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Herd immunity
01
群体免疫, 集体免疫
a situation where enough people in a community are immune to a disease, making it less likely to spread
What is "herd immunity"?
Herd immunity refers to a situation where a large portion of a population becomes immune to a disease, either through vaccination or previous infection, providing indirect protection to those who are not immune. When enough people in a community are immune to a disease, it becomes more difficult for the disease to spread from person to person. Herd immunity is important for protecting vulnerable individuals who cannot receive vaccines because of medical reasons or age, such as newborns or individuals with certain medical conditions. The level of immunity needed to achieve herd immunity depends on the contagiousness of the disease and varies from one disease to another.
herd immunity
n
例子
The government implemented vaccination campaigns to address endemic diseases such as measles and polio, aiming to achieve herd immunity within the population.
