11/13/2013 2:30:00 PM

Bayer and IVCC collaboration delivers new cost-effective tool for malaria vector control

Bayer CropScience and the Innovative Vector Control Consortium (IVCC) are pleased to announce that the World Health Organization Pesticide Evaluation Scheme (WHOPES) has issued a recommendation for a new polymer-enhanced, long-lasting Indoor Residual Spray for malaria vector control; the result of a collaborative research project between Bayer and the IVCC.

Since 2007, Bayer CropScience has been working with its partners in the IVCC to develop longer-lasting indoor residual spray formulations and new active ingredients to manage insect resistance in malaria vector control. The new polymer-enhanced formulation of deltamethrin offers a residual effectiveness of 6 months. The World Health Organisation has recognised this unique formulation as having a longer residual lifespan than other pyrethroid insecticide formulations. (Refer list of WHO recommended insecticides for indoor residual spraying against malaria vectors here).
There are many countries in Sub-Saharan Africa where the transmission period for malaria can be longer than six months. In these situations, when indoor residual spraying is regarded as an appropriate intervention, a product with longer-lasting efficacy can be very important, reducing the frequency of spraying required and saving considerable costs for malaria control programs.
All insecticide sprays for malaria control are required to be evaluated and recommended by the WHO for effectiveness and safety. Until now the only product formally recognized to have residual effectiveness exceeding six months has been DDT. However, as a Persistent Organic Pollutant (POP), the production and use of DDT is strictly restricted. This new product therefore represents a potentially viable, cost-effective alternative to DDT for malaria control programs. Market introduction across Sub-Saharan Africa and other malaria endemic areas is expected to occur during 2014 once relevant national regulatory approvals are in place.