167 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative ... febrilepodcast] #BCNIE #Causes ... #culture #negative ... InfectiousDiseases #Microbiology
Septic Arthritis: Pathogenesis and clinical findings
Notes:
- Septic Arthritis is typically monoarticular & the knee is involved
Pathogenesis and clinical ... involved in >50% of cases ... a +ve culture Microbiology ... S.A. can also be caused ... SepticArthritis #pathophysiology
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
• Native and ... Endocarditis #Sources #Causes ... #Differential #Microbiology
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Streptocccus Pneumoniae Microbiology ... Alpha-hemolytic, Catalase Negative ... • Most common cause ... media • Important cause ... Pneumoniae #strep #microbiology
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
individual studies Clinical ... Proves cause-effect ... diseases, describe clinical ... that are true negatives ... but not on the causal
Anaplasma Infection - Anaplasma phagocytophilum
Pathophysiology: 
 • Obligate, intracellular bacteria
 • Transmitted via blacklegged tick —
phagocytophilum Pathophysiology ... is rare (< 10% cases ... ), cough (30% cases ... Infection #diagnosis #microbiology
Doxycycline - Coverage and Indications
 • Staphylococci (S aureus + CoNS)
 • The tick stuff: Borrelia
• "Atypical" causes ... • Acne • Gram-negative ... #pharmacology #microbiology
Pathogens in Pneumonia

Here is a quick review of the pathogens causing pneumonia (useful for enumerating differentials
your grand rounds/cases ... strep - Gram-negatives ... #Differential #Microbiology ... #Causes #Agents
Subjective Tinnitus: Pathogenesis and clinical findings
Subjective Tinnitus - Perceived sound with no acoustic stimulus, heard only
Pathogenesis and clinical ... refers to sound caused ... #Tinnitus #Causes ... #pathophysiology
Schizophrenia: Pathogenesis and Symptoms
Increased dopaminergic transmission in mesolimbic projection
-> Dopaminergic neurons here project into the limbic
is thought to cause ... is thought to cause ... Negative Symptoms ... Schizophrenia #pathophysiology ... psychiatry #positive #negative