The document discusses several innovative private sector strategies that are providing affordable healthcare to low-income communities. It describes franchised healthcare networks in India and Africa that leverage partnerships and scale to reduce costs. It also outlines enterprises producing low-cost consumer products for disease prevention, such as cleaner cooking stoves, long-lasting insecticide-treated bed nets, and micronutrient-fortified foods and salts. The models demonstrate that private sector solutions using local resources and partnerships can successfully deliver essential healthcare and preventative services to those living at the base of the pyramid.