The Humble Petri Dish and Modern Innovation

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2026-04-24 07:23:59 -

It started as a routine assignment in a winter microbiology lab. A student swabbed her arm to see what would grow on the agar. A week later, while her classmates stared at fuzzy colonies of yeast and bacteria, her plate was pristine—almost zero growth. What was the difference? It wasn't her immune system; it was the invisible layer of deodorant she had applied that morning. This...

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