Table 1: Bacterial strains utilized in this study. The strains were either obtained from the bacterial collection of the St. Orsola Hospital (BACSO) or derived from routine workflow. In this last case the procedure for identification are reported in the Qualty Assurance files of the Laboratory.

Microorganisms species
Origin of the isolate

Acinetobacter baumannii Urine
Acinetobacter lwoffii Urine
Alcaligenes xylosoxidans Urine
Bacteroides fragilis Cerebrospinal fluid
Campylobacter jejuni Feces
Citrobacter braakii Abdominal drainage
Citrobacter freundii Blood
Citrobacter koseri Urine
Corynebacterium jeikeium Blood
Corynebacterium minutissimum Blood
Corynebacterium striatum Blood
Corynebacterium urealyticum Blood
Enterobacter cloacae Urine
Enterobacter aerogene Urine
Enterococcus casseliflavus Blood
Enterococcus faecalis Bacso/atcc 29212
Enterococcus faecium Blood
Enterococcus gallina rum Blood
Escherichia coli Bacso/atcc 25922
Haemophilus influenzae Bacso/atcc 49247
Haemophilus influenzae Bacso/atcc 49766
Hafnia alvei Bile
Klebsiella oxytoca Blood
Klebsiella pneumoniae Urine
Morganella morganii Urine
Nocardia sp.Bronchial aspirate
Proteus mirabilis Urine
Proteus vulgaris Bronchial aspirate
Providencia stuartii Urine
Pseudomonas aeruginosa Bacso/atcc 27853
Pseudomonas luteola Bronchial aspirate
Salmonella sp. Group BFeces
Salmonella sp. Group CFeces
Salmonella sp. Group DFeces
Serratia marcescens Urine
Staphylococcus aureus Bacsoatcc 29213
Staphylococcus epidermidis Blood
Staphylococcus haemolyticus Blood
Staphylococcus hominis Blood
Staphylococcus warneri Blood
Stenotrophomonas maltophilia Faringeal swab
Streptococcus agalactiae Uretral swab
Streptococcus anginosus Blood
Streptococcus mitis Blood
Streptococcus parasanguinis Blood
Streptococcus pyogene Faringeal swab
Streptococcus pneumoniae Bacso/atcc 49619