Short Antibiotics Match Outcomes in Pneumonia

Only about one in ten hospitalized patients qualified for shorter therapy in a large US analysis

By
Kathryn Wighton
April 14, 2026
3 min

MDSpire News

Objective:

To evaluate the outcomes of shorter antibiotic courses compared to longer courses in hospitalized patients with community-acquired pneumonia who are clinically stable by day 3.

Approach:

Key Findings:

Mortality was less than 1% in both short- and longer-duration groups.
Readmission rates were about 8% to 9% within 30 days.
Urgent health care visits and Clostridioides difficile infections occurred at similar rates.
Antibiotic-associated adverse events were uncommon and similar between groups.

Interpretation:

Findings apply to clinically stable patients hospitalized with community-acquired pneumonia, but only about 10% met eligibility criteria, limiting generalizability.

Limitations:

Few patients received short-course therapy.
Residual confounding may have influenced results.
Low event rates limited precision.
Follow-up was limited to 30 days.

Conclusion:

Shorter antibiotic courses were associated with similar outcomes compared to longer courses in clinically stable patients, supporting guidelines for shorter treatment durations.