This guide emphasizes the progress made by surveillance systems in the identification and monitoring of high-risk areas and the conduct of special immunization activities targeting women of childbearing age who live in those areas. Such measures are meant to complement routine procedures such as providing diphtheria-pertussis-tetanus (DPT) vaccine for infants and children and tetanus and diphtheria toxoid (DT/Td) for school-aged children and pregnant women. Detailed information on clean delivery and post-delivery practices will no be given, as these topics are thoroughly covered in other docum.