I. CAUSATIVE AGENT : Dengue Virus
II. EPIDEMEOLOGY : Dengue H-Fever Is transmitted through biting by day-biting, low-flying female mosquitoes (Aedes Aegypti and Aedes Albopictus)
Source: Infected Person • The disease is transmitted when one is bitten by a female mosquito carrier which has bitten another individual with h-fever. Aedes Aegypti and Aedes Albopictus thrives more often on clean stagnant water rather than on dirty canal water. these survive an average of 30 days and deposit up to four (4) batches of eggs numbering 60-100 eggs per batch. These eggs laid on water surface and hatch into larva stage (pitik-pitik) in 5-7 days transform into mature mosquito carrier.
2 Peak Biting Activities / Time: A. At dawn, after sunrise
B. At dusk, one hour before sunset After feeding on the blood of a person infected with dengue virus I.P. = 8-10 Days (4-6 Days. Min 3 Days, Max. 10 Days) is required for the virus to multiply in the salivary gland of the mosquito. The person then become infected and can transmit the virus when that mosquito bites another individual.
Breeding Places / Sites:
• Uncovered Water Storage Tanks
• Flower Vase
• Soft Drink Bottles
• Metal And Plastic Pails For Water Storage
• Bamboo Stumps / Posts
• Leaf Axilla
• Earthen Jars For Water Storage
• Discarded Bottles And Tins
• Clogged Roof Gutters
• Coconut Shells
• Fishing Boats
• Old Tires
• Tall Grasses
III. CLINICAL MANIFESTATIONS:
Grade I : Fever Non-Specific Symptoms:
• Muscle Pains / Body Pains
• Abdominal Pain
• Loss Of Appetite
• (+) Torniquet Test
• Nose Bleeding / Gum Bleeding
• Dark Colored Stools
Grade II : Grade I & Spontaneous Bleeding
Grade III : Grade II & Circulatory Failure
Grade IV : Grade III & Profound Shock
IV. PROGNOSIS: GRADE I : Good
GRADE II : Guarded
GRADE III : Serious (Mortality Rate Is Very High)
V. PREVENTIVE MEASURES:
A. Long Term
4 O’clock Habit
a. Clean House / Building Premises (Indoors & Outdoors) With Breeding Places. - “Operation Kaya-Kulob”.
b. Use Mosquito Nets When Sleeping (Daytime And Nighttime).
c. Avoid The Use Of Aspirin For Fever (If Suspected With Dhf)
d. Use Lotion Or Spray (Mosquito Repellant) If Financial Capable.
e. Use Screens (Windows & Doors) On The House.
B. Short Term
There’s no immunization for DHF. If somebody is suspected with DHF, seek / go to the nearest health center.
4 O’clock Habit (Best Long Term Preventive Measure)
OFFICE OF THE MUNICIPAL HEALTH OFFICER
OFFICE OF THE SANITARY INSPECTOR
LOCAL GOVERNMENT UNIT