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 ...

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 ...

Herd immunity is the name for a point in time when it's hard for a disease to spread through a group of people. The idea of herd immunity works for some diseases, such as measles. But it's a harder ...

Colorado measles vaccination rates are falling behind other states, leading to a lower herd immunity among children.

When my kids were toddlers, almost everyone in their Montessori preschool classroom caught chicken pox all at once. One after another, they fell like a train of dominoes the week before Thanksgiving, ...

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 ...