title: Environmental indicators and implications for control of infectious syphilis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D006306:Health Surveys; D006801:Humans; D008875:Middle Aged; D008923:Missouri; D012959:Socioeconomic Factors; D013587:Syphilis / Q000517:prevention & control*