Follow-up analysis of qacA/B genes in Staphylococcus isolates over 6 years in an ICU.
Minimal carriage of qacA/B in Staphylococcus aureus from screening samples and bacteraemias.
High proportion of qacA/B carriage in Staphylococcus epidermidis from bacteraemia patients.
Most qacA/B S. epidermidis isolates belonged to multidrug-resistant clone ST2.