A worldwide ecological assessment has found that rates of pneumonia among young children in different countries are linked with the use of solid fuels.
The findings suggest that interventions aimed at increasing the use of efficient stoves will reduce indoor pollution and significantly improve the health of children around the globe.
Roberto Accinelli, the lead author of the study, said: "The harm to health is completely preventable by using improved stoves that cost about $30 each."
The study was published in the Respirology journal.