一、关于病毒侵入途径及一些机制问题病毒从人的呼吸道或消化道侵入,在呼吸道或消化道内增殖,而后到达中枢神经系统。病毒到达中枢神经系统有以下三条途径:即(1)经末梢神经,(2)经嗅神经,(3)经血行。病毒到达动物或人的中枢神经系统的途径列举如下表。 1.病毒侵入中枢神经系统的可能途径 (1)经末梢神经传递根据动物实 First, on the pathways and some of the virus intrusion virus problems from the human respiratory tract or digestive tract invasion, proliferation in the respiratory tract or digestive tract, and then reach the central nervous system. The virus reaches the central nervous system in three ways: (1) via the peripheral nerves, (2) through the olfactory nerve, and (3) through the bloodstream. The pathways for viruses to reach the central nervous system of animals or humans are listed below. 1. Possible Pathways for Viruses Invading the Central Nervous System (1) Peripheral Neurotransmission Based on Animal Facts