The National Institutes of Health (NIH) has posted a grant opportunity titled "Limited Competition: Specific Pathogen Free Macaque Colonies (U42 Clinical Trial Not Allowed)". This grant aims to provide continuing support for specific pathogen-free (SPF) macaque colonies that support Human Immunodeficiency Virus (HIV)/Acquired Immunodeficiency Syndrome (AIDS) research. The breeding colonies of SPF macaques are essential for sustaining appropriate research related to HIV/AIDS. These macaques are genetically characterized for major histocompatibility complex (MHC) class I types, which have significant effects on macaque immune responses to Simian Immunodeficiency Virus (SIV) and human immune responses to HIV. The grant does not require cost sharing or matching and is categorized under health funding activities. Public and State Controlled Institutions of Higher Education are eligible to apply. For more information, please visit the grant opportunity page.