6040 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
epidermidis - Gram-negative ... ) - Culture negative ... Enterococci - Gram-negative ... Bacteria #Pathogens #Diagnosis ... #Differential #InfectiousDiseases
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
blood culture negative ... #differential #diagnosis ... causes #culture #negative ... #Endocarditis #InfectiousDiseases
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Staphylococci (skin), Gram-negative ... Staphylococci (skin), Gram-negative ... #differential #diagnosis ... #causes #infectiousdiseases
HACEK is the acronym commonly used to describe and help doctors to remember a group of
fastidious Gram-negative ... #Diagnosis #InfectiousDiseases
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture Negative ... - Differential Diagnosis ... as a cause of a negative ... #Differential #Diagnosis ... #InfectiousDiseases
Psittacosis 
Pathogen: Chlamydia psittaci - obligate intracellular gram negative
Transmission:
 • Birds are the primary reservoir
 •
intracellular gram negative ... hemoptysis, diarrhea Diagnosis ... #microbiology #diagnosis ... management #treatment #infectiousdiseases
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
TB • LTBI is diagnosed ... testing (TST) False-negative ... because false-negative ... sample = 95% • A negative ... LatentTB #ActiveTB #InfectiousDiseases
The Spectrum of Tuberculosis

As shown in the graphic from our Primer, exposure to M. tuberculosis can
memory, can have negative ... @paimadhu ‏ #Diagnosis ... #InfectiousDiseases
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
infections • Gram-negative ... Cholecystitis Diagnosis ... fusiform gram-negative ... microbiology #zoonotic #infectiousdiseases ... #diagnosis #management
CAPD-associated peritonitis (Continuous Ambulatory Peritoneal Dialysis) - 5 Things To Know
Diagnosis (Two of the following):
(1) Clinical
Things To Know Diagnosis ... • 15-35% Gram negative ... Others • Culture negative ... #peritonitis #Diagnosis ... #Management #InfectiousDiseases