Unwashed hands are a leading cause of the spread of bacteria. People should wash their hands with hot water and soap before touching food. It is important to find clean water when eating away from home. If there is none, make sure to bring water for preparation and cleaning. Or carry clean, wet washcloths for cleaning hands and surfaces.
Bacteria also can spread when food is transported, prepared and served.
Make sure to keep uncooked meat cold until it is cooked. Do not let liquid from uncooked meat touch other foods. Wash objects that held the meat before using again for cooked food. Heating food for a long time at high temperatures will kill harmful bacteria. But you cannot judge if food is cooked completely by looking at its color.