As World Shuts Borders to Stop Omicron, Japan Offers a Cautionary Tale - The New York Times

As Omicron variant cases spread, countries rush to impose travel bans: Live updates CNN Japan bars foreign visitors due to Omicron Reuters South Africa informed the world of Omicron. Then it was hit with travel bans : Coronavirus Updates NPR Japan bans entry of foreign visitors as omicron spreads SFGate
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