Patient transfer between hospitals and in particular between countries, is a risk factor for the spread of bacteria that are resistant to last-line antibiotics. More specifically, for highly resistant bacteria, like carbapenamase-producing Enterobacteriaceae (CPE), the risk is heightened when patients are transferred from, or have received previous medical care in areas with high rates of bacterial resistance. These are conclusions from a risk assessment produced by ECDC that evaluated the risk to the citizens of Europe, of the spread of CPE through patient transfer between healthcare facilities, with special emphasis on cross-border transfer.