Jean Peccoud/The Conversation
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![A syringe in a vaccine bottle](https://www.popsci.com/wp-content/uploads/2020/03/30/5V5BRNRMKFCLTF2GFH7H5IKRLA.jpg?w=674)
COVID-19
Scientists are experimenting with three kinds of COVID-19 vaccines Scientists are experimenting with three kinds of COVID-19 vaccines
By Jean Peccoud/The Conversation
March 30, 2020