60 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
for Infective Endocarditis ... ) - Culture negative ... #Infective #Endocarditis ... 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 ... infective endocarditis ... Sara Dong @swinndong ... #differential #diagnosis ... InfectiousDiseases
HACEK is the acronym commonly used to describe and help doctors to remember a group of
fastidious Gram-negative ... cause infective endocarditis ... less than 3% of endocarditis ... More commonly endocarditis ... #Diagnosis #InfectiousDiseases
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
infections • Gram-negative ... 13%), Pneumonia, Endocarditis ... Treatment: • 50% ... microbiology #zoonotic #infectiousdiseases ... #treatment
Candidemia Workup and Management - IDSA Guidelines
1) Antibiotics
 • Empiric: Echinocandins (e.g. micafungin) for most patients
Candidemia Workup ... Susceptibilities, Negative ... clinical concern for endocarditis ... Sara Dong @swinndong ... #candidiasis #treatment
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Infective Endocarditis ... BCNIE Diagnostic ... #Infective #Endocarditis ... #diagnosis #differential ... #workup #infectiousdiseases
COVID-19 review…here is a list of some of the drugs that are currently being used or
most effective treatments ... about the study design ... #CoronaVirus #Treatment ... Pandemic #Outbreak #InfectiousDiseases ... Pharmacotherapy #Pharmacology
Psittacosis 
Pathogen: Chlamydia psittaci - obligate intracellular gram negative
Transmission:
 • Birds are the primary reservoir
 •
intracellular gram negative ... hemoptysis, diarrhea Diagnosis ... first line of treatment ... #microbiology #diagnosis ... #infectiousdiseases
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Alpha-hemolytic, Catalase Negative ... peritonitis, and endocarditis ... Diagnosis: • Physical ... Specificity of 97%) Treatment ... #microbiology #diagnosis
Tuberculosis Testing

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