The important reason is the impact of the current international epidemic.
Not many countries have announced that they will not participate in the Beijing Winter Olympics. However, it is reported that some countries will not announce that they will not participate in the Winter Olympics. The important reason for not participating in the Beijing Winter Olympics is the influence of the current international epidemic. Since the outbreak of new crown pneumonia, many countries have adopted the strictest epidemic prevention method, that is, completely isolating the whole country from the outside world.
At present, there are no cases of COVID-19 in some countries, such as North Korea, and all the people are not vaccinated. Although China has implemented extremely strict epidemic prevention measures in hosting the Winter Olympics, we have to admit that there are still risks, which are unbearable for the fragile medical system, so the safest way is to postpone the attendance.