The National Institutes of Health (NIH) has announced a funding opportunity titled "Limited Competition: Specific Pathogen Free Macaque Colonies (U42 Clinical Trial Not Allowed)" aimed at supporting breeding colonies of specific pathogen-free (SPF) macaques for research related to Human Immunodeficiency Virus (HIV) and Acquired Immunodeficiency Syndrome (AIDS). This initiative seeks to ensure the availability of SPF macaques, which are crucial for maintaining experimental integrity and personnel safety in HIV/AIDS research, by providing funding for colony maintenance, animal allocation to researchers, and ongoing viral testing to uphold SPF status. The grants will prioritize NIH-funded studies while ensuring that at least 50% of the animals are accessible to researchers outside the awarding institution, thereby fostering broader research applications. Interested applicants must submit their proposals by January 25, 2024, and can find additional information and contact details at grantsinfo@nih.gov or through the NIH grants website.