On February 19, the official website of the Chinese Center for Disease Control and Prevention announced that in January of this year, the Guangdong Provincial Center for Disease Control and Prevention conducted two gene sequencing analysis of the virus isolated from human cases infected with H7N9 and found that the two viruses had hemagglutinin. A gene insertion mutation occurred in the position of the linked peptide. The detection result was confirmed by the national influenza center of the National Center for Disease Control and Prevention. The National Center for Disease Control and Prevention organized expert judgments and communicated with relevant experts in the agricultural sector, suggesting that the gene insertion mutation of the H7N9 virus at the position of the hemagglutinin linker peptide suggests that the virus has been mutated to avian highly pathogenic virus; According to the result of the virus sequence analysis, no mutation has occurred in the mutant virus that has increased human infectivity, virulence, and interpersonal transmission.
(Yangcheng Metro reporter He Xuehua)
Director of Guangdong Provincial Center for Disease Control and Prevention
From the analysis results, there is little impact on the prevention and control of human infection with H7N9, but it has a greater impact on the poultry industry, transportation industry, sales and slaughter industries.
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