More than a year into the pandemic, scientists are still debating Covid-19’s origins. WSJ breaks down key events in three locations in China – a seafood market, a lab and a mine – to piece together how the global health crisis might have started. Photo composite: George Downs
More from the Wall Street Journal:
Visit WSJ.com: http://www.wsj.com
Visit the WSJ Video Center: https://wsj.com/video