Covid-19: what are the main variants in China, and are they already circulating in Europe?

Test all passengers from China, as decided by India, Japan, the United States or even Italy? It is “unjustified”, estimated this Thursday afternoon the European Center for Disease Prevention and Control (ECDC). The reason ? The “Variants circulating in China are already circulating in the European Union”, justified the main health agency of the continent. But are we so sure, when China is criticized for its lack of transparency?