La expresión del día: Inmunidad de rebaño

Feminine noun. It is a form of indirect protection from infectious disease that can occur with some diseases when a sufficient percentage of a population has become immune to an infection, whether through vaccination or previous infections, thereby reducing the likelihood of infection for individuals who lack immunity. Immune individuals are unlikely to contribute to disease transmission, disrupting chains of infection, which stops or slows the spread of disease. E.g.: Cuando los padres no vacunan a sus hijos, también perjudican a la población que los rodea, al reducir la llamada “inmunidad de rebaño”, que es la que impide los brotes: When parents do not vaccinate their children it also harms the population around them, by lowering “herd immunity,” which thwarts outbreaks. dc

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