Some immunization levels low despite compulsory law.
D002648:Child; D002675:Child, Preschool; D003140:Communicable Disease Control; D003141:Communicable Diseases / Q000276:immunology; D005260:Female; D006801:Humans; D007114:Immunization; D007883:Legislation, Medical; D008297:Male; D012572:School Health Services; D014903:West Virginia