Table 1. Clinical identity, identification technique, and source of all the clinical isolates used in this study.

Clinical Identity	Identification Technique	Number of Isolates	Source
Acinetobacter baumannii	culture-based	20	Clinical Microbiology Laboratory-UCSF, CA
Bordetella pertussis	culture-based	20	Microbial Diseases Laboratory-California Public Health Department, CA
Burkholderia ambifaria	recA-RFLP; box-PCR fingerprinting	2	B. cepacia Research Laboratory and Repository-University of Michigan, MI
Burkholderia cenocepacia	recA-RFLP; box-PCR fingerprinting	6	B. cepacia Research Laboratory and Repository-University of Michigan, MI
Burkholderia cepacia	recA-RFLP; box-PCR fingerprinting	7	B. cepacia Research Laboratory and Repository-University of Michigan, MI
Burkholderia dolosa	recA-RFLP; box-PCR fingerprinting	3	B. cepacia Research Laboratory and Repository-University of Michigan, MI
Burkholderia multivorans	recA-RFLP; box-PCR fingerprinting	3	B. cepacia Research Laboratory and Repository-University of Michigan, MI
Burkholderia pyrrocinia	recA-RFLP; box-PCR fingerprinting	3	B. cepacia Research Laboratory and Repository-University of Michigan, MI
Burkholderia stabilis	recA-RFLP; box-PCR fingerprinting	2	B. cepacia Research Laboratory and Repository-University of Michigan, MI
Burkholderia vietnamiensis	recA-RFLP; box-PCR fingerprinting	4	B. cepacia Research Laboratory and Repository-University of Michigan, MI
Citrobacter freundii	culture-based	20	Clinical Microbiology Laboratory-UCSF, CA
Enterobacter aerogenes	culture-based	20	Clinical Microbiology Laboratory-UCSF, CA
Enterobacter cloacae complex	culture-based	29	Clinical Microbiology Laboratory-UCSF, CA
Escherichia coli	culture-based	30	Clinical Microbiology Laboratory-UCSF, CA
Enterococcus faecalis	culture-based	30	Clinical Microbiology Laboratory-UCSF, CA
Enterococcus faecium	culture-based	31	Clinical Microbiology Laboratory-UCSF, CA
Haemophilus influenzae	culture-based	37	Clinical Microbiology Laboratory-UCSF, CA
Klebsiella oxytoca	culture-based	20	Clinical Microbiology Laboratory-UCSF, CA
Klebsiella pneumoniae	culture-based	30	Clinical Microbiology Laboratory-UCSF, CA
Mycobacterium tuberculosis	nucleic acid hybridization	29	MTB Research Laboratory-UCSF, CA
Neisseria lactamica	serotyping; porA PCR	2	Clinical Microbiology Laboratory-UCSF, CA
Neisseria meningitidis	serotyping; porA PCR	28	Institute of Environmental Science and Research-Wellington, New Zealand
Proteus mirabilis	culture-based	30	Clinical Microbiology Laboratory-UCSF, CA
Pseudomonas aeruginosa	culture-based	30	Clinical Microbiology Laboratory-UCSF, CA
Serratia marcescens	culture-based	30	Clinical Microbiology Laboratory-UCSF, CA
Staphylococcus aureus	culture-based	30	Clinical Microbiology Laboratory-UCSF, CA
Staphylococcus epidermidis	culture-based	30	Clinical Microbiology Laboratory-UCSF, CA
Stenotrophomonas maltophilia	culture-based	30	Clinical Microbiology Laboratory-UCSF, CA
Streptococcus pneumoniae	culture-based	30	Clinical Microbiology Laboratory-UCSF, CA
Streptococcus viridans group	culture-based	31	Clinical Microbiology Laboratory-UCSF, CA