Between January 2004 and May 2006 Escherichia coli producing extended-spectrum ?-lactamases (ESBLs) were isolated from the faeces of 118/294 residents from 16 nursing homes in Belfast. Of these, 58 isolates belonged to UK strain A, a variant of the international ST131 clone. Here we investigated the remaining 60 ESBL producers.
Molecular epidemiology of fluoroquinolone-resistant ST131 Escherichia coli producing CTX-M extended-spectrum beta-lactamases in nursing homes in Belfast, UK.
Antibiotic Resistance Monitoring and Reference Laboratory, Centre for Infections, Health Protection Agency, 61 Colindale Avenue, London NW9 5EQ, UK. hiran.dhanji@hpa.org.uk