Simarro E, Navarro F, Ruiz J, Miró E, Gómez J, Mirelis B
Departamentos de Microbiología y, del Hospital Virgen de Arrixaca, 30120 Murcia, Spain.
J Clin Microbiol. 2000 Dec;38(12):4676-8. doi: 10.1128/JCM.38.12.4676-4678.2000.
Four Salmonella enterica serovar Virchow strains resistant to broad-spectrum cephalosporins were isolated from patients with gastroenteritis in 1997 and 1998 in Murcia and Barcelona, Spain. The isolates expressed a beta-lactamase with a pI of about 8 and a positive PCR when specific primers for CTX-M-9 were used. These results suggest the presence of a CTX-M-9 beta-lactamase in these strains.
1997年和1998年在西班牙穆尔西亚和巴塞罗那,从肠胃炎患者中分离出4株对广谱头孢菌素耐药的肠炎沙门氏菌维尔肖菌株。这些分离株表达一种pI约为8的β-内酰胺酶,并且当使用CTX-M-9特异性引物时PCR呈阳性。这些结果表明这些菌株中存在CTX-M-9β-内酰胺酶。