Notably, all ST11 CR-KP isolates tested in this study were 100% susceptible to aztreonam/avibactam (AZA) and tigecycline (TGC), suggesting that for ST11 CR-KP infections in Ningbo, empirical treatment with AZA or TGC may be considered as a frontline clinical option. Here, NPPA is linked to keratosis pilaris.