A policeman checks green pass of a passenger on a bus in Rome, Italy, Dec. 6, 2021. Italy tightened restrictions in the run-up to the Christmas and New Year holiday. The new measures, including the extension of the mandatory green pass to a wider array of venues and restrictions for unvaccinated people, have came into force on Monday in Italy. (Photo by Alberto Lingria/Xinhua)
A policeman checks green pass of a passenger at a bus station in Bologna, Italy, Dec. 6, 2021. Italy tightened restrictions in the run-up to the Christmas and New Year holiday. The new measures, including the extension of the mandatory green pass to a wider array of venues and restrictions for unvaccinated people, have came into force on Monday in Italy. (Photo by Gianni Schicchi/Xinhua)
A policeman checks green pass of a passenger at a bus station in Rome, Italy, Dec. 6, 2021. Italy tightened restrictions in the run-up to the Christmas and New Year holiday. The new measures, including the extension of the mandatory green pass to a wider array of venues and restrictions for unvaccinated people, have came into force on Monday in Italy. (Photo by Alberto Lingria/Xinhua)
A policeman checks green pass of a passenger at a bus station in Bologna, Italy, Dec. 6, 2021. Italy tightened restrictions in the run-up to the Christmas and New Year holiday. The new measures, including the extension of the mandatory green pass to a wider array of venues and restrictions for unvaccinated people, have came into force on Monday in Italy. (Photo by Gianni Schicchi/Xinhua)
Carabinieri officers and policemen work at a bus station in Rome, Italy, Dec. 6, 2021. Italy tightened restrictions in the run-up to the Christmas and New Year holiday. The new measures, including the extension of the mandatory green pass to a wider array of venues and restrictions for unvaccinated people, have came into force on Monday in Italy. (Photo by Alberto Lingria/Xinhua)
A policeman checks green pass of a passenger on a bus in Rome, Italy, Dec. 6, 2021. Italy tightened restrictions in the run-up to the Christmas and New Year holiday. The new measures, including the extension of the mandatory green pass to a wider array of venues and restrictions for unvaccinated people, have came into force on Monday in Italy. (Photo by Alberto Lingria/Xinhua)
A policeman checks green pass of a passenger at a bus station in Rome, Italy, Dec. 6, 2021. Italy tightened restrictions in the run-up to the Christmas and New Year holiday. The new measures, including the extension of the mandatory green pass to a wider array of venues and restrictions for unvaccinated people, have came into force on Monday in Italy. (Photo by Alberto Lingria/Xinhua)