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Just like the gadgets we use every day are designed with a limited lifespan in mind, the immune system also experiences a type of “planned obsolescence” as we age. The immune system runs best for a ...

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 ...

Scientists are getting a better handle on the complexities of how immunity works. Attentive readers might have noticed my absence over the last couple of weeks. I’ve been trying to recover from a bout ...

Disease can arise both when immune cells are too active and when they're not active enough. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. For ...

Herd immunity can work against the spread of some diseases. There are several reasons why it often works. There are also many reasons why herd immunity won’t yet work to stop or slow the spread of ...

It’s cold and flu season and most of us will eventually encounter a virus. So, how does our immune system work to keep us healthy? According to Michaela Gack, PhD, Scientific Director of the Cleveland ...

Cases in Texas and other states are on the rise, but most of the infected were not vaccinated. Here’s what to know about the very contagious disease and how immunity works. Today, the U.S. gives ...

We all get sick sometimes. Even something pretty minor, like a cold or flu, can be enough to disrupt your life for a few days. When you have a minor illness, it does more than just make you feel ...