Chlamydial pneumonia

Chlamydial pneumonia is an acute lower respiratory tract infection caused by obligate intracellular bacteria of the genus *Chlamydia*, most commonly *Chlamydia pneumoniae* and, in vertically exposed infants, *Chlamydia trachomatis* It affects the pulmonary parenchyma and airways across various populations, including school-aged children, adults, the elderly, and neonates Pathophysiologically, the pathogen invades respiratory epithelial cells and alveolar macrophages, causing mucosal inflammation...

Chlamydial pneumonia is an acute lower respiratory tract infection caused by obligate intracellular bacteria of the genus *Chlamydia*, most commonly *Chlamydia pneumoniae* and, in vertically exposed infants, *Chlamydia trachomatis*

It affects the pulmonary parenchyma and airways across various populations, including school-aged children, adults, the elderly, and neonates Pathophysiologically, the pathogen invades respiratory epithelial cells and alveolar macrophages, causing mucosal inflammation, impaired mucociliary clearance, and patchy interstitial or alveolar infiltration Clinically, it frequently presents as an atypical, community-acquired pneumonia characterized by an indolent onset of low-grade fever, headache, phar...

Pathophysiologically, the pathogen invades respiratory epithelial cells and alveolar macrophages, causing mucosal inflammation, impaired mucociliary clearance, and patchy interstitial or alveolar infiltration

Clinically, it frequently presents as an atypical, community-acquired pneumonia characterized by an indolent onset of low-grade fever, headache, pharyngitis, hoarseness, and a prolonged, nonproductive or staccato cough