15 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative ... #culture #negative ... #Endocarditis #InfectiousDiseases ... #Microbiology #
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
9 species, C. canimorsus ... infections • Gram-negative ... microorganism (Culture ... #microbiology # ... zoonotic #infectiousdiseases
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... Drug fever #relative ... #bradycardia #Causes ... differential #diagnosis #infectiousdiseases ... #table #NonInfectious
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... antibiotics as a cause ... of a negative culture ... Differential #Diagnosis #InfectiousDiseases
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
Dx? ... dogs & latter can cause ... gram-negative bacillus ... cause selsis after ... Myocarditis & culture-negative
Psittacosis 
Pathogen: Chlamydia psittaci - obligate intracellular gram negative
Transmission:
 • Birds are the primary reservoir
 •
intracellular gram negative ... test • PCR • Culture ... Chlamydia #psittaci #microbiology ... management #treatment #infectiousdiseases
A retrospective cohort study of blood culture results and microbiology laboratory charges for pediatric cases of
study of blood culture ... results and microbiology ... for pediatric cases ... Repeat cultures. ... #EBM #InfectiousDisease
Capnocytophaga
GNR with long fusiform shape.  Fastidious facultative anaerobe that grows slowly and needs enriched agar
C.
enriched agar C. animorsus ... = most common cause ... febrilepodcast] #InfectiousDiseases ... Diagnosis #Cats #Dogs #Microbiology ... #CAnimorsus
CAPD-associated peritonitis (Continuous Ambulatory Peritoneal Dialysis) - 5 Things To Know
Diagnosis (Two of the following):
(1) Clinical
Positive effluent culture ... Microbiology: • ... • 15-35% Gram negative ... negative peritonitis ... Diagnosis #Management #InfectiousDiseases
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... remain negative ... but important causes ... #BloodCulture #Negative ... differential #workup #infectiousdiseases