Virgin Islands, and U.S. possessions in the Pacific. HIV/AIDS HRSA's Ryan White HIV/AIDS Program provides primary care, support services and antiretroviral drugs for about 530,000 low-income people. The program also funds training, technical assistance and demonstration projects designed to slow the spread of the epidemic in high-risk populations. These services avert more costly in-patient care and improve the quality of life for those living with the virus. Maternal and child health HRSA administers a broad range of programs for pregnant women, mothers, infants, children, adolescents and their families, and children with special health care requirements. The largest of the programs, the Maternal and Child Health Services Block Grant to States, supports local efforts to reduce infant mortality and childhood illness and control costs associated with poor pre- and neo-natal care. The Block Grant includes State Formula Block Grants, Special Projects of Regional and National Significance (SPRANS), and Community Integrated Service Systems (CISS) projects. Other vital missions include Universal Newborn Hearing Screening, Traumatic Brain Injury, Healthy Start, Sickle Cell Service Demonstrations, Family to Family Health Information Centers, Emergency Medical Services for Children, and autism. Among the most successful public health initiatives in U.S. history, HRSA's Maternal and infant health programs annually serve more than 34 million people. Rural health In order to make health care more accessible for the 60 million residents of rural America, HRSA funds programs that integrate and streamline existing rural health care institutions and aid in the recruitment and retention of physicians in rural hospitals and clinics. HRSA's telehealth program uses information technology to link isolated rural practitioners to medical institutions over great distances. Many of these activities are designed and operated out of the Agency's Office of Rural Health Policy. Health workforce The agency strives to ensure a health care workforce that is diverse, well-trained and adequately distributed throughout the nation. In exchange for financial assistance through National Health Service Corps scholarships and student loan repayment programs, more than 28,000 clinicians have served in some of the most economically deprived and geographically isolated communities in America over the past 35 years. Health systems HRSA oversees the nation's organ and tissue donation and transplantation systems,"New Transplants Are Changing Lives". University Wire May 22, 2018.</ref> by way of supervising the work of the United Network for Organ Sharing, a nonprofit organization that is contracted to run the complex organ and tissue donation and transplantation system in the U.S.