Herd Immunity 3 : The immunity of a group or community. The resistance of a group to invasion and spread of an infectious agent, based on the resistance to infection of a high proportion of individual members of the group
Crisis and Emergency Risk Communication (Be First. Be Right. Be Credible.), Epidemiology and Acronyms Terms (Crisis and Emergency Risk Communication CERC), U.S. Department of Health and Human Services, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA 2014. http://emergency.cdc.gov/cerc/resources/pdf/cerc_2 014edition.pdf, (Emr Common Lang - Amer) {932}