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Herd immunity is important because it defines when a whole community is protected. That includes people who haven't caught the disease, people who had the illness and recovered, and people who got a ...

Herd immunity occurs when enough people in a group are immune to a specific infection that it cannot spread easily from person to person. Vaccination programs have been successful in creating herd ...

To stop the spread of an infectious disease like measles, you don’t have to vaccinate everyone. But you do have to vaccinate many. Just how many? To let you discover for yourself, we simulated an ...

In this segment, Dr Jacobson discusses the importance of vaccine efficacy in controlling measles outbreaks. The measles vaccine is 97% effective, meaning a small percentage of individuals do not ...

The initial epicenter within a Texas Mennonite community highlights how declining vaccination rates can lead to rapid disease transmission. While some may believe that abstaining from vaccination ...

Herd immunity occurs when enough people become immune to a disease, either through vaccination or previous infection. This can reduce the likelihood of it spreading and increase protection for ...