Sciencespeaking topic
Some immune cells memorize a single enemy for life; years later when the same microbe returns they recognize it and strike at once. So the immune system has a 'memory,' learning and remembering just like the brain. A vaccine is really a way of teaching that memory a lesson.
— immune memory
practice with this topic
Set the timer (5-30 min), take 20 seconds of prep if you like, start talking. Jot your thoughts onto the sticky-note board.
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