Mature biofilms of Enterococcus faecalis and Enterococcus faecium are highly resistant to antibiotics.
Enterococcus faecalis and Enterococcus faecium are important nosocomial pathogens that form biofilms on implanted materials. We compare the antibiotic sensitivity of bacteria in new (established during 24hours) and mature (established during 120hours) enterococcal biofilms. Mature biofilms contained more bacteria and were much more tolerant to antibiotics, including rifampicin-containing combinati
