Rich Davis, PhD, D(ABMM), MLS🧫🦠
@richdavisphd
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Clinical Microbiology Lab Director. Sharing clinical micro pics with #MicroRounds Tweets/opinions are my own, he/him
Spokane, WA
Joined March 2010
What does a mask do? Blocks respiratory droplets coming from your mouth and throat. Two simple demos: First, I sneezed, sang, talked & coughed toward an agar culture plate with or without a mask. Bacteria colonies show where droplets landed. A mask blocks virtually all of them.
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This organism is XDR Shigella sonnei. The black colonies on XLD are H2S producing Citrobacter freundii- normal enteric flora.
Patient w/ 10d of diarrhea.Stool culture grew 1) red/clear colonies on XLD 2) NLF GNR on MAC 3) grey spready colonies on BAP. The organism was oxidase, indole &urease neg and was identified as E.coli by MALDI-TOF. What organism is this? #clinicalmicrobiology #path2path #micro
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It's official! XBB boosters for all. CDC Recommends Updated COVID-19 Vaccine for Fall/Winter Virus Season
cdc.gov
CDC provides credible COVID-19 health information to the U.S.
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#MicroRounds (Day 998): "nucleation" 2 of 2 blood culture *sets* (not bottles) growing a non-motile spindly GNR? May be Fusobacterium. This F. nucleatum grew in bundles & clusters, possibly related to its reported aggregation/plaque formation ability. #ASMClinMicro #IDTwitter
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Spooky season is upon us 🍁🎃👻💀🍂 Name that siderophore… #Halloween #clinicalmicrobiology #itsfallyall #path2path #uabpathology #bacteriology
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I wear another hat as Emerging Public Health Crises director. Lots of partnerships with reference labs & public health/CDC over the years. Ben Bradley & I just published this work for anyone interested in the processes and considerations for EUA assays. https://t.co/7kUJZV8Y1r
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#MicroRounds (Day 997): "clap back" From a genital culture on a urethral swab specimen, neutrophils and GNDC seen on direct Gram stain and confirmed by growth on MTM agar, and by only oxidizing (not fermenting!) glucose: it's Neisseria gonorrhoeae #ASMClinMicro #IDTwitter
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#MicroRounds (Day 996): "late arrival" Leg wound bacterial culture was finaled & shelved on day 5. Our lab does quality checks to verify how techs report cultures. Lo & behold, our specialist noticed this late-growing Fusarium that would've been missed! #ASMClinMicro #IDTwitter
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And it's fortunate I had to google the translation or else I would have missed the nod to Monet's "Soleil couchant sur la Seine à Lavacourt, effet d'hiver" (Setting sun on the Seine at Lavacourt, winter effect) @Genevieve_Hery
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A sunset is a gorgeous way to show pyorubin production from Pseudomonas!
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#MicroRounds (Day 995): “spit take” A video #microrounds today. Gram stain of a respiratory culture sample viewed on high power (100x, oil immersion). Bacteria everywhere but we rejected it for culture. Epithelial cells & no PMN? It’s oral/URT flora. Spit in a cup! #IDTwitter
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Current Pyuria Cutoffs Promote Inappropriate Urinary Tract Infection Diagnosis in Older Women 🔓 Open Access https://t.co/iDg1kUcxxe
academic.oup.com
The degree of pyuria can help distinguish urinary tract infection (UTI) in older women from asymptomatic women with and without bacteriuria. We demonstrate
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Clinicians: Consider malaria diagnosis in patients with an unexplained cause of fever, particularly in areas where locally acquired malaria has occurred. Quick diagnosis & treatment can prevent severe disease & death & limit ongoing spread. Learn more: https://t.co/88cO5VHnqy
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Growing up, my mom would bottle apples and pears. Parasitologists store other things in jars. 😁
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Loved this story in The @guardian about the women building the Maternal Center of Excellence and a better future for Sierra Leone. Very proud of the work @PIH and @BuildHealthIntl do to work in such deep partnership with the communities they serve.
theguardian.com
The state-of-the-art facility will bring huge improvements to care in the country but it is also challenging gender roles in the construction industry
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#MicroRounds (Day 994): "jarring" Ascaris lumbricoides arrived to the lab in a handy Mason jar! These are found when coughed up or passed in stool. Close examination would show 3 "lips" and, if male, a curled tail. Spread by ingesting fertilized eggs from the soil #IDTwitter
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Diagnostic utility of oropharyngeal swabs as an alternative to lower respiratory tract samples for PCR-based syndromic testing in patients with community-acquired pneumonia https://t.co/DG1UFfXwEr
@ASMicrobiology
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#MicroRounds (Day 993): "color me impressed" #FungalFriday A fantastic isolate of Aspergillus versicolor, w/ beautiful yellow-suede, green peak colonies. Along w/ loose, biseriate heads, seeing Penicillium-like heads is completely normal for this species #ASMClinMicro #IDTwitter
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Wow! Evidence of cross protection from the Neisseria meningitidis vaccine and Neisseria gonorrhea!
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Busy week so I am dumping some fun cases all at once. Found in a wet mount body fluid exam. Source: liver cyst, aspirate contents This is a lob-ball, but always fun. Dx? How did the patient acquire this? #parasitology
@ARUPLabs
@ParasiteGal
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