Pulmonary Infections
نویسندگان
چکیده
Infections in the respiratory tract are very common but majority involve the upper respiratory system. Pneumonia is usually caused by inhalation of infecting organisms or the same may reach the lung via bloodstream. Pulmonary pathogens can cause tissue damage by a direct invasive cytolytic process or by releasing toxins (endotoxins and/or exotoxins). Acute inflammation may lead to complete resolution, destructive pneumonia with abscess formation, healing by fibrosis or chronic inflammation. Various infective agents causing pneumonia include viruses, bacteria, Mycobacteria, fungi, Chlamydiae, Mycoplasmas or parasites.
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