French President Emmanuel Macron, flanked by French Higher Education, Research and Innovation Minister Frederique Vidal and Director of the Imagine Institute Stanislas Lyonnet, greets visitors during a visit at the Necker Hospital, in Paris, France December 4, 2020. Thomas Samson/Pool via REUTERS

French President Emmanuel Macron, flanked by French Health Minister Olivier Veran and French Higher Education, Research and Innovation Minister Frederique Vidal, visits the Necker Hospital, in Paris, France December 4, 2020. Thomas Samson/Pool via REUTERS

French President Emmanuel Macron, flanked by French Higher Education, Research and Innovation Minister Frederique Vidal visits the Necker Hospital, in Paris, France December 4, 2020. Thomas Samson/Pool via REUTERS

French President Emmanuel Macron, flanked by French Higher Education, Research and Innovation Minister Frederique Vidal and French Health Minister Olivier Veran greets a visitor as he arrives at the Necker Hospital, to give a speech on health research, in Paris, France December 4, 2020. Thomas Samson/Pool via REUTERS

French President Emmanuel Macron, flanked by French Higher Education, Research and Innovation Minister Frederique Vidal greets visitors as he arrives at the Necker Hospital, to give a speech on health research, in Paris, France December 4, 2020. Thomas Samson/Pool via REUTERS

French President Emmanuel Macron, flanked by French Higher Education, Research and Innovation Minister Frederique Vidal and French Health Minister Olivier Veran speaks with a visitor as he arrives at the Necker Hospital, to give a speech on health research, in Paris, France December 4, 2020. Thomas Samson/Pool via REUTERS

French President Emmanuel Macron, flanked by French Higher Education, Research and Innovation Minister Frederique Vidal and French Health Minister Olivier Veran greets a visitor as he arrives at the Necker Hospital, to give a speech on health research, in Paris, France December 4, 2020. Thomas Samson/Pool via REUTERS

French President Emmanuel Macron, flanked by French Higher Education, Research and Innovation Minister Frederique Vidal and French Health Minister Olivier Veran speaks with a visitor as he arrives at the Necker Hospital, to give a speech on health research, in Paris, France December 4, 2020. Thomas Samson/Pool via REUTERS

An Egyptian girl wearing a protective face mask rides a bicycle with her father after school, amid the coronavirus disease (COVID-19) pandemic in Cairo, Egypt December 3, 2020. REUTERS/Amr Abdallah Dalsh

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Melbourne Victory's Jacob Butterfield in action with FC Seoul's Osmar REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Melbourne Victory coach Grant Brebner celebrates with Adama Traore after the match REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Melbourne Victory coach Grant Brebner celebrates with players after the match REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul players look dejected after the match REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Melbourne Victory coach Grant Brebner celebrates with Callum McManaman after the match REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul players look dejected after the match REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul players look dejected after the match REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul's Jin-Sung Kim in action with Melbourne Victory's Luis Lawrie-Lattanzio REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul's Hyun-Soo Hwang in action REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul's Hyun-Soo Hwang in action REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul's Seung-Jae Lee in action with Melbourne Victory's Adama Traore REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul's Young-Sun Yun in action with Melbourne Victory's Luis Lawrie-Lattanzio REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul's Young-Sun Yun in action with Melbourne Victory's Luis Lawrie-Lattanzio REUTERS/Ibraheem Al Omari

A school teacher receives a jab while being injected with Sputnik V (Gam-COVID-Vac) vaccine against the coronavirus disease (COVID-19) at a clinic in the town of Domodedovo near Moscow, Russia December 3, 2020. REUTERS/Maxim Shemetov

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul's Seung-Gyu Han in action with Melbourne Victory's Jake Brimmer REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul's Hyun-Soo Hwang celebrates scoring their first goal REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul's Hyun-Soo Hwang celebrates scoring their first goal REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul's Hyun-Soo Hwang scores their first goal REUTERS/Ibraheem Al Omari

A school teacher receives a jab while being injected with Sputnik V (Gam-COVID-Vac) vaccine against the coronavirus disease (COVID-19) at a clinic in the town of Domodedovo near Moscow, Russia December 3, 2020. REUTERS/Maxim Shemetov

A school teacher receives a jab while being injected with Sputnik V (Gam-COVID-Vac) vaccine against the coronavirus disease (COVID-19) at a clinic in the town of Domodedovo near Moscow, Russia December 3, 2020. REUTERS/Maxim Shemetov

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Melbourne Victory's Ben Folami in action with FC Seoul's Hyun-Soo Hwang REUTERS/Ibraheem Al Omari

A school teacher receives a jab while being injected with Sputnik V (Gam-COVID-Vac) vaccine against the coronavirus disease (COVID-19) at a clinic in the town of Domodedovo near Moscow, Russia December 3, 2020. REUTERS/Maxim Shemetov

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Melbourne Victory's Ben Folami in action with FC Seoul's Young-Sun Yun REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Melbourne Victory coach Grant Brebner REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul caretaker coach Lee Won-jun REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 FC Seoul caretaker coach Lee Won-jun REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Melbourne Victory coach Grant Brebner REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group E - Melbourne Victory v FC Seoul - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Melbourne Victory's Jake Brimmer in action with FC Seoul's Seung-Gyu Han REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Perth Glory players look dejected after the match REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo's Taichi Hara in action with Perth Glory's Bruno Fornaroli REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo's Takumi Nakamura in action with Perth Glory's Bruno Fornaroli REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Perth Glory's Declan Hughes is shown a yellow card by referee Hanna Hattab REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo's Manato Shinada in action with Perth Glory's Diego Castro REUTERS/Ibraheem Al Omari

Students wear protective face masks as they have their temperature checked before entering a class, after the government allowed the reopening of schools from grade six to eight amid the coronavirus disease (COVID-19) pandemic, in Peshawar, Pakistan September 23, 2020. REUTERS/Fayaz Aziz/File Photo TPX IMAGES OF THE DAY SEARCH "GLOBAL COVID-19" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo's Keigo Higashi in action with Perth Glory's Neil Kilkenny REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo's Daiki Niwa in action with Perth Glory's Giordano Colli and Carlo Armiento REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo's Kyosuke Tagawa in action with Perth Glory's Mason Tatafu REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Perth Glory's Liam Reddy in action REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo's Kyosuke Tagawa in action with Perth Glory's Mason Tatafu REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo's Adailton celebrates scoring their first goal REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo coach Kenta Hasegawa REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo's Adailton in action REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo's Adailton celebrates scoring their first goal REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo's Adailton celebrates scoring their first goal with teammates REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Perth Glory coach Richard Garcia REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Tokyo players huddle before the match REUTERS/Ibraheem Al Omari

Soccer Football - AFC Champions League - Group F - Perth Glory v Tokyo - Education City Stadium, Ar-Rayyan, Qatar - December 3, 2020 Perth Glory players during the warm up before the match REUTERS/Ibraheem Al Omari

A student prays ahead of the annual college entrance examinations amid the coronavirus disease (COVID-19) pandemic at an exam hall in Seoul, South Korea, December 3, 2020. REUTERS/Kim Hong-Ji/Pool

A student waits for the start of the annual college entrance examinations amid the coronavirus disease (COVID-19) pandemic at an exam hall in Seoul, South Korea, December 3, 2020. REUTERS/Kim Hong-Ji/Pool

A student checks the time as the others wait for the start of the annual college entrance examinations amid the coronavirus disease (COVID-19) pandemic at an exam hall in Seoul, South Korea, December 3, 2020. REUTERS/Kim Hong-Ji/Pool

Students wait for the start of the annual college entrance examinations amid the coronavirus disease (COVID-19) pandemic at an exam hall in Seoul, South Korea, December 3, 2020. REUTERS/Kim Hong-Ji/Pool