Vaccines prevent the spread of disease from one person to another. The more people that are immunized, the less chance a disease has to circulate.
When you get immunized from a specific disease, it not only protects you but it also helps protect your loved ones. When more and more people in a community also get immunized, it helps protect those who have very weak immune systems. When immunization rates are low, the diseases and related deaths increase in frequency.
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