The Salk Vaccine: How Inactivated Poliovirus Stopped an Epidemic

Jonas Salk didn’t just invent a shot. He built a wall against one of the most feared diseases of the 20th century. The result...

What Actually Counts as a Drug and How It Works

You might think of a drug as something illicit. Or maybe a pill you pop for a headache. Technically though, a drug is any...

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