Don't smoke around your child. Exposure to tobacco smoke increases the frequency and severity of colds, coughs, croup, ear infections, and asthma. Discourage your child from kissing pets on the mouth. Pets are for petting. Cook all meat thoroughly, especially poultry and ground beef.
Undercooked poultry is a common cause of diarrhea.
Undercooked ground beef can spread a serious diarrheal infection caused by E coli bacteria. Thaw frozen meat in the refrigerator rather than at room temperature to prevent bacteria from multiplying. Don't place cooked meat on the same platter from which uncooked meat was removed. Use a plastic cutting board. Germs can't be completely removed from wooden cutting boards.