What is the causes of encephalitis? How does it enter the body? Which organ does it infect? What are the symptoms caused when the organ infected?
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Encephalitis is an acute inflammation of the brain. The majority of cases are caused by either a viral infection or the immune system mistakenly attacking brain tissue.
In the United States, encephalitis is responsible for an estimated 19,000hospitalizations, 230,000 hospital days, and $650 million in hospitalization costs.
Around 15 percent of encephalitis cases occur in the HIV-infected population.
In this article, we will look at the symptoms, causes, treatments, and complications of encephalitis.
Fast facts on encephalitis
Here are some key points about encephalitis. More detail and supporting information is in the main article.
Early symptoms are fever, photophobia, and headacheEncephalitis is rarely life-threateningEncephalitis most often affects children, older adults, and those with compromised immune systemsOnly a handful of antiviral medications can help treat encephalitisComplications of encephalitis can include epilepsy and memory loss
What is encephalitis?
Encephalitis is an acute inflammation of the brain.
Encephalitis is an acute inflammation(swelling) of the brain usually resulting from either a viral infection or due to the body's own immune system mistakenly attacking brain tissue.
In medicine, "acute" means it comes on abruptly and develops rapidly; it usually requires urgent care.
The most common cause is a viral infection. The brain becomes inflamed as a result of the body's attempt to fight off the virus.
Encephalitis occurs in 1 in every 1,000cases of measles.
Encephalitis generally begins with fever and headache. The symptoms rapidly worsen, and there may be seizures (fits), confusion, drowsiness, and loss of consciousness, and even coma.
Encephalitis can be life-threatening, but this is rare. Mortality depends on a number of factors, including the severity of the disease and age.
Younger patients tend to recover without many ongoing health issues, whereas older patients are at higher risk for complications and mortality.
When there is direct viral infection of the brain or spinal cord, it is called primary encephalitis. Secondary encephalitis refers to an infection which started off elsewhere in the body and then spread to the brain.
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In the United States, encephalitis is responsible for an estimated 19,000hospitalizations, 230,000 hospital days, and $650 million in hospitalization costs.
Around 15 percent of encephalitis cases occur in the HIV-infected population.
In this article, we will look at the symptoms, causes, treatments, and complications of encephalitis.
Fast facts on encephalitis
Here are some key points about encephalitis. More detail and supporting information is in the main article.
Early symptoms are fever, photophobia, and headacheEncephalitis is rarely life-threateningEncephalitis most often affects children, older adults, and those with compromised immune systemsOnly a handful of antiviral medications can help treat encephalitisComplications of encephalitis can include epilepsy and memory loss
What is encephalitis?
Encephalitis is an acute inflammation of the brain.
Encephalitis is an acute inflammation(swelling) of the brain usually resulting from either a viral infection or due to the body's own immune system mistakenly attacking brain tissue.
In medicine, "acute" means it comes on abruptly and develops rapidly; it usually requires urgent care.
The most common cause is a viral infection. The brain becomes inflamed as a result of the body's attempt to fight off the virus.
Encephalitis occurs in 1 in every 1,000cases of measles.
Encephalitis generally begins with fever and headache. The symptoms rapidly worsen, and there may be seizures (fits), confusion, drowsiness, and loss of consciousness, and even coma.
Encephalitis can be life-threatening, but this is rare. Mortality depends on a number of factors, including the severity of the disease and age.
Younger patients tend to recover without many ongoing health issues, whereas older patients are at higher risk for complications and mortality.
When there is direct viral infection of the brain or spinal cord, it is called primary encephalitis. Secondary encephalitis refers to an infection which started off elsewhere in the body and then spread to the brain.
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