Between 2000 and 2015, it achieved the highest average annual reduction in both the under-five mortality rate and the maternal mortality ratio in the world. The UN estimates that 590,000 children have been saved.
"We had four top killers - malaria, diarrhoea, pneumonia, and malnutrition - diseases which can be treated by simple intervention. So we selected 45,000 community health workers at each village so when the children are sick, instead of spending one or two hours going to a health facility, the community health workers can give the treatment in less than 10 minutes.
"They are elected by the community. The only criteria we give is they can read and write. We give them basic training like how to screen for malaria, how to take temperatures, how to check respiration. For complicated treatment, they are obliged to transfer patients to the health facility."
The workers are not given a regular salary, but are paid for what they achieve: