If you are afraid of getting salmonella take these precautions. Use disposable gloves for cleaning, safety glasses to avoid splashes in your eyes while cleaning, have designated clothing for cleaning that you change out of after cleaning, use a good disinfectant, don't let lizard free roam, have designated holding areas, never
bathe lizard in kitchen sink, clean up poo as soon as possible, keep up with spot cleaning and thorough cleaning of enclosure. Just some ideas. Also cover any open cuts on your hands when handling lizard and always wash hands good including under your nails.