Multicenter study on spreading of the tet(M) gene in tetracycline-resistant Streptococcus group G and C isolates in Argentina.
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.
Jeric
P E
PE
Departamento de Microbiología, Facultad de Medicina, Universidad de Buenos Aires, Argentina. pvjeric@ciudad.com.ar
Lopardo
H
H
Vidal
P
P
Arduino
S
S
Fernandez
A
A
Orman
B E
BE
Sordelli
D O
DO
Centrón
D
D
D001118:Argentina; D001426:Bacterial Proteins / Q000235:genetics*; D013291:Streptococcus / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D013753:Tetracycline Resistance / Q000235:genetics*
D001426:Bacterial Proteins; C083138:Tet M resistance protein, Bacteria