Tuesday, March 1, 2011

Epidemiology of Vector Borne Diseases

*   Objectives of the Vector Borne Disease Control Programme (VBDCP)
Ø  Prevent the occurrence of dengue cases
Ø  To control dengue outbreaks
Ø  Prevent reoccurrence of Dengue Fever in priority localities
Ø  Improve Malaria prevention and control activities, especially foreigners
Ø  Prevent the spread of Malaria to the local population

*   Strategies of this programme
Ø  Formulations of new policies besides reviewing and updating existing policies from time to time.
Ø  Planning, specifying targets and identifying resources that are needed.
Ø  Setting standards, determining indicators and preparation of guidelines.
Ø  Coordinating vector control activities throughout the country related to approaches and implementation methods.
Ø  Identifying and obtaining resources such as spraying equipment, insecticides and entomological equipments.
Ø  Monitoring activities carried out by the state and other agencies.
Ø  Evaluation of vector control activities.
Ø  Providing technical advice pertaining to vector control strategies and activities.
Ø  Obtaining co-operation from agencies involved in vector control activities.
Ø  Identifying training needs, planning and coordinating training courses with relevant institutions.
Ø  Planning, coordinating and co-operating with relevant authorities in carrying out operational research.


*   Organization chart of VBDCP

*   Flow of information from peripheral to ministry level
Case notification methods:
ü  E-notificasi
ü  E-denggue
ü  Vecpro
ü  Phone notification
ü  Notification form

*  Statistics Data in Kota Setar DHO

Dengue (2006-2010)                  Malaria (2008-2010)           
2006- 610 cases                            2008- 4 cases
2007- 856 cases                            2009- 4 cases
2008- 286 cases                            2010- 4 cases
2009- 179 cases                            2011(7th ew)- 1 case
2010- 192 cases
2011(5th ew)- 32 cases

Filariasis no outbreak for the pass 5 years.
  Dengue control activity 

                a) AEDES SURVEY
                b) ABATING                      early morning activity
                c) LARVACIDING
                d) LAW ENFORCEMENT
                e) FOGGING
                f) ULV                                late evening activity

   Malaria control activity
Ø   Monitoring areas abundant with foreign workers- especially Depot Tahanan Imigresen Belantik
Ø  BFMP slides for case detection
Ø  ACD/ PCD
Ø  Focal spraying- Poison is K- Othrine and is available in 2 forms ; the powder form and the liquid form( commonest).
Ø  Medicated Nettings- soaked with K-Othrine and dried up

   Filariasis control activity
Ø  The strategies for controlling Filariasis are the same as for Malaria except that the fogging done for Filariasis is usually done at 5 something in the evening.
Ø  The blood smears for Filariasis can only be taken from 9pm- 12 pm as the antigen only appears in the bloodstream during that time.


   Law enforcement

Regarding the vector control there has been a law which is enacted, Destruction of  Disease-Bearing Insects Act 1975 (Act 154) Akta Pemusnah Serangga Pembawa  Penyakit 1975 (Pindaan 2000).

1.  If there is breeding of Aedes mosquitoes, the premise owner can be compounded immediately not more than RM 500- Seksyen 23 Akta Pemusnah Serangga Pembawa Penyakit 1975 (Pindaan 2000).

2.  If the premise owner fails to pay the compound then the person can be charged as the following:-
          - For the 1st offence, fine not more than RM 10,000 or imprisonment not more than 2 years or   
            both (Seksyen 23 (a)).
         - For the 2nd offence, fine not more than RM 50,000 or imprisonment not more than 5 years or  
            both (Seksyen 23 (b)).



  Supervision, monitoring and evaluation

Ø  Data on vector control activities collected were shared through weekly, monthly, quarterly and half yearly returns( Districts          State            National)
Ø  Operation room are operational during outbreak
Ø  Data on control activities are monitored, analyzed and evaluated daily at the operation room at all levels until the outbreak is over
Ø  Officers of VBDCP were required to supervise outbreak control activities in the field to ensure these activities were carried effectively and efficiently.

 by Gomalaa Devee Rajaram




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