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What is Immunity and Why is it Important?

Most of us understand the concept of immunity, but do we really understand what it is, and how it works? Here, learn the in's and out's of immunity and why it's so important.

We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.