typhoid vaccine, a bacterial vaccine prepared from an inactivated dried strain of Salmonella typhi. ▪ INDICATIONS: It is prescribed for primary immunization against typhoid fever for adults and children. According to the National Institutes of Health, routine typhoid vaccination is not recommended in the United States. It is only recommended for those who are traveling to areas outside of the U.S. to areas where typhoid is common. ▪ CONTRAINDICATIONS: Acute infection or concomitant use of corticosteroids prohibits its use. ▪ ADVERSE EFFECTS: Among the more serious adverse effects are anaphylaxis and pain and inflammation at the site of injection.