By: Kerry Gallo, Children Without Worms

World Water Week in Stockholm presents an opportunity for those of us working in the field of neglected tropical diseases (NTDs) to communicate a clear and unified message to the water sector: by working together, we can make a difference in the lives of millions of people around the world.

Treatment through preventive chemotherapy alone does not break the transmission cycle of many NTDs. Many require environmental improvements to water and sanitation systems coupled with behavior change to promote lasting effects on the health of communities. Effective control strategies for several NTDs such as soil-transmitted helminthiasis (STH), trachoma, and schistosomiasis require that communities have access to water and latrines to break the cycle of infection.

Washing foods and hands with soap and water is a critical barrier against infection from STH and other parasitic worm infections. Face-washing to cleanse the eyes of infectious discharge that attracts disease-carrying flies and washing soiled clothing and bedding prevent the spread of bacteria that cause blinding trachoma. Preventing children and adults from swimming, washing clothes, and collecting water in contaminated streams by providing a source of clean water breaks the transmission cycle of schistosomiasis.  In addition, patients suffering from lymphedema, caused by lymphatic filariasis, are encouraged to wash their limbs regularly to prevent infections. Behaviors and actions such as these are needed to prevent infection and morbidity, but in communities where water is scarce and every drop is precious, none will be used for handwashing, bathing, or cleaning if it means going thirsty instead. In communities where water is contaminated and no other sources of water are available, people are left with little choice but to risk infection in order to carry out their daily tasks. Continue reading →