title: Additional changes to immunization requirements.
authors.forename: L
authors.initials: L
authors.lastname: Livingston
mesh_terms: D000818:Animals; D002648:Child; D003120:Colorado; D005260:Female; D006293:Health Promotion; D006801:Humans; D007114:Immunization / Q000145:classification / Q000331:legislation & jurisprudence*; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010567:Pertussis Vaccine; D011817:Rabbits; D014481:United States
chemical_list: D010567:Pertussis Vaccine