Respondents chose meropenem/vaborbactam mainly when K.pneumoniae-CP was suspected; this appears in line with what is conditionally recommended by European Society of Clinical Microbiology and Infectious Diseases (ESCMID) guidelines to treat severe infections due to CRE, while the use of an old antibiotic is still proposed as the first choice to treat non-severe infections. The gene discussed is CP; the disease is infection.