Progress in prevention and control of Delta coronavirus variant

ABSTRACT

With the spread of SARS-CoV-2 virus worldwide, mutant strains are constantly emerging. The Delta strain has quickly become the dominant strain because of its powerful transmission, high viral load, and strong pathogenicity. It has brought new challenges to the global epidemic prevention and control, and the effectiveness of the existing vaccines have also been significantly reduced. The single-strand RNA characteristics of the virus mean that the mutation will continue to occur, and how to deal with the prevalence of mutant strains has also become a widespread concern. More stringent protection and control strategies have been developed for Delta strains at home and abroad. At the same time, it has progressed in the research and development of specific drugs and variant vaccines for SARS-CoV-2 virus and its mutant strains, which will provide more references for the future dissemination of SARS-CoV-2 virus and its variant strains. In this paper, we summarized the prevention and control measures of Delta at home and abroad, and reviewed the research progress on the treatment of SARS-CoV-2 virus and its mutant strains, in order to provide a scientific basis for formulating more scientific and perfect prevention and control strategies.