In 2008, 228 cases of dengue fever were reported in Calasiao, Pangasinan, Philippines, the highest number since 1998. The local government declared a dengue fever outbreak in August 2008 and implemented response activities including education campaigns, larviciding, and fogging. These efforts aimed to prevent further spread of the disease despite challenges from floods and other health issues. The outbreak declaration was lifted in November once case numbers decreased below epidemic thresholds.