One of the major health problems during rainy season is the incidence of Dengue Hemorrhagic Fever. It occurs in all age groups. This disease (transmitted by Aedes, a day-biting mosquito) is preventable but is prevalent in urban centers where population density is high, water supply is inadequate (resulting to water storage and a good breeding place for the vector), and solid waste collection and storing are also inadequate.

The thrust of the Dengue Control Program is directed towards community-based prevention and control in endemic areas.

Major strategy is advocacy and promotion, particularly the Four O’clock Habit which was adopted by most LGUs. This is a nationwide, continuous and concerted effort to eliminate the breeding places of Aedes aegypti. Other initiatives are the dissemination of IEC materials and tri-media coverage.