Dr. William Reidy is the deputy director for ICAP’s Strategic Information unit. Dr. Reidy joined ICAP in 2009 as an associate research scientist and later as a senior strategic information advisor. He is also an epidemiologist at the Mailman School of Public Health, where he teaches implementation science research, supporting the global scale-up of HIV/AIDS prevention, and medical care services. Dr. Reidy has worked as an investigator or in a strategic information role on projects in numerous countries, including Eswatini, Kenya, Myanmar, Tanzania, and South Africa. His strategic information support of program scale-up includes strengthening systems for HIV medical care, prevention of mother-to-child transmission of HIV (PMTCT), HIV testing and counseling, and HIV prevention programs for key populations, including pre-exposure prophylaxis.