“According to the World Bank, hygiene promotion is the most cost-effective health action to reduce disease.1 As of 2020, 2.3 billion people lacked basic hygiene services (handwashing facility with soap and water), and 1.6 billion people had access to handwashing facilities that lacked water or soap.2 Research shows that washing hands with soap and water could reduce deaths from diarrheal disease by up to 50%.3″ .”
Centers for Disease Prevention and Control (CDC)