Bangladesh, a country crossed by hundreds of rivers, is annually subject to Monsoon flooding but this year it has been worse than ever. More than a third of the country has been submerged by water causing disease and compromising the harvest. Over 70.000 people lost their homes and have been forced to move to one of the many centers for homeless people. But the drinking water problem is undoubtedly the biggest of all. Entire families use the rivers as toilets, infecting the water, which they also use for drinking or washing. This problem, added to the lack of food which makes the immune system more vulnerable, has led to the rapid diffusion of cholera, hepatitis B, severe diarrhea and respiratory infections.