Diarrhea is very contagious if it is caused by an infection. It is important to use good hand-washing technique, particularly in the following situations:
Food poisoning can also be minimized by cleaning all utensils, cleaning cooking or preparing surfaces, and cooking meat until it is cooked through and no longer pink.
Usually there are no serious long-term effects if diarrhea in children is effectively treated. In countries where access to intravenous fluids and medication is limited, children may suffer from other diseases or diarrhea may be fatal.
If the illness is caused by a serious infection or the child becomes extremely dehydrated, there may be more serious long-term effects. If a child becomes severely dehydrated, the amount of fluid in the bloodstream decreases. This makes it difficult for the bodily organs to get enough oxygen and nutrients. If this is severe enough, this can cause death. Diarrhea is one of the leading causes of death in children around the world.
Diarrhea, especially in toddlers, can last a long time. If it is accompanied by persistent loss of appetite, it can lead to nutritional problems. This, however, is unusual. Diarrhea can sometimes cause temporary problems digesting milk products, a condition known as lactose intolerance. This usually resolves on its own. If a child is still in diapers, diarrhea may cause severe diaper rash.
Diarrhea caused by a virus or bacterial infection may be contagious. It is important to wash hands well to prevent spreading germs. The elderly, young children, or others who have weakened immune systems are at increased risk. Diarrhea can cause more serious symptoms in these individuals.