Since salmonellosis is caused by eating food containing the harmful bacteria called salmonella, there are things that can be done in order to prevent salmonellosis from infecting a person. The first thing that can be done is the hands of the person handling the food should be washed frequently. Any mixing of juices between foods such as raw meat and poultry can cause an infection when the food is eaten, so the hands should be washed at all times when handling different foods. Also, the surfaces that the food is touching should be washed frequently as well in order to prevent the juices from mixing.