The Latest: Boris Johnson to urge global unity against virus

In this image made from UNTV video, Palestinian President Mahmoud Abbas speaks in a pre-recorded message which was played during the 75th session of the United Nations General Assembly, Friday, Sept. 25, 2020, at UN headquarters, in New York. (UNTV via AP)

In this photo made from video, Boris Johnson, Prime Minister, First Lord of the Treasury and Minister for the Civil Service of the United Kingdom of Great Britain and Northern Ireland addresses the High-level roundtable on Climate Ambition, Thursday, Sept. 24, 2020 at UN headquarters. The virtual event was convened by the Secretary General with global climate leaders from government, business and finance, and civil society to showcase high-impact actions and solutions to confront the climate crisis. (Manuel Elías/UN Photo via AP)

In this image made from UNTV video, Abiy Ahmed, Prime Minister of Ethiopia, speaks in a pre-recorded message which was played during the 75th session of the United Nations General Assembly, Wednesday, Sept. 23, 2020, at U.N. Headquarters. (UNTV Via AP )

In this image made from UNTV video, Imran Khan, Prime Minister of Pakistan, speaks in a pre-recorded message which was played during the 75th session of the United Nations General Assembly, Friday, Sept. 25, 2020, at UN headquarters. (UNTV via AP)

In this image made from UNTV video, Charles Michel, President of the European Council, European Union, speaks in a pre-recorded message which was played during the 75th session of the United Nations General Assembly, Friday, Sept. 25, 2020, at UN headquarters, in New York. (UNTV via AP)

In this image made from UNTV video, Pope Francis speaks in a pre-recorded message which was played during the 75th session of the United Nations General Assembly, Friday, Sept. 25, 2020, at UN headquarters, in New York. (UNTV via AP)