The Director-General of WHO said on the 21st local time that he hopes the new coronavirus pandemic will end within two years. The key is global solidarity and cooperation; no country is safe until the vaccine is available, and the epidemic cannot be eliminated by vaccine alone.
This epidemic must be detected and prevented in time to ensure mutual safety. WHO officials said that there are more than 80,000 new coronavirus gene sequences in the world, and most of the mutations of this virus will not affect its infectivity.