Organisers have stressed it is far too early to consider changes to the Tokyo Olympics, which start on July 24, because of the coronavirus.
The official Olympic motto is "Citius, Altius, Fortius" or "Faster, Higher, Stronger", but each host city chooses its own motto to accompany that edition of the Games.
The 34-year-old, who also won the 2010 Olympic 15km mass start title in Vancouver, retired following the Sochi winter Games six years ago.
A quartet of runners carried unlit torches for some 200 metres each as organisers meticulously went over the fine details before the Olympic flame arrives in Japan.
The head of IOC coordination commission insisted there was no danger of Tokyo 2020 being cancelled or moved.
The World Cup champion United States had punched their ticket to Tokyo with a 4-0 victory over Mexico, while Canada secured their spot with a 1-0 win over Costa Rica.
Chief executive officer Toshiro Muto revealed that organisers have set up a task force to combat the fast-spreading disease that has killed over 560 people and infected at least 28,00.
Toshiro Muto said he hoped the outbreak in China would be quickly contained to restore confidence in the run-up to the Olympics.
Koike also urged people to wash their hands and wear surgical masks to help protect them from disease.
Athletics Kenya (AK) president Jackson Tuwei said the country expected a drug-free Olympics and hoped the selected athletes will run clean.
IOC President Thomas Bach praised Sapporo as a potential candidate for 2030 earlier this month following a meeting with the city's mayor Katsuhiro Akimoto in Lausanne.
The two top finishers in the event will earn berths in Japan, to be decided in the semifinals on February 7 in Los Angeles.
Rapinoe's comments were accompanied by a graphic showing fists raised through the interlocking rings -- under the crossed out words "kneeling, hand gestures, signs."
David Haggerty, an American who is the president of the ITF, and Yasuhiro Yamashita, president of the Japanese Olympic Committee, were also elected at the IOC session in Lausanne.
The World Anti-Doping Agency on December 10 banned Russia for four years from major global events, including the 2020 Tokyo Olympics and the 2022 World Cup in Qatar, over manipulated doping data.