Volume 92, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



, , , and (VACS) are water-associated Gram-negative organisms that can cause a variety of infections. The frequency, patient characteristics, and antimicrobial susceptibilities for 468 isolates from 442 patients from the Northern Territory were reviewed. spp. (312 of 468; 67%) were most commonly isolated followed by spp. (71 of 468; 15%), spp. (61 of 468; 13%), and (24 of 468; 5%). A strong male predominance was found (male to female ratio of 2.3:1). Skin and soft tissue isolations (373 of 468; 80%) from lower limb infections (222 of 371; 60%) were the most common clinical manifestation. The episodes were usually polymicrobial (281 of 468; 60%). Coisolates included (137 of 468; 29%), β-hemolytic streptococci (74 of 468; 16%), enterobacteriaceae (111 of 468; 24%), non-fermentative Gram-negative bacilli (35 of 468; 7%), and other VACS organisms (37 of 468; 8%). Antimicrobial resistance of VACS organisms to ciprofloxacin (0–4%), cefepime (0–3%), and gentamicin (0–0.8%) and spp., spp., and to cotrimoxazole (0–3%) was rarely shown. For water-associated lower limb skin and soft tissue infections in the tropics, clinicians should consider empirical antimicrobial therapy with agents active against and VACS organisms.


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  • Received : 13 Nov 2014
  • Accepted : 22 Nov 2014

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