The IOC is recommending the vaccination of athletes if they are available, but vaccines will not be required, and the IOC is recommending against athletes "jumping the queue" in order to obtain priority over essential populations.
Approximately 93,000 athletes and officials are exempt from the quarantine rules upon arriving to Japan, provided that they remain in areas separated from the local population. With around 300,000 local staff and volunteers entering and exiting these bubbles, and 20,000 vaccines doses allocated for this group, it has led to concerns of COVID-19 spreading both during the games and when teams return to their countries.