Three patients were recently transferred to two Intensive Care Units (ICUs) in the Netherlands from two different ICUs in Bucharest, Romania. The patients appeared to be colonised with several, partly identical, carbapenemase-producing bacteria (CPB) after a short hospitalisation in Romania. In this article, we show that it is important to be aware of the possibility that patients are colonised with CPB after a short hospitalisation abroad. This has consequences for infection prevention measurements, but probably also for the discontinuation of selective bowel decontamination in the ICU.