The National Institutes of Health (NIH) is offering a funding opportunity titled "Co-infection and Cancer (R01 Clinical Trial Not Allowed)" aimed at enhancing the understanding of infection-related cancers, particularly the roles of co-infections with multiple pathogens, excluding HIV. This initiative seeks to investigate the mechanisms and epidemiology of cancer linked to various infectious agents, addressing significant gaps in the current understanding of cancer etiology, with a focus on health disparities in underrepresented populations. Eligible applicants include a wide range of entities such as higher education institutions, nonprofits, and foreign organizations, with no budget limit for applications, although strong preliminary data is required. Key deadlines include an earliest submission date of January 5, 2025, and a close date of January 7, 2026. For further inquiries, applicants can contact NIH Grants Information at grantsinfo@nih.gov or visit the additional information link at https://grants.nih.gov/grants/guide/pa-files/PAR-25-082.html.