Tokyo 2020 isn't the first Olympic Games to battle a pandemic
By
Teele Rebane, CNN
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(CNN) -- Covid-19 has thrown more than few curve balls at Tokyo Olympic organizers -- but this isn't the first Games to battle a pandemic.
A century ago, the 1920 Antwerp Olympics were held only a few months after the Spanish flu ravaged the world, killing at least 50 million people. In 2010, the Vancouver Olympics were threatened by an outbreak of H1N1. In 2016, the Zika virus prompted calls to cancel the Rio Games. And most recently in 2018, officials in Pyeongchang wrestled with an outbreak of the norovirus.