These diseases result from the lack of adequate water supply for human use. The pathogens are passed on faecal-orally from humans to humans or by contact with contaminated surfaces. Typical diseases are:

• Eye diseases
  • Trachoma
• Diarrhoea
  • Amebic dysentery
  • Cholera
  • Giardiasis (Lambliasis)
  • Typhoid
• Viral illnesses
  • Hepatitis A und E
  • Lassa fever
• Worm diseases
  • Guinea worm
  • Hook worm