The time of troubles came unexpectedly. Coronavirus infected countries and showed the vulnerability of people to new global challenges. This suggests that the world should unite. International organizations must change in accordance with the times and have more information, financial and political opportunities so that they can immediately respond to such problems. Nevertheless, it remains an open question, despite existing versions, how it appeared, and why this virus began to destroy people so quickly. This suggests that problems may arise in a particular country, which may become a problem for all of humanity.