Don't use ice made from tap water. For infants, breast-feeding is the best and safest food source. However, the stress of traveling may decrease milk production. Drink bottled drinks if the seal on the bottle hasn't been broken. Carbonated drinks are generally safe.
Hot drinks are generally safe.
Do not eat raw or rare meats. Do eat hot, well-cooked foods. Heat kills the bacteria. Hot foods left to sit may become re-contaminated. Wash hands often.