The best protection is Hepatitis A vaccine, before you are exposed to the virus. The Hepatitis A vaccine consists of a series of shots. You need all the shots to be protected. Adults need two shots, six months apart. Children need three shots, spread out through the year.
Children can get shots after the age of two.
Always wash your hands after using the toilet. Always wash your hands before fixing food. Wear gloves if you must touch other people's stool. Drink bottled water when you are in another country. Contact your doctor.