The Centers for Disease Control and Prevention - ERA is offering a nationwide cooperative agreement grant opportunity titled "Nationwide Cohort to Estimate Burden of Respiratory Viruses and Immunologic Response (Blood Donor Cohort)". This project aims to establish and sustain a national longitudinal cohort of repeat blood donors to monitor changes in antibody titers against common or novel respiratory viruses. The cohort will also survey donors to assess risk factors for infection, vaccination status, respiratory symptoms, and severe illness. Additionally, a repository will be established for further analysis as new assays to measure the immune response to respiratory virus infections are developed. The grant has an estimated total program funding of $26,500,000 and expects to make one award. The close date for electronically submitted applications is February 16, 2024, at 11:59 pm ET. For more information, contact Dr. Jamal Bankhead at JBankhead@cdc.gov.