265 results
Pathogenesis of meningitis 

Risk factors for pathogen entry include immunocompromised state (HIV positive, cancer, chemotherapy patients,
Risk factors for pathogen ... bacteremia, viremia, endocarditis ... Following pathogen ... which damages pathogens
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
Infective endocarditis ... prosthetic valve endocarditis ... #Infective #Endocarditis ... Microbiology #Diagnosis #Pathogens
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
for Infective Endocarditis ... #Infective #Endocarditis ... #Bacteria #Pathogens
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
with Infective Endocarditis ... non-bacterial pathogen ... #Infective #Endocarditis
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
Capnocytophaga Pathogen ... 13%), Pneumonia, Endocarditis
Recommendations for specific antimicrobial therapy in bacterial meningitis based on isolated pathogen and susceptibility testing.

#IDSA #Meningitis
based on isolated pathogen ... Antimicrobial #Pathogens
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Culture-Negative Infective Endocarditis ... PCR for specific pathogens ... Negative #Infective #Endocarditis
Suspected catheter-related bloodstream infection - Management Algorithm
 • Temperature 37.8 C   • Rigors
metastatic infection (endocarditis ... • Resistant pathogens
Inflammatory Cascade: Pathogenesis and Clinical Findings
Continued Innate Immunity
 • Phagocytosis: (main mechanism) neutrophils and macrophages engulf
engulf foreign pathogens ... System: opsonize pathogen
Innate Immune Cells - Pathophysiology
The innate immune system consists of granulocytes, mast cells, natural killer cells,
require previous pathogen ... internalizing pathogens