Abstract
We describe an outbreak caused by
Serratia marcescens
carrying
bla
KPC-3
that was sourced to a long-term care facility in Florida, USA. Whole-genome sequencing and plasmid profiling showed involvement of 3 clonal lineages of
S. marcescens
and 2
bla
KPC-3
-carrying plasmids. Determining the resistance mechanism is critical for timely implementation of infection control measures.