases in the number of suspect dengue cases/outbreaks at the municipality, provincial and regional level, which were reported to and investigated by NEC from July 1, 2011, to August 31, 2011, were used as a reference point. A defined period, 30 days prior to the date when the event was officially reported, was retrospectively analyzed. The day when an EDE alert was first triggered and the number of EDE alerts detected during this period were described. Since NEC analyzes data by morbidity week, municipalities that were detected to be above the NEC alert or epidemic threshold during a randomly selected morbidity week (week 31; reporting date of August 6, 2011) were compared with the number of EDE alerts triggered during the past 7 days before the report date of morbidity week 31.