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Tag: Respiratory Tract Infections

link to Legionella pneumophila: Properties, Pathogenesis, Lab Diagnosis

Legionella pneumophila: Properties, Pathogenesis, Lab Diagnosis

Legionella is a faintly staining gram-negative pleomorphic rod, responsible for causing Legionnaires' disease; a severe form of atypical pneumonia, and Pontiac fever. Legionella was first...

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link to Laboratory Diagnosis of Mycobacterium tuberculosis Infection

Laboratory Diagnosis of Mycobacterium tuberculosis Infection

Mycobacterium tuberculosis (MTB) is the causative agent of tuberculosis (TB) in humans. It is a slightly curved rod arranged singly or in groups. Mycobacterium tuberculosis grows very slowly, taking...

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link to Mycoplasma pneumoniae: Properties, Disease, Diagnosis

Mycoplasma pneumoniae: Properties, Disease, Diagnosis

Mycoplasma is the smallest (0.2 - 0.8 micrometers) free-living bacteria (light microscopy cannot detect it) that can pass through some filters (0.45-μm-pore-size) used to remove bacteria. It has the...

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link to Sputum Sample: Collection, Transport, Staining, and Culture 

Sputum Sample: Collection, Transport, Staining, and Culture 

Sputum, also known as phlegm, is a thick type of mucus in a person's lungs suffering from an infection or chronic illness affecting the lungs or airways. The first morning expectorated sputum sample...

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link to Haemophilus influenzae: Characteristics, Pathogenesis and Lab Diagnosis

Haemophilus influenzae: Characteristics, Pathogenesis and Lab Diagnosis

Most Haemophilus species are normal inhabitants of upper respiratory tract of humans and other animals. The species of Haemophilus that most frequently cause human infections are H. influenzae...

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link to Streptococcus pneumoniae: Properties, Pathogenesis, and Diagnosis

Streptococcus pneumoniae: Properties, Pathogenesis, and Diagnosis

Streptococcus pneumoniae (pneumococci) is a part of the normal nasopharyngeal and oropharyngeal flora. It is an important etiological agent of upper and lower respiratory tract infections (URTI...

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