Characterisation of Exiguobacterium aurantiacum isolates from blood cultures of six patients.
Exiguobacterium spp. are alkaliphilic, halotolerant, non-spore-forming Gram-positive bacilli, hitherto uncharacterized from human infections. Six isolates of Exiguobacterium aurantiacum were obtained from patients with bacteraemia, three of whom had myeloma. All isolates formed orange-yellow pigmented colonies on blood agar, were catalase- and DNase-positive, and grew on nutrient agar at pH 10 and in the presence of NaCl 6% w/v. The six isolates were susceptible to all antimicrobial agents tested and were uniform in their fatty acid and mass spectrum profiles.
Pitt
T L
TL
Laboratory of HealthCare Associated Infection, Health Protection Agency, Centre for Infections, London, UK. tyrone.pitt@hpa.org.uk
Malnick
H
H
Shah
J
J
Chattaway
M A
MA
Keys
C J
CJ
Cooke
F J
FJ
Shah
H N
HN
D001406:Bacillaceae / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology*; D016470:Bacteremia / Q000097:blood*; D016908:Gram-Positive Bacterial Infections / Q000097:blood* / Q000382:microbiology; D006801:Humans; D008297:Male; D008875:Middle Aged