Emerging Infectious Disease ISSN: 1080-6059

Photorhabdus Species: Bioluminescent Bacteria as Human Pathogens?

John G. Gerrard*

, Samantha McNevin†, David Alfredson*, Ross Forgan-Smith†, and Neil Fraser‡

Author affiliations: *Gold Coast Hospital, Southport, Queensland, Australia; †Queensland Medical Laboratory, West End, Queensland, Australia; ‡Harbour City Family Practice, Gladstone, Queensland, Australia

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Figure 1

Photorhabdus isolate from patient 2, growing on tryptic soy agar containing 5% sheep blood, after 48 hours’ incubation at 35°C. Arrows indicate “swarming.” The colonies could be seen to glow faintly with the naked eye under conditions of total darkness after 10 minutes of adjustment.

Figure 1. Photorhabdus isolate from patient 2, growing on tryptic soy agar containing 5% sheep blood, after 48 hours’ incubation at 35°C. Arrows indicate “swarming.” The colonies could be seen to glow faintly with the naked eye under conditions of total darkness after 10 minutes of adjustment.

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