Pediatric Infectious Diseases, a division of the University of Louisville, operates a range of research and development programs. The division specializes in vaccine development services. It maintains affiliations with the Louisville Metro Health Department. The University of Louisville operates a variety of academic and enrichment programs. The university maintains more than 10 colleges and schools. It also maintains the National Crime Prevention Institute, which spreads across an area of over 240 acres. Established in 1798, the university enrolls nearly 21,600 students. It administers programs ion music, nursing, engineering, dentistry and medicine. The University of Louisville employs a staff of up to 6,000 individuals.