Gov. Ricardo Roselló signed Ley 128, “Ley para la Promoción Educativa y Scientifica de Colonia de Monos de Cayo Santiago.” The law, among others, is aimed at protecting the monkeys, researchers, and the general public from the transmission of diseases between humans and monkeys. Common human diseases, such as TB and measles, can potentially wipeout the colony of monkeys if introduced to the island. Herpes B virus, a naturally-occurring virus to macaques, is fatal to humans.