After getting sick, Matt wonders how a small medicine can help his body feel better. Boo appears and takes him back in time to meet Alexander Fleming, the scientist who discovered penicillin and changed the future of medicine.

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In this engaging STEM adventure, children learn how a tiny discovery in a laboratory helped doctors save millions of lives. Boo and Matt reveal how science, curiosity, and observation can lead to discoveries that help the whole world.

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A wonderful educational story introducing kids to biology, medicine, and the science of healing.