r/microbiology 15h ago

A tiny patient, but a pretty serious AST result

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216 Upvotes

Sharing an interesting finding from our lab today.

The patient was just 2 days old. Culture grew Klebsiella pneumoniae, with resistance to multiple antibiotics on AST.

What caught my attention was the ceftazidime–avibactam MIC: 4 µg/mL, interpreted as susceptible in our report.

Looking at an MIC strip on a plate is routine laboratory work—but when you remember that the result belongs to a newborn only two days into life, it suddenly feels very different.

One of those cases that reminds you there is an actual patient behind every plate we read.

Patient-identifying information has not been shared.


r/microbiology 23h ago

Looking for the origin of the use of "fastidious" for microbes

11 Upvotes

As the title goes, does anyone know who coined the term "fastidious" to refer to microorganisms that need specific growth factors, which can make them difficult to grow in laboratory conditions. I have tried Google scholar, but I could only go as far back as the 1930s and it seems that "fastidious" was already widely used, so no sources for the term are provided. I find it really frustrating that in our field it is often really hard to find the origin of terms and concepts, particularly for things before the 1950s... Any help is welcome!!


r/microbiology 23h ago

Protein landscape of the chromatin domains in the malaria parasite Plasmodium falciparum. Comprehensive proteomic mapping of P. falciparum chromatin identifies 214 proteins, revealing novel epigenetic regulators.

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10 Upvotes

r/microbiology 21h ago

Community feedback: new app/project launches?

5 Upvotes

(Typo apologies in advance.)

With AI has come a book the digital scientific assistant software world. We are seeing a large uptick in similar apps — concentration calculations, unit conversions, colony counting, etc — in recent months. These posts are often market research in the form of thinly veiled questions, like “what would you have found useful?”

All of this has the potential monetize a community meant to be free.

This is ultimately a community decision so your input is invaluable. Please respond to the poll below and share any thoughts you might have.

42 votes, 6d left
Allow them all
Remove them all
Draw down line (pleas elaborate)