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钩端螺旋体病是一种流行颇广的自然疫源性、急性传染病。流行几乎波及全球,在我国各省市亦有不同程度流行。但本病除以急性钩端螺旋体病形式发病外,另有少部分病人由于平素身体健康,而感染钩端螺旋体后则不急性起病,病原体在体内经半个月～数个月的潜伏期,在此潜伏期中钩端螺旋体则侵袭脑动脉的起始部,产生动脉狭窄以及闭塞等炎症性改变导
Leptospirosis is a widespread pandemic, acute infectious disease. The epidemic has spread to almost all parts of the world and has also been popularized to varying degrees in various provinces and cities in our country. However, the disease in addition to acute leptospirosis in the form of disease, while a small number of patients due to general health, but not infected with leptospirosis after acute onset, the pathogen in the body by half a month to several months of incubation, Leptospirosis in this incubation period invading the beginning of the cerebral artery, resulting in arterial stenosis and occlusion and other inflammatory changes in guide