Pneumonia

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Abstract
SIR WILLIAM OSLER pointed out more than 100 years ago that pneumonia was a frequent, nonpainful, lethal event in elderly patients.1 With advances in care, pneumonia no longer seems to portend such a poor prognosis. Many patients with community-acquired pneumonia (CAP) do not require hospitalization, and most who are admitted to the hospital survive to discharge. Nevertheless, CAP remains common and is still one of the leading causes of hospital admission and death throughout the world, including the United Kingdom2 and United States.3 Key risk factors seem to be advancing age and underlying disease.4-16