Indoor residual spraying (IRS) is the application of insecticide to the inside of dwellings, on walls and other surfaces that serve as an indoor resting place for female anopheles mosquitoes. The residual effect of IRS insecticide eventually kills the mosquitoes within few hours after they come in contact with treated surfaces. This prevents further transmission of malaria by way of shortening the lifespan of the vector as well as reducing the vector density.
Effective implementation of IRS with WHO recommended insecticides is pivotal part of AGAMAL’s malaria vector control strategies. IRS is implemented with the aim of reducing malaria morbidity and mortality and also to help accelerate progress towards elimination of malaria in Ghana.
The potential surfaces/areas to apply IRS are;
• All internal walls of human dwelling places.
• All other rooms within the house and localities that night activities take place.
• Under eaves and ceilings of dwellings and buildings.
• All possible hiding places of mosquitoes within the room such as inside of wardrobes, beneath of tables and beds etc.
Some factors to consider in order to achieve high effectiveness of IRS are;
• choice of insecticide and application procedure
• public engagement and acceptance of spraying
• availability of well-maintained IRS equipment
• adequately trained spraying personnel
• efficient supervision and monitoring
• timing of the climate conditions.
AGAMAL Malaria program has contributed to the massive development of the human capital and these cut across a wide spectrum of subject areas in the various operational areas.
1. IRS Operations: A total of 774 spray operators, 158 team leaders and 33 supervisors were trained in various relevant areas of IRS some of which are standard operating procedures, operator and environmental safety, SBCC techniques among others.
2. Social Behavioral Change Communication (SBCC): the key categories of person trained on SBCC were the SBCC implementers and Community Advocates. A total of 50 implementers and 480 advocates were trained on community entry procedures, refusal management, malaria prevention and vector control methods etc.
3. Middle Level Managers: 48 middle level managers were trained on how to effectively set up, undertake and manage a successful IRS campaign in the operational districts. These are mainly the District Operations Officer, Finance and Administration Officer, Monitoring and Evaluation Officer and SBCC officer.
For more information on IRS: WHO-IRS Manual