title: Multicenter study on spreading of the tet(M) gene in tetracycline-resistant Streptococcus group G and C isolates in Argentina.
abstract: A prospective multicenter study on invasive infections caused by beta-hemolytic streptococci was performed over 6 months and involved 42 centers from 16 cities in Argentina. Among 33 isolates recovered, 9 group G Streptococcus isolates (39.1%) and 2 group C Streptococcus isolates (20%) exhibited resistance to tetracycline and harbored the tet(M) gene. Genealogical analysis revealed that tetracycline resistance has a polyclonal origin in Argentina.
authors.affiliation: Departamento de Microbiología, Facultad de Medicina, Universidad de Buenos Aires, Argentina. pvjeric@ciudad.com.ar
authors.forename: P E
authors.initials: PE
authors.lastname: Jeric
authors.forename: H
authors.initials: H
authors.lastname: Lopardo
authors.forename: P
authors.initials: P
authors.lastname: Vidal
authors.forename: S
authors.initials: S
authors.lastname: Arduino
authors.forename: A
authors.initials: A
authors.lastname: Fernandez
authors.forename: B E
authors.initials: BE
authors.lastname: Orman
authors.forename: D O
authors.initials: DO
authors.lastname: Sordelli
authors.forename: D
authors.initials: D
authors.lastname: Centrón
mesh_terms: D001118:Argentina; D001426:Bacterial Proteins / Q000235:genetics*; D013291:Streptococcus / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D013753:Tetracycline Resistance / Q000235:genetics*
chemical_list: D001426:Bacterial Proteins; C083138:Tet M resistance protein, Bacteria