Olympic teams have been urged by the International Olympic Committee to request more Chinese vaccines ahead of the 2022 Beijing Winter Games, in the country where the coronavirus outbreak started.
The IOC first announced a vaccine rollout program with Chinese authorities for athletes and officials in March.
Chinese vaccines were bought by the IOC and also made available for delegations heading to the Tokyo Olympics from countries which had approved them for use.
There were 205 teams in Tokyo. About 100 countries are likely to compete at the Beijing Games, which open Feb. 4.
Vaccination is encouraged but not mandatory.
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