Diphtheria-tetanus-pertussis (DTP) coverage is the percent of one-year-olds who have received three doses of the combined diphtheria, tetanus toxoid and pertussis vaccine in a given year. Not only is immunization an essential component of reducing under-five mortality and controlling the spread of communicable diseases, but it also represents the primary health care system’s ability to reach and serve children multiple times during the first year of life.