7 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... infective endocarditis ... Tropheryma whipplei, Fungi ... #Endocarditis #InfectiousDiseases ... #Microbiology #CNIE
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
fastidious bacteria or fungi ... but important causes ... Tropheryma whipplei, Fungi ... bacteria) and 18S ( fungi ... differential #workup #infectiousdiseases
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Endocarditis Algorithm ... Noninfective Causes ... • HACEK • Culture-negative ... Gram-negative bacilli • Fungi ... Gram-negative bacilli • Fungi
Soil Related Infections - Differential Diagnosis Framework

Mechanism Of Infection:
 • Wound
 • GI: Ingestion, MUD, Contaminated
include: bacteria, fungi ... • Chlorella Fungi ... Soil-related endemic fungi ... cause primary pulmonary ... aspergillosis (cough, dyspnea
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
HIV • Recent infection ... (NTM) • Fungal ... infection • Mostly ... hemoptysis • Dyspnea ... NAA (PCR) and Culture
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
HIV • Recent infection ... (NTM) • Fungal ... infection • Mostly ... hemoptysis • Dyspnea ... NAA (PCR) and Culture
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... pain, hemoptysis, dyspnea ... • Sputum/Blood cultures ... Prevotella • Fungal ... Lung #Abscess #pulmonary