title: Plasmid resistance to ampicillin in Salmonella typhi.
abstract: A Salmonella typhi strain resistant to ampicillin, streptomycin and sulfonamides was isolated in Catania in 1988. It has been shown that these resistances were encoded by an auto-transferable R-plasmid, of molecular weight 70 Md, belonging to the incompatibility group B.
authors.affiliation: Istituto di Igiene e Medicina Preventiva, Universitá di Catania.
authors.forename: M
authors.initials: M
authors.lastname: Marranzano
authors.forename: M
authors.initials: M
authors.lastname: D'Angelo
authors.forename: A
authors.initials: A
authors.lastname: Agodi
authors.forename: C
authors.initials: C
authors.lastname: Santangelo
mesh_terms: D000668:Ampicillin Resistance; D008970:Molecular Weight; D011815:R Factors; D012485:Salmonella typhi / Q000187:drug effects / Q000235:genetics*; D013045:Species Specificity