The first lady will host a virtual get-together with members of Team USA and will attend the opening ceremony for the Olympics.
"The pandemic will end when the world chooses to end it," WHO director Tedros Adhanom Ghebreyesus said. "It is in our hands."
"There are no words to describe how I'm feeling right now," said Amber Hill, Britain's top-ranked shooter, who will miss the Tokyo Games.
The Olympic synchronized swimmer said she had been forced to make "a really tough decision" after the Japanese government imposed restrictions to battle the spread of COVID-19.
Great Britain's women's soccer team performed the protest against racism just before its game against Chile.
Soccer star Megan Rapinoe could become a two-time Olympic champion this month should the U.S. Women's National Team win gold in Tokyo.
The U.S. opens its Olympic tournament against the team it lost to in the quarterfinals of the Rio Olympics five years ago.
The reigning world champions kick off their tournament against Sweden in the early hours of Wednesday morning.
With the games due to start in days, dozens of COVID cases have been reported among those accredited for the Tokyo 2020 games.
Tokyo Olympics 2020 starts officially on July 23 with the opening ceremony, though some events begin in the days before.
"We can bring success to the delivery of the games," Japan's Prime Minister Yoshihide Suga told IOC officials.
A number of swimmers have also signed an open letter calling for the entire Polish Swimming Federation board to resign over the mistake.
The two-time Paralympic world champion said she would submit a formal complaint to UK Athletics after the incident.
Osaka fired back at critics who questioned her magazine covers in the wake of her tournament withdrawals, saying she shot the images months earlier.
According to reports, 14 tons of oysters had to be removed from the Sea Forest Waterway, home to Olympic canoeing and rowing events.
Several athletes have tested positive for COVID-19 over the last few days, as Japan sees a spike in cases just days before the Games are scheduled to begin.
"I sincerely accept the opinions and advice I have received, express my gratitude, and will keep them in mind for my future actions and thoughts," Keigo Oyamada wrote.
"This is ignoring human rights and our right to life," one Olympics protestor in Tokyo said. "Infections are increasing. To do the Olympics is unforgivable."
After a one-year delay, the Olympic Games are going ahead in Japan without any spectators—but all the events will be televised for fans to enjoy.
Rumors have circulated that the eco-friendly beds are designed to collapse under the weight of any more than one occupant in order to discourage sex.
Several athletes have tested positive for COVID-19 over the past week, as Tokyo prepares for the Olympics to begin on Friday.
The IOC must put forward a gold-medal effort after almost 50 years.
"She needs to do her research and understand the history in America," Berry said, after Jenner called the athlete's protest "disgusting."
Three Olympic athletes have tested positive for COVID-19 in the Olympic Village as preparations for the Tokyo 2020 games get underway.
The Tokyo Olympics has been thrown into crisis in the last few days with a spike in coronavirus cases in the Japanese capital.
Gauff withdrew from the Tokyo Olympics, which begin this week.
Officials confirmed a person in the Games Village in Tokyo has tested positive for coronavirus, days before the event is due to start.
Dr. Shigeru Omi said the next two months will be the "most crucial stage" in Japan's fight against the coronavirus pandemic.