| |
| | THE MERCK MANUAL, Sec. 6, Ch. 73, Pneumonia |
 | | Pneumonia (pneumonitis) may affect an entire lobe (lobar pneumonia), a segment of a lobe (segmental or lobular pneumonia), alveoli contiguous to bronchi (bronchopneumonia), or interstitial tissue (interstitial pneumonia). |
 | | Mycoplasma pneumoniae, a bacteria-like organism, is particularly common in older children and young adults, typically in the spring. |
 | | Predisposing factors include upper respiratory viral infections, alcoholism, institutionalization, cigarette smoking, heart failure, chronic obstructive airway disease, age extremes, debility, immunocompromise (as in diabetes mellitus and chronic renal failure), compromised consciousness, dysphagia, and exposure to transmissible agents. |
| www.merck.com /pubs/mmanual/section6/chapter73/73a.htm (573 words) |
|