Photo From: www.lg1.ch/cpg/thumbnails.php?album=12
For a small hospital, AHC really has a wonderful microbiology lab. Thanks to the help of infectious disease physicians like M and B, the lab facilities have really improved over the years. Just this past January, M was able to get support to move the microbiology department to a new building, which was fully equipped with a fairly modern lab with different incubators and a functional hood and vent. That, plus the fact that the microbiology techs are hard-working and well-trained, and there's an unexpected opportunity to be able to isolate and identify a number of weird looking organisms.
Today was a good example. S, one of the microbiology techs, came back with the final blood culture report from the child who died over Khmer New Years. The result was distinctly odd: strongly positive for Pseudomonas Oryzihabitans (P. Oryzihabitans). Even B, who I consider one of the smartest doctors I've ever known, hadn't even heard of this species. Not much is written about P. Oryzihabitans, which, like most pseudomonas species, inhabits the soil and is somewhat linked to rice farming. It is rare that any psuedomonas bacteria other than P. aeruginosa is found in blood cultures here, and both M and B were very excited with the find.
Of course, there is the novelty associated with finding a potentially new, virulent bacterial strain in a patient population. But in this case, there was another dimension of significance. Previously, it was felt by many that the child died due to medical error (e.g., fluid mismanagement). But the appearance of this P. Oryzihabitans had the potential to change this. After all, it was a bacteria that was usually associated with severe disease in immunocompromised chidlren. Could the patient have had an underlying disease such as HIV, only to die because of severe sepsis from P. Oryzihabitans.
We shall see how this unfolds. M is particularly keen on writing a case report of this, especially if we start to see more cases of P. Oryzihabitans bacteremia in other kids.