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''Rabies'' is a viral zoonotic neuroinvasive disease which causes inflammation in the brain and is usually fatal. Rabies primarily infects mammals and is caused by the rabies virus. Animals with rabies suffer deterioration of the brain and tend to behave bizarrely and often aggressively, increasing the chances that they will bite another animal or a person and transmit the disease. == Stages of disease == Three stages of rabies are recognized in dogs and other animals. # The first stage is a one- to three-day period characterized by behavioral changes and is known as the prodromal stage. # The second stage is the excitative stage, which lasts three to four days. It is this stage that is often known as ''furious rabies'' due to the tendency of the affected animal to be hyperreactive to external stimuli and bite at anything near. # The third stage is the paralytic stage and is caused by damage to motor neurons. Incoordination is seen due to rear limb paralysis and drooling and difficulty swallowing is caused by paralysis of facial and throat muscles.This disables the victim's ability to swallow, which causes saliva to pour from the mouth also the reason bites are the most clear way for the infection to spread is because the virus is most concentrated in the throat and cheeks causing major contamination to saliva. Death is usually caused by respiratory arrest. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Rabies in animals」の詳細全文を読む スポンサード リンク
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