Tag Archives: immunity

The Beautiful Immune System Lesson 4: Humoral and Cell-Mediated Immunity

If you haven’t been following my “beautiful immune system” lessons, I highly suggest you go back and read the first three lessons to catch up. These are short and simple lessons leading you through what will eventually be a great understanding of how the immune system works. I hope you enjoy! To the Beautiful Immune System Lessons.

Adaptive immunity (and innate immunity) can be separated further into two types of immunity: humoral immunity and cell-mediated immunity.

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Herd Immunity

Vaccinating your child is the one way that you can shield them from getting some seriously harmful diseases. But did you know that when you vaccinate your child you are also helping to keep other children safe from harmful diseases? You are! And you are especially helping prevent disease in those children who are too sick to get vaccines for themselves. A phenomenon called herd immunity occurs when most of the people in a community are vaccinated against a disease, leaving no one to carry it, and thus, protecting those people who cannot be vaccinated. This way, even those who are not eligible for certain vaccines—such as babies, pregnant women, or people who are sick with immune system-compromising illnesses—get some protection.