Analysis of the Specificity and Persistence of Nasal Immune Responses to Respiratory Viral Antigens in Immunocompromised and Healthy Cohorts

Inclusion Criteria

• •Informed Consent: Participants must have signed an informed consent form.
• •Age Range: Participants aged between 18 and 90 years.
• •Healthy Immunocompetent Donors: no underlying medical conditions declared, no clinical history of immunodeficiency or use of immunosuppressive medications.
• •Immunocompromised Patients: subjects with medical conditions or treatments associated with significant impairment of the immune system. This may include organ or stem cell transplants, ongoing immunosuppressive therapies, documented genetic immunosuppression.