vaccination threshold

The vaccination threshold is the percentage of a population that needs to be immunized to effectively prevent the spread of a contagious disease. When enough people are vaccinated, it becomes difficult for the disease to spread widely, protecting even those who can't be vaccinated. This threshold varies depending on how easily the disease spreads; more infectious diseases require a higher percentage of vaccinated individuals. Achieving this level helps establish herd immunity, reducing outbreaks and protecting community health.