Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 2/9/2026

Outpatient Management and Prevention of RSV in Adults ≥ 65 Years

Acute Outpatient Care

  • For stable outpatients ≥ 65 years with confirmed or suspected RSV infection, management is limited to supportive care (hydration, antipyretics, supplemental oxygen if needed); no antiviral therapy has demonstrated efficacy for established disease. 1
  • In patients with a bothersome dry cough, symptomatic relief may be provided with dextromethorphan or codeine. 2
  • Expectorants, mucolytics, antihistamines, and bronchodilators should be avoided because they have not shown benefit in acute lower‑respiratory‑tract infections. 2

Vaccination Recommendations

  • Universal recommendation: All adults ≥ 75 years should receive a single dose of an RSV vaccine. [4][5][6][7][8][9]
  • Targeted recommendation for adults 65‑74 years with chronic conditions:
    • Chronic respiratory disease (e.g., COPD, asthma, bronchiectasis, interstitial lung disease). [4][5]8
    • Chronic heart failure or coronary artery disease. [4][5]8
    • Chronic kidney disease. [4][8]
    • Diabetes mellitus. [4][8]
    • Immunocompromise (malignancy, immunosuppressive therapy, transplantation). [4][8]
    • Residence in long‑term care facilities. [4][8]

Available Vaccines and Efficacy

Vaccine (Manufacturer) Reported Efficacy* Duration of Observed Protection
RSVPreF3 (Arexvy, GSK) 82.6 % against RSV‑associated lower‑respiratory‑tract disease in season 1; cumulative 62.9 % over ≥ 3 seasons ≥ 3 seasons
RSVpreF (Abrysvo, Pfizer) 88.9 % against severe disease (≥ 3 symptoms) in season 1; maintained efficacy over ≥ 2 seasons ≥ 2 seasons

Timing and Co‑administration

  • Vaccination should ideally be administered between September and November to coincide with the RSV season. 1
  • RSV vaccine may be given concurrently with the influenza vaccine at separate injection sites; a modest reduction in antibody titers has been observed, but the clinical relevance is uncertain. 1

High‑Risk Features Requiring Close Follow‑up

  • Advanced age (≥ 75 years): Associated with higher rates of hospitalization, longer illness duration, greater disease severity, and increased mortality. 3
  • Frailty, dementia, or residence in a nursing home: Linked to poorer clinical outcomes. 3

REFERENCES