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Why aging leads to increased susceptibility to infection
1Division of Geriatrics, University of Michigan Medical School, Ann Arbor.
Geriatrics
|February 1, 1991
Summary
Elderly individuals face increased infection risks due to aging immune systems. Proactive measures like skin care, oral hygiene, and judicious medication use can significantly reduce infection susceptibility and improve health outcomes.
Area of Science:
- Gerontology
- Infectious Diseases
- Immunology
Background:
- The aging population is highly susceptible to infections.
- Intrinsic immune system defects and reduced host defenses contribute to this vulnerability.
Purpose of the Study:
- To identify modifiable factors that physicians and patients can address to decrease infection risk in the elderly.
- To emphasize the importance of early detection and treatment of infections in older adults.
Main Methods:
- Review of factors contributing to infection risk in the elderly.
- Discussion of preventative strategies targeting skin care, oral hygiene, urinary tract management, medication use, and nutritional status.
Main Results:
- Meticulous skin care reduces soft tissue infection risk.
- Improved oral hygiene and xerostomia management can restore normal oral flora.
- Appropriate urinary tract management, minimizing catheter use, lowers urinary tract infection (UTI) rates.
- Judicious prescribing of medications affecting cognitive function prevents aspiration pneumonia and urinary retention.
- Correction of protein malnutrition enhances immunity and skin integrity.
Conclusions:
- While some aging-related immune defects are unalterable, many infection risks are modifiable.
- Physicians must maintain high clinical suspicion for subtle infection signs in the elderly for timely diagnosis and treatment.