Neonatal intestinal colonization with extended-spectrum β-lactamase-producing Enterobacteriaceae-a 5-year follow-up study

Two years after discharge, almost one fourth of the study participants were ESBL/KP-EC carriers. ESBL-KP sequence type 101 persisted in two of 13 children for 23 to 26 months. One patient was colonized with ESBL-EC at age 5 years.