Contaminated food and water may carry a variety of viral, bacterial, and parasitic infections. Contamination comes from human waste contacting a water supply. Contaminated water or ice can be the source of typhoid fever, cholera, hepatitis, and other waterborne diseases. Guarantee a safe water supply by vigorously boiling drinking water and water for ice for not less than three minutes.
Many bacteria and parasites are killed within a few minutes, but it takes a full three minutes at boiling temperature for the hepatitis virus to die. The cooled water should then be filtered and stored in the refrigerator if not used within 24 hours. Well-known, locally bottled beverages are safe to drink without ice cubes in local restaurants. Treated and bottled water is readily available.