AdvertisementAs omicron spreads, studies suggest that travel bans alone don't do much goodUpdated November 29, 2021Deepa ShivaramEmma BowmanJaclyn DiazfacebookEmailPeople line up to get on the Air France flight to Paris at OR Tambo's airport in Johannesburg, South Africa, on Friday. The United States, Israel and other European nations have already imposed travel restrictions on South Africa and other nations in the region. (AP)This article was originally published on November 28, 2021.