Release date: 2007-10-23
The latest research shows that the H5N1 virus can be transmitted through mother-to-child transmission. The latest research results show that the deadly avian influenza virus H5N1 can be transmitted to the unborn fetus through the placenta of pregnant women. In general, the mother will not be infected with ordinary influenza virus. Infected to the fetus.
The newspaper comprehensive report H5N1 is a highly pathogenic avian influenza virus. According to current statistics, 60% of infected people eventually die. A research team led by Peking University scientist Gu Jiang found that the H5N1 virus can spread rapidly to organs outside the adult's lungs, including the intestines. The research was published in the latest issue of the British medical journal The Lancet. Not only infecting human lungs Scientists have studied the body tissues of two 35-year-old men and a 24-year-old pregnant woman who died of avian flu and found that the H5N1 virus not only infects the human lungs but also spreads it. Gastrointestinal, brain, liver and blood cells. "This study helps us better understand the high lethality of H5N1 and provides a model for global collaboration to prevent the disease," said Ian Lipkin, Ph.D., of Columbia University, who was involved in the study.
The researchers not only detected viral genetic material and antigens in the lungs and trachea of ​​the deceased, but also detected an anti-disease T cell in the lymphatic and brain nerves. In addition, scientists have discovered the "cluster" of H5N1 virus in the placenta, embryonic immune cells and liver cells. The fetus was also infected and found that the 4 month old fetus in the female's deceased was also infected. Professor Gu Jiang said that the "vertical propagation" process of H5N1 virus from one part of the body to another and spread to the uterus requires a comprehensive study, because the mother is generally not infected with the fetus after being infected with ordinary influenza virus. Lipkin said that this discovery supports the "cytokine storm" theory, which believes that in some cases, the human immune system has a fatal overreaction to the virus, releasing a large amount of immunochemicals and eventually "killing" patient. The study also found that the virus destroys an immune cell called a macrophage, which proves that the virus not only stimulates some parts of the immune system to overreact, but also inhibits other parts from developing. Previous studies have suggested that the H5N1 virus inhibits the body's immune system. ——Midi Medical Network
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