2020 Tokyo Olympic Games

In this Wednesday, Feb. 5, 2020, photo, medical staff prepare beds at a temporary hospital which transformed from an exhibition center for accepting patients who diagnosed with the coronaviruses in Wuhan in central China's Hubei province. Ten more people were sickened with a new virus aboard one of two quarantined cruise ships with some 5,400 passengers and crew aboard, health officials in Japan said Thursday, as China reported 73 more deaths and announced that the first group of patients were expected to start taking a new antiviral drug. (Chinatopix via AP)

U.S. Anti-Doping Agency Chief Executive Officer Travis Tygart testifies during a Senate Commerce, Science, and Transportation Committee hearing on Capitol Hill in Washington, Wednesday, Feb. 5, 2020. Tygart urged Congress on Wednesday to pass a bill criminalizing international doping conspiracies before this summer's Tokyo Olympics, saying it would be a strong deterrent in the absence of adequate punishment for past Russian doping. (AP Photo/Susan Walsh)

Japan Coast Guard's patrol boat, left, is brought alongside the cruise ship Diamond Princess to take passengers tested positive for coronavirus to hospitals off Yokohama, south of Tokyo, Wednesday, Feb. 5, 2020. Japan said Wednesday 10 people on the cruise ship have tested positive for the new virus and were being taken to hospitals. Health Minister Nobukatsu Kato said all the 3,700 people and passengers on the ship will be quarantined on board for up to 14 days under Japanese law. (Hiroko Harima/Kyodo News via AP)

FILE - In this Wednesday, Jan. 29, 2020, file photo, a woman with a young boy takes a selfie with the Olympic rings, in Tokyo's Odaiba district. Tokyo Olympic organizers are trying to shoot down rumors that this summer's games might be cancelled or postponed because of the spread of a new virus. (AP Photo/Jae C. Hong, File)

FILE - In this March 1, 2018, file photo, Russia's Danil Lysenko competes in the men's high jump final at the World Athletics Indoor Championships in Birmingham, England. Sports authorities heightened the possibility of completely excluding Russian track athletes from this year's Olympics in the wake of a spate of doping scandals that have engulfed the country. The Athletics Integrity Unit, which handles doping-related matters for World Athletics, said Wednesday, Jan. 29, 2020, it made the recommendation after not getting appropriate responses from Russia's track and field federation (RusAF) regarding a case involving forged documents for high jumper Danil Lysenko. (AP Photo/Matt Dunham, File)

Laurie Hernandez trains with other USA gymnasts in Indianapolis, Monday, Jan. 20, 2020. Hernandez, a two-time Olympic medalist, and other veterans in the USA Gymnastics elite program have praised the organization for taking steps to become more accountable and transparent in the wake of the Larry Nassar scandal. (AP Photo/Teresa Crawford)

Fireworks light up the sky near the illuminated Olympic rings during a ceremony held to celebrate the 6-months-to-go milestone for the Tokyo 2020 Olympics Friday, Jan. 24, 2020, in the Odaiba district of Tokyo. (AP Photo/Jae C. Hong)

FILE - In this July 7, 2019, file photo, United States' Rose Lavelle, left, is challenged by Netherlands' Danielle Van De Donk during the Women's World Cup final soccer at the Stade de Lyon in Decines, outside Lyon, France. Twenty players have been named to the U.S. women's soccer team that will play for a spot in the Tokyo Olympics. Coach Andonovski announced the roster for the CONCACAF Olympic qualifying tournament Friday, Jan. 17, 2020. (AP Photo/David Vincent, File)

FILE - In this Oct. 8, 2019, file photo, technicians walk at the three thematic districts at the under construction site of the Expo 2020 in Dubai, United Arab Emirates. The United States, on Wednesday, Jan. 15, 2020, said its participation at this year's World's Fair in Dubai is being made possible by “the generosity of the Emirati government.” (AP Photo/Kamran Jebreili)

Thomas Bach, president of the International Olympic Committee (IOC), delivers a speech during the 135th Session of the IOC on the sideline of the the 3rd Winter Youth Olympic Games Lausanne 2020, at the SwissTech Convention Centre, in Lausanne, Switzerland, Friday, Jan. 10, 2020. (Laurent Gillieron/Keystone via AP)