15 results
Hypermucoviscous Serratia marcescens - Positive String test >20mm

Dr. Wataru Hayashi @DraWataru

#Serratia #String #Test #clinical #microbiology #petri
Hypermucoviscous Serratia ... @DraWataru #Serratia ... Test #clinical #microbiology
SPICE (SPACE) Organisms
 - Colloquial acronym for gram-negative bacteria that have inducible, chromosomal beta-lactamase genes known
include: • Serratia ... #Diagnosis #Microbiology
SPICE (SPACE) Organisms

Gram-negative bacteria that have inducible, chromosomal beta-lactamase genes known as AmpC - Resistance may
include: • Serratia ... #Diagnosis #Microbiology
Important organisms in Chronic Granulomatous Disease (CGD):
 - Staph aureus
 - Serratia marcescens
 - Burkholderia cepacia
Staph aureus - Serratia ... Disease #infections #differential ... ddx #diagnosis #microbiology
Blood culture contaminants
Grouped by gram negative vs gram positive vs other as well as never/maybe/probably
Some additional
Blood culture contaminants ... #Infections #Microbiology ... #Micro #Differential
Microorganisms isolated & reported from Crocodile or alligator bites
1. Vibrio vulnificus
2. Citrobacter spp. 
3. Burkholderia pseudomallei
4.
Serratia fonticola ... Proteus vulgaris #microbiology ... crocodile #bites #differential
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood culture ... identified with modern culture ... BCNIE #Causes #differential ... diagnosis #causes #culture ... InfectiousDiseases #Microbiology
Polyp Incidence on Colonoscopy
Tubular adenoma - 47.2%
Hyperplastic polyp - 16.0%
Tubulovillous adenoma - 17.6%
Normal - 5.6%
Inflammatory polyp
2.0% Sessile serrated ... 1.0% Traditional serrated ... #Colonoscopy #differential
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS) Microbiology ... : Blood cultures ... 90% of IE cases Culture ... Marantic (NTBE) Differential ... • Blood cultures
Colony Morphology in Microbiology
1. Size - Punctiform, Small, Moderate, Large
2. Color
3. Texture - Dry, Smooth, Viscid,
Morphology in Microbiology ... Undulate, Curled, Serrate ... Colony #Morphology #Microbiology