Definition indirekte Form des Schutzes vor einer ansteckenden Krankheit, der entsteht, wenn ein hoher Prozentsatz einer Population bereits immun geworden ist – sei es durch Infektion oder durch Impfung –, sodass sich die Ausbreitungsmöglichkeiten des Erregers innerhalb der Population insgesamt vermindern Reference "Wikipedia, Stichwort Herdenimmunität (16.4.2020)"
Definition level of immunity reached when a significant percentage of a population is immunised against a contagious disease, thereby providing a measure of protection for individuals who are not immune Reference "COM-Terminology Coordination, based on: Wikipedia > Herd immunity (14.1.2020)"
Comment Herd immunity, also known as indirect protection, community immunity, or community protection, refers to the protection of susceptible individuals against an infection when a sufficiently large proportion of immune individuals exist in a population. In other words, herd immunity is the inability of infected individuals to propagate an epidemic outbreak due to lack of contact with sufficient numbers of susceptible individuals. It stems from the individual immunity that may be gained through natural infection or through vaccination. The term herd immunity was initially introduced more than a century ago. In the latter half of the 20th century, the use of the term became more prevalent with the expansion of immunization programs and the need for describing targets for immunization coverage, discussions on disease eradication, and cost-effectiveness analyses of vaccination programs.Eradication of smallpox and sustained reductions in disease incidence in adults and those who are not vaccinated following routine childhood immunization with conjugated Haemophilus influenzae type B and pneumococcal vaccines are successful examples of the effects of vaccine-induced herd immunity.
Definition "niveau d'immunité atteint lorsqu'un certain pourcentage d'une population est immunisée contre une maladie contagieuse, permettant ainsi de diminuer le risque de rencontre entre un malade et une personne non immunisée et, dès lors, de diminuer le risque d'une épidémie; principe sur lequel repose la vaccination" Reference "Conseil-FR, d'après:- Site de l'Organisation mondiale de la santé, ""Immunité collective, la lutte contre la rougeole est une responsabilité collective"" (16.4.2020) - Site de franceinfo, ""Coronavirus: on vous explique le principe de l'""immunité collective"", sur laquelle misent le Royaume-Uni et les Pays-Bas"" (16.4.2020)"
SOCIAL QUESTIONS|health · AGRICULTURE, FORESTRY AND FISHERIES · AGRICULTURE, FORESTRY AND FISHERIES|agricultural activity|animal health
Definition in a nucleus breeding scheme (a cooperative breeding programme), a herd in which elite animals are concentrated and superior germ plasm is then distributed among cooperative herds Reference "Glossary of Alpaca Terms: http://www.alpacas.com/AlpacaLibrary/GlossaryMO.aspx (16/11/2007)"
AGRICULTURE, FORESTRY AND FISHERIES|agricultural activity|livestock farming
Definition Tréad a bhfuil beithígh ann ó dhéantar an t-ainmhí a chosc go dtí go bhfuil an t-ainmhí réidh le cur ar an margadh. Reference Sainmhíniú ceaptha.