FILE - In this Tuesday, Tuesday, Sept. 14, 2021, file photo provided by United Nations, U.N. Secretary-General António Guterres, left, and Volkan Bozkir, right, president of the 75th session of the United Nations General Assembly, applaud as Abdulla Shahid, center, receives the gavel as the new president of the 76th session of the UNGA at U.N. headquarters. World leaders will have to be vaccinated against the coronavirus to speak at the U.N. General Assembly's big meeting next week, the assembly leader and New York City officials said this week, prompting swift objections from at least one nation.(Evan Schneider/United Nations Photo via AP, File)