Covid-19 vaccines explained by Thomas Abraham.
Scientists in laboratories across the world seized upon the genome sequence of the new virus: a 30,000-character-long string of four molecules – adenine, cytosine, guanine and uracil.
Some used it to try to re-create and grow the virus in the lab; others to trace the virus’ origins and understand its place in the larger coronavirus family. And a small group of vaccine developers in Europe, North America and China used the genetic data to create prototype vaccines against Covid-19.
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