TIME Magazineのインスタグラム(time) - 7月23日 23時09分

How did a virus travel from a bat colony to the city of Wuhan, where the coronavirus outbreak was first documented? And from there, how did it silently creep along motorways and flight routes to kill nurses in Italy, farmers in Brazil, retirees in Seattle? How this virus entered the human population to wreak such a devastating toll is the foremost issue of global scientific concern today. The search for "patient zero"—or the "index case," the first human COVID-19 infection—matters. Not because any fault or blame lies with this individual, but because discovering how the pathogen entered the human population, and tracing how it flourished, will help the science and public-health communities better understand the pandemic and how to prevent similar or worse ones in the future. Go inside the global quest to trace the origins of COVID-19—and predict where it will go next—at the link in bio. Artwork by @breasouders for TIME; @gettyimages (8); @shutterstock (18)

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