DENGUE PREVENTION AND CONTROL PROGRAM

Region VII, Central Visayas

Dengue Regional Data

DepED Incidence Cases

Division 2012 No. of Cases

2012 No. of Deaths

Jan.-Mar. 2013 Cases

June-July 2013 Cases

2013 No. of Deaths

Bais City 41 0 6 8 0

Bayawan City 44 0 6 2 0

Bogo City 139 0 48 0 0

Bohol 663 2 243 99 0

Carcar City 5 0 3 0 0

Cebu City 127 3 29 11 0

Cebu Province

28-E,10-S 0 3-E, 2-S 0 0

Danao City 18 0 7 7 0

Dumaguete City

35-E, 8-S 3 9-E,1-S 1-E 0

Guihulngan City

19 0 10 18 0

Division 2012 No. of Cases

2012 No. of Deaths

Jan.-Mar. 2013 Cases

June-July 2013 Cases

2013 No. of Deaths

Lapulapu City 112 3 8 10 0

Mandaue City 65 2 0 7 0

Naga City 4 0 2 2 0

Negros Oriental

No data 80 25 0

Siquijor 59 0 3 9 0

Tagbilaran City

8 3 3 6 1 (Jan.-Mar.)

Talisay City 33-E, 18-S

1 0 2-E 0

Tanjay City 4 0 55 12 0

Toledo City City

107 1 23 0 0

Total 1,547 18 541 219 1

Sources: Reports coming from District Supervisors/School Heads, PHO/CHO/RHU Data of ages 5-15, Hospital Admission Data of ages 5-15

- an infectious tropical disease caused by the dengue virus, transmitted through a bite of a mosquito by the genus Aedes.

THE DISEASE:

A Viremia (presence of viruses in the bloodstream), resulting to febrile disease afflicting both children and adults, causing HEMORRHAGE and frequently DEATH, if left untreated.

*DENGUE VIRUS

* There is no commercially available vaccine.

* Prevention and control are sought by reducing the habitat, controlling the number of mosquitoes, and limiting exposures to bites.

* THE VECTOR:AEDES AEGYPTI MOSQUITO

The Primary Carrier of the Dengue Virus

* LIFE CYCLE (10-12 days)Eggs- Black and oval in shape- Laid singly above water

surfaces of containers- Without float- Viability: 6 months to 1 year

due to the presence of chorion

2 - 3 days

Larva:- Feeding stage- Breeds in clean and non-

polluted water- Short and stout siphon with

one pair of hair tuft- Rests at an angle to the water

surface

6 - 8 days Pupa-Non-feeding stage-Breeding trumpet is long, slender with narrow opening

1 - 2 days

Adult-Maxillary pulps shorter than probosis

-Wings uniformly grayish black

-Body and legs are black with distinctive white patches throughout

-Thorax has markings

*Vector Biology

Aedes aegypti Aedes albopictus

General characteristics

• Primary vector• Involve in cases of

epidemics• Urbanized areas• Lives indoors

• Secondary vector

• Maintains the virus in the environment

• Rural areas

• Lives outdoors

Breeding habitat • Confined to artificial containers indoors

• Prefers to breed outdoor, in natural containers

Resting habits • Rests in cool, dark corners of the house

• Rests outdoors in clearings and vegetations

Vector Biology

*MORPHOLOGY

Aedes aegypti Aedes albopictus

Size - 3-4 mm - same

Color - dark brown to black - same

Thorax - lyre-shaped white marks or scales

- single white marks

Abdomen - with white scales - with white and dark marks

Legs - with white marks - same

MORPHOLOGY

*VECTOR CHARACTERISTICS• BITING HABITS

• “Daybiters” with two peaks of biting time:*1 to 2 hours after sunrise*1 to 2 hours before sunset•Only female mosquitoes bite because of the requirement of blood for oviposition•Males do not bite but feed on plant juices and nectar of flowers•Man is the preferred host but in his absence, lower vertebrates serve as substitute

* VECTOR CHARACTERISTICS

• FLYING HABITS

• Do not fly great distances • Farthest flight distance is within 200 to

400 meters radius from their breeding places

• Adults found around 50 meters from the breeding sources

*VECTOR CHARACTERISTICS• BIONOMICS

• At temperatures <10oC and >40oC, no developmental process takes place

• Females mates with male only once• Blood meal takes place after 48 hours from

emergence and after mating for egg production

• Oviposition takes place about 2 to 5 days from blood engorgement

• Prefers dark-colored background for oviposition

• Lays egg 3 to 4 times in its lifetime–60 to 100 eggs per batch

• Survival potential: 20-30 days

1x Mosquito lays 300 eggs in its lifespan of 21 days.

½ of those 300 eggs are female, that being 150 females.

By the second generation in 42 days, 150 females should have laid another 150 females each which equates to 22,500 females.

By the third generation, in 63 days we have an approximate total of 3,375,000 female mosquitoes from that one single larva.

*CALCULATIONS

*AEDES AEGYPTI MOSQUITOS

* THE TARGET:AEDES AEGYPTI LARVA

THE TARGET:AEDES AEGYPTI LARVA

*LARVA: MOST VULNERABLE STAGE IN ITS LIFE CYCLE

•Rest at an angle to the water surface• Favorable temp.: 16 – 240C• Does not mature: 12 and 390C• Affected by chemical factors:

* 1 – 2.3 % salt kills the larvae * 50% sea water kills larvae in 24 hrs. * Pure sea water kills larvae in 2- 4 hrs. * Soap causes drowning by preventing larvae to obtain air * Oil kills by asphyxiation by the film formed, cuts contact with the air

DENGUE- FREE

PHILIPPINES MOVEMENT

IPI

Region VII

*DENGUE –FREE PHILIPPINES MOVEMENT A COMMUNITY EFFORT THAT ADVOCATES THE USE OF SAFE, SCIENTIFIC AND COST- EFFECTIVE MEANS TO CONTROL/ ELIMINATE DENGUE IN THE PHILIPPINES.

*OUR MOTIVATION: A DENGUE FEVER PATIENT AND THOUSANDS LIKE HER(NOTE: PUBLISHED WITH PERMISSION FROM FATHER)

*DENGUE PREVENTION AND CONTROL4

School Dengue Brigade

4:00 O’clock Habit

Search and Destroy, one of the 4S’s Kontra Dengue, through clean-up drive every 4:00PM

School-Based O/L Trap Program

Installation of Olyset Nets from DOH

*DENGUE PREVENTION AND CONTROL:

LARVICIDING*An ecologically safe preventive method used to interrupt the development of larva and pupa into adult mosquitoes.

THE AEDES MOSQUITO( CARRIER)IS MOST VULNERABLE IN THE LARVA STAGE WHEN THEY CAN BE LOCATED AND DESTROYED

THE LARVICIDE CONTROL USING THE LARVICIDE TEMEPHOS IS A WORLD HEALTH ORGANIZATION RECOMMENDED METHOD

LARVICIDE CONTROL IS APPROVED BY PHIL. DEPT. OF HEALTH

SUCCESSFULLY USED IN COUNTRIES AS THAILAND AND INDIA

*WHY LARVICIDE AS CHOICE OF CONTROL?

*WHAT IS TEMEPHOS?*Chemical Name: 0,0’(THIODI-4,1

PHENYLENE) BIS (O,0-DIMETHYLPHOSPHOROTHIOATE(56)

*ORGANOPHOSPHATE Insecticide used as agricultural chemical for the control of LARVA of Mosquitos, Black Fly and Midge in orchards that is Non-Toxic to humans, mammals, birds and fish at recommended concentrations

*TOXICITY INFORMATION OF TEMEPHOS ASG1*

III. HEALTH HAZARD INFORMATION

* OSHA STANDARD: None established 

* NIOSH RECOMMENDED LIMIT: None established

* ACGIH RECOMMENDED LIMIT: TWA (Time Weighted Average) = 10 mg/m3;

STEL (Short Term Exposure Limit) = 20 mg/m3 (deleted) (15c).

* TOXICOLOGY

* A. ACUTE TOXICITY

* DERMAL: LD50 (24 hr) = 1300-1930 mg/kg (rabbit); >4000 mg/kg (rat)(62).

 

* ORAL: LD50 = 8600 mg/kg (male rat); 13000 mg/kg (female rat) (62).

LD50 = 8600 mg/kg (male rat, technical material) (56) 

* INHALATION: Acute inhalation (rat), >25 mg/m3 (56).

*CLINICAL TRIAL TOXICITY OF TEMEPHOS ASG1

* B. SUBACUTE AND CHRONIC TOXICITY:

* In 2-yr feeding trials rats receiving 300 mg/kg diet showed no

observable clinical effect. No toxic symptom was felt by humans

receiving 256 mg/man for 5 d, or 64 mg/man for 28 d (62).

* All animal species tested tolerated 10 mg/kg without clinical

effect, and 1 mg/kg without effect on cholinesterase activity (15b).

* Experience in the field for a period of more than one year has

confirmed that 1 mg/l in drinking water is without effect (15b).

* APPLY TEMEPHOS(TEMPO,ABATE) TO STAGNANT WATER AT

ONE(I)GRAM PER SQUARE METER

OF SURFACE AREA REGARDLESS OF DEPTH

*METHODOLOGY

* WHERE TO APPLY

STAGNANT WATER MOSQUITO BREEDING SITES:

* ROOF GUTTERS(SANDAYONG)

* DECORATIVE POOLS

* WATER CONTAINERS

* WATER CISTERNS

* FLOWER POT

* USED TIRES

*Mosquito Breeding Site

*HOW TO MAKE ABATE “GRENADE”

* BEFORE APPLICATION OF TEMEPHOS

BEFORE APPLICATION OF TEMEPHOS

* AFTER APPLICATION OF TEMEPHOS

AFTER APPLICATION OF TEMEPHOS

*DO NOT APPLY* RUNNING WATER AS

CANALS ,CREEKS

* MANGROOVE AREAS

* SEA WATER

* FISH PONDS

*DO NOT APPLY

* PLAN OF ACTION*CONDUCT 4 QUATERLY LARVICIDE

DRIVES

APPLICATION DATES:

* 1ST AUGUST17-18, 2013

* 2ND OCTOBER 26-27, 2013

* 3RD JANUARY 4-5, 2014

* 4TH APRIL 12-13,2014

* USE MOSQUITO REPELLENTS TO PROTECT YOURSELF

* USE HAND GLOVES IN APPLYING THE LARVICIDE

* COLLECT AND RETURN EMPTY, USED AND UNUSED ABATE SACHETS FOR TRACKING OF SUPPLY

* ACCOMPLISH THE PERFORMANCE REPORT SHEET AND SUBMIT TO DEPED R.O.7

*INSTRUCTIONS BEFORE AND AFTER APPLICATION

* PERFORMANCE REPORT SHEET AND TRACKING OF SUPPLY

* Modified DepED Report FormatSchool ________________________________

District___________________________

Division________________________

Submitted by: ____________________________

Larvicide Temephos

1SG

Received(No./Date)

Utilized(No./Date)

Type of Water

Unused/Returned(No./Date)

100 gms/sachet

50 gms/sachet

30 gms/sachet

25 gms/sachet

10 gms/sachet

5 gms/sachet

Total:

Thank you!