H7N9发生变异将会导致有效的人传人_时事

H7N9发生变异将会导致有效的人传人

　　Not only that, the research team found that in the study of the viral genome, amino acid mutation of H7 gene in the occurrence of the virus, the virus more easily from birds to people. "If the PB2 gene were 627 and 701 amino acid sites at the same time change, will lead to efficient human-to-human transmission." The paper thus expressed. The research team has found that the variation of 701 loci.

　　此外，专家还对H7N9患者的发病特点进行了科学上的分析和解释。研究首次发现，H7N9病毒主要存在于下呼吸道，在患者的痰和下呼吸道灌洗液中表现出长时间的高阳性率，但在鼻咽拭子的病毒检测中，阳性的检出率和持续时间都较短。“这一成果对我们准确确诊和判断疫情，并开展有针对性的治疗具有指导意义。论文作者之一梁伟峰说。

　　In addition, the experts also to the clinical characteristics of patients with H7N9 were analyzed and interpreted on science. The studies show, H7N9 virus exists mainly in the lower respiratory tract, showed a high positive rate of long time in patients with lower respiratory tract sputum and lavage fluid, but in the detection of nasopharyngeal swab of the virus, the positive detection rate and duration are short. "The results of our accurate diagnosis and judgment of the epidemic, and carrying out targeted therapy has a guiding significance." One of the authors, said Liang Weifeng.