| Autor: |
Zolezzi PC; Department of Microbiology, Preventive Medicine and Public Health, Faculty of Medicine, University of Zaragoza, C/Domingo Miral s/n, 50009 Zaragoza, and Centro de Salud Internacional, IDIBAPS, Hospital Clinic, Barcelona, Spain., Cepero PG, Ruiz J, Laplana LM, Calvo CR, Gómez-Lus R |
| Jazyk: |
angličtina |
| Zdroj: |
Antimicrobial agents and chemotherapy [Antimicrob Agents Chemother] 2007 Apr; Vol. 51 (4), pp. 1487-90. Date of Electronic Publication: 2007 Feb 05. |
| DOI: |
10.1128/AAC.01374-06 |
| Abstrakt: |
The epidemiologic relatedness of 29 erythromycin-resistant Gemella sp. strains from normal flora, characterized previously, were evaluated by pulsed-field gel electrophoresis (PFGE). Three isolates carried the tet(O) gene and the tet(M) gene. The msr(A) gene was found in two Gemella morbillorum strains in combination with the erm(B) or mef(E) gene. The sequences of the mef(A/E), erm(B), and msr(A) genes showed a high similarity to the corresponding sequences of other gram-positive cocci. All the strains harboring the mef(A/E) gene and the msr(D) gene possessed open reading frame 3 (ORF3)/ORF6. The 16 G. morbillorum isolates represented 15 distinct DNA profiles. Four clusters were identified (>or=80% genetic relatedness). The 12 Gemella haemolysans strains belonged to different PFGE types. The clonal diversity found suggests that horizontal transfer may be the main route through which erythromycin resistance is acquired. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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