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In page Infant mortality:

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Reducing the chances of babies being born at low birth weights and contracting pneumonia can be accomplished by improving air quality.[citation needed] Improving hygiene can prevent infant mortality. Home-based technology to chlorinate, filter, and use solar disinfection for organic water pollution could reduce cases of diarrhea in children by up to 48%.[3][4][5] Improvements in food supplies and sanitation have been shown to work for the most vulnerable populations in the US, including among African Americans.[6]