The spread of the Omi Keron strain of the new crown mutant virus has brought new challenges to epidemic prevention in various countries.

According to statistics on November 30, at least 15 countries around the world have reported confirmed cases of Omi Keron strain.

Dozens of countries have imposed new travel restrictions on Southern Africa.

  WHO Director-General Tan Desai reminded that although scientists are still not sure whether the variant is related to greater transmission risks and serious diseases, or whether it has any impact on the effectiveness of the vaccine, the world should no longer need another. Only a "wake-up call" can "wake up".

(Producing Le Xiaomin)

Editor in charge: 【Luo Pan】