New clinical recommendations emphasize the safety and importance of COVID-19, influenza, and RSV vaccines for individuals with weakened immune systems.



RT’s Three Key Takeaways:

  1. Vaccine Recommendations: The Infectious Diseases Society of America strongly recommends that people with weakened immune systems receive vaccinations against COVID-19, influenza, and respiratory syncytial virus for the 2026-2027 season.
  2. Co-Administration Timing: Clinicians can administer all three seasonal respiratory immunizations during a single appointment, ideally scheduled prior to immunosuppressive procedures such as chemotherapy or organ transplants.
  3. Demonstrated Efficacy: An independent scientific review confirmed that these vaccines protect immunocompromised patients against hospitalization and severe infection with minimal risk of serious adverse effects.


The Infectious Diseases Society of America (IDSA) issued guidance strongly recommending vaccination against COVID-19, influenza, and respiratory syncytial virus (RSV) for individuals with weakened immune systems, according to the organization.

According to IDSA, the recommendations for the 2026-2027 respiratory virus season follow an independent review of current scientific data conducted through the Vaccine Integrity Project. The review determined that these vaccines consistently protect immunocompromised patients against severe illness and hospitalization, while showing little to no serious adverse effects.

“People with compromised immune systems face a greater risk of hospitalization, critical illness and death from respiratory viruses, and they deserve clear guidance grounded in the best available scientific evidence,” said Ronald G Nahass, MD, president of IDSA, in a news release. “The latest evidence firmly supports our continued strong recommendation for COVID-19, influenza and RSV vaccination. Getting vaccinated early this fall remains one of the most effective ways to prevent severe illness.”

Clinical Timing and Co-administration

In its clinical guidance, IDSA noted that healthcare clinicians can administer the COVID-19, influenza, and RSV shots during the same visit. When feasible, the society advised providers to time vaccination before medical treatments that suppress the immune system, including chemotherapy and organ transplants. Additionally, IDSA emphasized that household members and close contacts of immunocompromised individuals should remain current on recommended vaccines to reduce transmission risk.

“At a time when patients and physicians cannot always look to the federal government for clear and timely vaccine guidance, it is especially important for the medical community to work together in a coordinated and transparent way to provide recommendations grounded in the best available evidence,” said Nahass, president of IDSA. “Patients should be able to hear a clear and consistent message from the medical organizations that represent their physicians — and from the physicians they trust — about how to protect themselves and their families.”

Coordinated Guidance Across Medical Societies

IDSA stated that its recommendations complement 2026-2027 vaccination guidance issued by the American Academy of Family Physicians (AAFP), the American Academy of Pediatrics (AAP), and the American College of Obstetricians and Gynecologists (ACOG) for other patient cohorts. The specialty societies collaborated alongside the American Medical Association (AMA) and the Vaccine Integrity Project to align the schedule and release of the updated clinical recommendations.