The Two Cutting Boards Rule
Many cooks keep two cutting boards in the kitchen. One board is for raw chicken, fish and meat. The other is for foods that will not be cooked, like salad, bread and fruit. Why would anyone need two?
Raw meat, chicken and eggs can carry germs that make people sick. Cooking all the way kills those germs, so cooked food is safe. But a salad is eaten raw. Suppose a cook chops chicken and then slices tomatoes on the same board with the same knife. Germs from the chicken can move onto the tomatoes. Nothing will cook them away. This problem has a name, cross-contamination.
The solution is simple. Keep the boards apart. Some families use a different color for each board, like red for raw meat and green for vegetables. If there is only one board, wash it and the knife in hot, soapy water before using them for anything else. Always wash your hands after touching raw meat.
The fridge needs a rule too. Raw meat goes on the bottom shelf in a covered dish. That way, nothing can drip down onto the food below it.
With a few easy habits, everyone at the table can enjoy a safe meal.