This handout picture made available by the World Health Organization (WHO) shows WHO Director-General Tedros Adhanom Ghebreyesus delivering remarks following the speech of US President's chief medical adviser during a World Health Organization (WHO) executive board meeting on January 21, 2021 in Geneva. - In a dramatic about-turn, the new US administration on January 21, 2021 thanked the World Health Organization for leading the global pandemic response and vowed to remain a member. "The United States also intends to fulfil its financial obligations to the organisation," top US scientist Anthony Fauci, who has been named President Joe Biden's chief medical adviser, told a meeting of the WHO's executive board. (Photo by Christopher Black / World Health Organization / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO/ CHRIS BLACK/ WORLD HEALTH ORGANIZATION" - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS