7 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
for Infective Endocarditis ... Native valves ... Histoplasma) - Culture ... #Endocarditis # ... #Differential #InfectiousDiseases
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
negative infective ... endocarditis Bartonella ... #negative #Endocarditis ... #InfectiousDiseases ... #Microbiology #
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
TB AFB smear microscopy ... because false-negative ... Mycobacterial culture ... Mycobacterial culture ... #InfectiousDiseases
Aeromonas spp - Diagnosis and Management Summary
Aeromonas spp: Gram-negative Rods, oxidase positive and glucose fermenter.
Virulence: Toxin
spp: Gram-negative ... Presentations: • Diarrhea ... wound or blood cultures ... Diagnosis #Management #microbiology ... #InfectiousDiseases
Psittacosis 
Pathogen: Chlamydia psittaci - obligate intracellular gram negative
Transmission:
 • Birds are the primary reservoir
 •
intracellular gram negative ... pain, hemoptysis, diarrhea ... test • PCR • Culture ... Chlamydia #psittaci #microbiology ... management #treatment #infectiousdiseases
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
infections • Gram-negative ... 13%), Pneumonia, Endocarditis ... microorganism (Culture ... Capnocytophaga #canimorsus #microbiology ... #zoonotic #infectiousdiseases
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
Endocarditis - Overview ... Hypercoagulable (APLAS) Microbiology ... aureus, Coagulase-negative ... Negative: • Bartonella ... Diagnosis #cardiology #infectiousdiseases