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Activation usually begins with an initial exposure of immune cells to intruders, like bacteria, or danger signals, like the insides of dead cells. For example, Macrophages get activated when they notice an enemy and release cytokines that
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Greg’s 2025 Year in Books
Take a look at Greg’s Year in Books, including some fun facts about their reading.
734 books
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45 friends
40 books
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3,886 friends
555 books
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52 friends
4,065 books
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86 friends
241 books
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49 friends
283 books
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40 friends
4,332 books
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147 friends
352 books
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19 friends
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