On the Edge of Microbiology
I hit the jackpot again last quarter. The medical director asked us to keep an eye out for Staph argenteus and Staph schweitzeri at the beginning of last year. We were to document every case and freeze each isolate for research. As for the exact nature of the research, the director did not say.
A quick search on Wikipedia will yield a minimum amount of information. The main point here is it's hard to differentiate from Staph aureus. It also mentions cytotoxicity, so I decided to scratch the surface further.
I found an article that went more in-depth about the nature of these S. aureus-like bacteria. The publishing date is 2019, so it's not the most recent information. But, it does elaborate more on the cytotoxicity they exhibit on cells.
As for me, the MALDI-TOF was able to identify it with confidence. There's a good chance whatever information I found online was likely not up to date.
How often does my department come across S. argenteus and S. schweitzeri? The answer is not often. We document every occurrence, which totals only a handful of times each quarter. In short, we only see them about a dozen or two times a year.
Perhaps we will see more of them as identification methods improve. We shall see.
Posted with STEMGeeks
Still no indication why they want you to keep track of it though?
I guess studying up on its pathogenicity and see if treatment needs to differ from a S. aureus infection.
Interesting. Not like they are worried about some kind of outbreak or anything like that?
They are only dangerous if they get into your soft tissues and wounds.
Many have them in their nostrils and stuff as part of their flora.
Ah, okay. I had some nasty infection in my leg a while ago. It would have been interesting to see what it was. I think it came from our dog because she used to sleep with us. I should have covered my open wound.
Could be many things.
Won’t know unless you saw the lab report.
Interesting!! keep documenting about it!
I’ll be sure to when I learn more.
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Is this a similar variant to what's been killing kids in the UK recently?
Group A is Strep. pyogenes.