Rotary's humanitarian goals include the eradication of polio by immunizing every child under 5 in the world. As a result of the efforts of Rotary and its global partners, more than one billion children have been immunized against polio since 1985. Through The Rotary Foundation's POLIOPLUS program, more than one million Rotary volunteers from around the globe have contributed to the success of polio eradication efforts. Rotary is the key private sector partner in this international health effort. Public-sector partners include the World Health Organization (WHO), UNICEF and the U.S. Centers for Disease Control and Prevention (CDC).