Indoor residual spraying involves the targeted application of insecticides to indoor surfaces where disease-transmitting mosquitoes’ rest. This aims to reduce the mosquito population, interrupt disease transmission, and protect communities from vector-borne diseases.
Indoor residual spraying can drastically lessen the burden of vector-borne diseases, particularly in emergency situations where other vector control tools may not be as effective. For example, in Syria, we have successfully implemented indoor residual spray programmes that target diseases other than malaria, such as leishmaniasis. By engaging communities, raising awareness, and effectively implementing IRS, cases of disease have decreased.
In emergency contexts like South Sudan and northern Mozambique, indoor residual spraying has been key to control malaria among internally displaced persons (IDPs) and refugees. By targeting indoor resting sites of mosquitoes in temporary shelters and crowded camps, indoor residual spraying has reduced malaria transmission.
Our work is adapted to specific contexts and together with local stakeholders we can expand our reach, providing life-saving interventions to those most in need. Through community engagement and training local teams, people are empowered to manage their own health.
In southern Angola indoor residual spraying is used both as a tool for malaria control and elimination. By applying indoor residual spraying in areas where malaria is endemic, there has been a significant decline in malaria cases and progress towards elimination goals. Integrating indoor residual spraying with other interventions, such as larval source management and long-lasting insecticide-treated nets, further increases its effects.
The success of indoor residual spraying campaigns relies on collaborating with local communities and stakeholders. By combining indoor residual spraying with other control measures and investing in research, development and innovations, we can optimise operations and improve the sustainability of programmes.
