Trial Search Results

Understanding Immunity to the Flu Vaccine in COVID-19 Patients

The purpose of this study is to measure immunity to the flu vaccine over time in patients who had COVID-19. Adults who have been diagnosed with COVID-19 as well as controls without COVID-19 will be invited to participate in this study.

Stanford is currently not accepting patients for this trial.

Lead Sponsor:

Stanford University

Collaborator: National Institute of Allergy and Infectious Diseases (NIAID)

Stanford Investigator(s):


  • Biological: Flu shot


Inclusion Criteria:

   - Adults enrolled in study 55689 (NCT04373148)

   - Adults diagnosed with severe or moderate COVID-19 at least 2 months prior enrollment

   - Adults without COVID-19 diagnosis for healthy controls

   - Healthy controls may also be recruited outside of IRB#55689

Exclusion Criteria:

   - Received the influenza vaccine less than 4 months ago

   - Pregnant or lactating

   - Patients with special risks attendant to venipuncture

   - Adults who test positive for COVID-19 (pcr test)

   - Use of immunomodulatory medications

   - Immunodeficiency or autoimmune disease

Ages Eligible for Study

18 Years - 64 Years

Genders Eligible for Study


Not currently accepting new patients for this trial

Contact Information

Stanford University
School of Medicine
300 Pasteur Drive
Stanford, CA 94305