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Alcohol use disorders and pneumonia: susceptibility and severity
Asad J Gandapur1, Todd A Wyatt2,3
1Department of Internal Medicine, Division of Pulmonary, Critical Care & Sleep, University of Nebraska Medical Center, Omaha, NE, USA.
Expert Review of Respiratory Medicine
|September 10, 2025
Summary
Alcohol use disorder (AUD) increases pneumonia risk and severity. Early screening and integrated treatment for AUD and infections are crucial for better patient outcomes.
Area of Science:
- Pulmonology
- Infectious Diseases
- Addiction Medicine
Background:
- Alcohol use disorder (AUD) is a significant public health concern with widespread physiological impacts.
- AUD is often overlooked as a critical risk factor in managing pneumonia, particularly in vulnerable populations.
- Understanding the link between AUD and pneumonia is vital for effective prevention and treatment strategies.
Purpose of the Study:
- To investigate the association between alcohol use disorder and pneumonia.
- To examine how AUD elevates the risk and severity of lung infections.
- To review the mechanisms linking AUD to increased susceptibility and poorer outcomes in pneumonia patients.
Main Methods:
- Comprehensive literature search conducted in PubMed and Open Evidence.
- Review of epidemiological data and current research findings on AUD and pneumonia.
- Analysis of mechanisms by which alcohol consumption impacts infection risk and disease severity.
Main Results:
- Individuals with AUD exhibit higher rates of both community-acquired and hospital-acquired pneumonia.
- Alcohol consumption impairs immune responses, increasing susceptibility to infections.
- AUD-related comorbidities worsen pneumonia outcomes, leading to increased hospitalizations, ICU admissions, and mortality.
Conclusions:
- Integrated healthcare strategies addressing both AUD and infection prevention are essential.
- Clinicians must screen for AUD to improve management of pneumonia in affected individuals.
- Combined treatment approaches can significantly enhance patient outcomes and reduce mortality associated with pneumonia in the context of AUD.
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