Xinhua News Agency, May 15, Zhong Nanshan, academician of the Chinese Academy of Engineering Zhong Nanshan introduced that after testing, a considerable number of people across the country have increased the corresponding antibody to novel coronavirus, indicating that about 80 percent of the people nationwide have been infected with novel coronavirus-about 1.1 billion to 1.2 billion people, regardless of whether they have developed related symptoms or not. In the next step to deal with novel coronavirus's infection, on the one hand, we also need to develop vaccines that can cover XBB mutant strains, including MRNA vaccine and recombinant protein vaccine, these vaccines are mainly aimed at some special groups of people, such as the elderly with low immunity or other serious underlying diseases; on the other hand, once infected with COVID-19, timely drug treatment should be given, which can greatly reduce mortality.