What is the benefit of vaccinating a lot of people in a community at risk?

When a lot of people in a community are vaccinated, it becomes difficult for the disease to circulate because most of the people it encounters are protected and cannot catch it. The more people who get vaccinated the lesser the risk of getting the disease in a community and this concept is called herd immunity. This is the reason why it is important for all eligible people in our communities to be vaccinated against all vaccine-preventable diseases.

Herd immunity also prevents disease outbreaks by making it difficult for the disease to spread since most people will be protected. The disease will become more and more rare, sometimes even disappearing entirely from your area and in the country.

Herd immunity thresholds differ from one vaccine to the other.

Herd immunity for COVID 19 can be reached if 60% or more of the population at risk is vaccinated.