Disease control: mutation of the new coronavirus infectious enhancement of the toxicity of no change

BEIJING, Jan. 13 (Xinhua) -- Feng Zijian, deputy director of china's Centers for Disease Control and Prevention, said Wednesday that the initial confirmation of infectious enhancement caused by the mutated virus is a measure that the renewal rate has increased by about 10%-70%, and the renewal rate in households has also increased significantly. So far, we haven't seen the virus become more powerful, which is what causes the disease to become more serious.joint defense control mechanism held a press conference on the 13th. At the meeting, a reporter asked: Recently, Shanghai, Guangdong, Shandong and other places have reported overseas imports of the mutant new crown virus infection cases, foreign studies have also shown that the mutant virus is more contagious. What impact will this have on the prevention and control of the epidemic in China?
said new variants of the virus had recently been found in the UK and South Africa, and similar cases in Brazil were being closely watched. This issue is indeed a matter of great concern to the whole world, and it is a new problem that arises in the course of the new crown pandemic. In response to this problem, the countries where the outbreak occurred and other different research institutions in the international community are highly concerned and closely studied. It has now been initially confirmed that the infectiousness caused by the mutated virus has increased, as evidenced by an increase in the rate of renewal, an increase of about 10-70 per cent, and a significant increase in the rate of renewal in households. Across Europe, and especially in the UK, the prevalence of the virus has also become the dominant strain, and outbreaks are growing in these countries. After excluding human behavior factors, it is still seen to increase the phenomenon, so the infectiousness of the disease has increased, which is basically certain.
Feng Zijian pointed out that for the time being, we have not seen the virus's increased toxicity, which is to increase the severity of the disease. A comparative system of research was done in the country, and the hospitalization rate and death rate of people infected with the new variant virus and those infected with other non-mutant viruses did not increase, indicating that the virus virology did not change. In addition, no changes in antigens were seen. There are no clear signs of whether antibodies produced by infection or vaccination in the past have lost their protection.
on the prevention and control of the mutant virus, Feng Zijian said that the emergence of the new mutant virus, its infectious, transmission capacity to enhance the main impact is to take the virus prevention and control measures to be strengthened accordingly, in the past, the measures taken to prevent and control the disease if it is 10 points, now to take 12 or 15 points greater efforts to prevent and control. Specific measures do not need to have new adjustments, for our country, the use of very strict personnel immigration management, 14 days of isolation, strengthen nucleic acid screening and other measures are not affected, measures to prevent domestic transmission is also these measures, personal prevention also need to wear masks, personal hand hygiene and so on, when the outbreak occurred, take a series of effective measures, as long as it is implemented, maintain high strength, strong, still can effectively prevent its further spread.