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Expected Duration

How long pneumonia lasts can vary from a few days to a week or longer, depending on how early you start antibiotics and what other medical problems you may have. Antibiotic treatment for pneumonia usually lasts from 5 to 14 days. Many people find that it takes a few weeks to several weeks to regain the level of energy they had before the pneumonia.

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From Health A-Z, Harvard Health Publications. Copyright 2007 by the President and Fellows of Harvard College. All rights reserved. Written permission is required to reproduce, in any manner, in whole or in part, the material contained herein. To make a reprint request, contact Harvard Health Publications. Used with permission of StayWell.

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