What if the incubation period for rabies virus before it reaches the brain?
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What if the incubation period for rabies virus before it reaches the brain?
Symptoms of Rabies Rabies symptoms appear when the rabies virus reaches the brain or spinal cord, usually 30 to 50 days after a person is bitten. However, this interval can vary from 10 days to more than a year. The closer the bite to the brain (for example, on the face), the more quickly symptoms appear.
When rabies symptoms appear the disease has advanced too far for help What are the symptoms?
As the disease progresses, the person may experience delirium, abnormal behavior, hallucinations, hydrophobia (fear of water), and insomnia. The acute period of disease typically ends after 2 to 10 days.
How does the virus causing rabies enter the brain?
The virus is transmitted in the saliva of an infected animal. From the point of entry (usually a bite), the rabies virus travels along nerves to the spinal cord and then to the brain, where it multiplies. From there, it travels along other nerves to the salivary glands and into the saliva.
What are the neurological symptoms of rabies?
Symptoms and Signs of Rabies Initial symptoms of rabies are nonspecific: fever, headache, and malaise. Within days, encephalitis (furious rabies; in 80\%) or paralysis (dumb rabies; in 20\%) develops. Encephalitis causes restlessness, confusion, agitation, bizarre behavior, hallucinations, and insomnia.
How does rabies virus affect the nervous system?
The rabies virus attacks the central nervous system of the host, and in humans, it can cause a range of debilitating symptoms — including states of anxiety and confusion, partial paralysis, agitation, hallucinations, and, in its final phases, a symptom called “hydrophobia,” or a fear of water.
What happens when rabies is left untreated?
Rabies is a serious but fairly rare disease. It is a virus transmitted to humans through an infected animal’s saliva. Rabies is almost always fatal if left untreated.