The National Institutes of Health (NIH), through the National Institute of Allergy and Infectious Diseases (NIAID), is inviting applications for the Investigator Initiated Program Project Grants aimed at advancing research in areas pertinent to the NIAID mission. This program encourages small businesses to propose innovative projects that explore the biology and pathogenesis of microbes, immune system functions, and the development of vaccines and therapeutics for infectious and immune-mediated diseases. The grant does not require cost-sharing or matching, with an estimated award date set for December 1, 2026, and applications are due by January 25, 2026. For further inquiries, interested applicants can contact Dr. Chelsea Boyd at chelsea.boyd@nih.gov or by phone at 301-761-6664.