Dengue hemorrhagic fever is a severe mosquito-borne viral illness characterized by increased vascular permeability, hypovolemia, and abnormal blood clotting. It is caused by any of four dengue virus types and transmitted by the Aedes aegypti mosquito. Common symptoms include high fever, abdominal pain, vomiting and bleeding. Treatment focuses on fluid replacement and management of shock. Prevention emphasizes eliminating mosquito breeding sites and using protective measures against bites.

1. DENGUE HEMORRHAGIC FEVER By: Dave Jay Sibi. Manriquez BSN, RN

4. Occurrence: Dengue occurrence is sporadic throughout the year. Epidemic usually occurs during the rainy seasons June – November. Peak months are September and October. DHF are observed most exclusively among children of the indigenous population under 15 years of age. Occurrence is greatest in the areas of high Aedis Aegypti prevalence.

5. Notifiable Diseases and Deaths by Cause in the Philippines (2001 – 2004) Source: National Statistics Office 15,838 18,039 13,187 23,235 Dengue Fever Deaths Cases Deaths Cases Deaths Cases Deaths Cases Reported Reported Reported Reported Notifiable Diseases 2004 2003 2002 2001

6. INCIDENCE OF DENGUE HEMORRHAGIC FEVER IN CEBU CITY (YEAR 2007) Source: Department of Health Region VII 2007 … … 416 … … 43, 350 Dengue / DHF female male total female male total Disease: Communicable Year Number of Deaths Number of New Cases Selected

8. Mode of Transmission: Mosquito bite (Aedis Aegypti) Incubation Period: Probably 6 days to one week Period of Communicability: Presumed to be on the 1 st week of illness – when virus is still present in the blood Susceptibility and resistance: All persons are susceptible. Both sexes are equally affected. The age groups predominantly affected are the preschool age and school age. Adults and infants are not exempted. Peak age affected 5-9 years. Susceptibility is universal. Acquired immunity may be temporary but usually permanent.

13. MANAGEMENT

18. PREVENTION

22. - end -