Това са думите examples, свързани с herd-immunity. Щракнете върху която и да е дума, за да отидете на страницата с подробности за думата. Или, отидете на дефиницията на herd-immunity.
One reason why immunization works is the herd immunity it gives.
We vaccinate the masses, causing herd immunity, to protect the relatively few who would otherwise become ill and suffer devastating consequences.
Herd immunity occurs when enough people in a population are immunized against a disease so that it also protects the unvaccinated.