The National Institutes of Health (NIH) has announced a Notice of Funding Opportunity (NOFO) for the Rational Design of Vaccines Against Hepatitis C Virus (HCV), inviting applications for cooperative agreements to establish Research Centers focused on vaccine development. The initiative aims to advance HCV vaccine candidates through design, optimization, and evaluation, emphasizing the structural and immunological foundations for broad protection against the virus, while leveraging existing human cohorts and animal models for evaluation. NIH plans to allocate $8.3 million in FY 2026 for 2-4 awards, with each project having a maximum budget of $2 million per year and a project period of up to five years; applications are due by November 7, 2025, and interested parties can reach out to NIH Grants Information at grantsinfo@nih.gov for further inquiries.