title: Non-toxigenic Corynebacterium diphtheriae var gravis in England.
authors.forename: A
authors.initials: A
authors.lastname: Efstratiou
authors.forename: R C
authors.initials: RC
authors.lastname: George
authors.forename: N T
authors.initials: NT
authors.lastname: Begg
mesh_terms: D002353:Carrier State / Q000382:microbiology*; D003353:Corynebacterium diphtheriae / Q000235:genetics / Q000302:isolation & purification*; D004165:Diphtheria / Q000382:microbiology*; D004167:Diphtheria Toxin / Q000096:biosynthesis*; D006801:Humans; D006113:United Kingdom
chemical_list: D004167:Diphtheria Toxin