A member asked:

Could you tell me what happens if you leave pneumonia untreated?

4 doctors weighed in across 2 answers
Dr. Michael Ein answered

Specializes in Infectious Disease

See below: Some cases will get better on their own but most will get worse and require hospitalization.

Answered 4/19/2013

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Can be very serious: Pneumonia in the days before antibiotics had a risk of death of about 30-40% in the United States. Because of this risk, pneumonia was called the "captain of the men of death" in the early 1900's by Dr William Osler. People who are very young, very old, or very sick due to other illnesses are at a greater risk of death due to pneumonia.

Answered 4/15/2018

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