Discover and read the best of Twitter Threads about #Yersinia

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Weekend Digest

Name the Pathogen

5 Clues:

- #Chitlins
- #Iron sepsis
- Mesenteric #adenitis
- Reactive #arthritis
- Terminal #ileitis Image
2/
#Yersinia enterocolitica

It is #zoonotic and is acquired by exposure to contaminated food.

When #IDBR says #chitlins (#chitterlings), you say Y. enterocolitica

Chitlins are food made of pork intestines (where Y enterocolitica resides)

ncbi.nlm.nih.gov/pmc/articles/P…
3/
#Yersinia enterocolitica

Enterobacteriaceae #GNB that causes #enterocolitis, diarrhea (often bloody), terminal #ileitis, mesenteric #adenitis, and RLQ pain that may be mistaken as #appendicitis (#pseudoappendicitis)
Read 6 tweets
#idboardreview Pt attended a holiday party 4 days ago and ate julesylte Christmas brawn & pork chops now presents w/ fever, R sided abd pain, bloody diarrhea. short gram neg rod. dx? #medEd #idmedEd #idtwitter ImageImage
#yersinia #enterocolitica aerobic & anaerobic growth, non-spore forming, pleomorphic, non-lactose fermenting gram negative bacilli, motile ar 25C but nonmotile at 37C
-growth at 37C on Mcconkey, brain-heart infusion, CIN cefsulodin, irgasan, novobiocin agar
#yersinia #enterocolitica Case Ref ncbi.nlm.nih.gov/pmc/articles/P… Brawn is prepared by layering pork meat (precooked head muscles), veal, lard, spices in a mold. cooked to 74°C & maintained at 70°C for at least 30 min. After removal from the mold, the brawn is vacuum-packed for sale
Read 9 tweets
Here it is!

#Inktober2020 day 1 in my #PathogenPortraits series. After years of studying this in cow bums, it had to be #EcoliO157

It causes bloody diarrhoea & if that wasn't bad enough, sometimes kidney failure & death. More info @
nhsinform.scot/illnesses-and-…
#sciart #microbiology Inktober2020 E. coli O157 c...
#Inktober2020 day 2 in my #PathogenPortraits series. 'The Clap' (Neisseria gonorrhoeae) b/c who doesn't 💚 green purulent discharge?

It's sexually transmitted but also from mother->newborn during birth to cause blindness.
More info: microbewiki.kenyon.edu/index.php/Neis…

#sciart #microbiology Image
#Inktober2020 day 3 in my #PathogenPortraits series. The very 💛golden💛 #MRSA.

Minds it's own business on your skin, but if it gets inside, methicillin won't do a thing to stop it.

More info at mrsaactionuk.net/MRSA.html #sciart #microbiology Methicillin resistant staph...
Read 34 tweets
Images of Infectious Diseases

This is the histopath and gram stain of culture of a lymph node biopsy of a person with tender purulent inguinal adenopathy.
Dr. @dwchallener
Dr. @ali_eberly
MCQ #MayoIDQ to follow Image
72M. Crohn’s. 2 pet dogs. 1 pet cat.
2 mo after L knee surgery —> tender L inguinal node with purulence. No F/C. No response to TMP-SMX.

Biopsy (see photo): Stellate suppurative granuloma with central necrosis and clumps of bacteria.

What is the most likely diagnosis?
1/
#Gram stain: a first step in bacterial identification —> two major groups:
1. Gram-positive: retains primary stain (crystal violet)
2. Gram-negative: does not retain crystal violet but counterstained by safranin/fuchsine —> red / pink

Named after Hans Christian Gram (photo) Image
Read 12 tweets

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