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Doctor insights on: How Often Does West Nile Fever Turn Into West Nile Encephalitis

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How often does west nile fever turn into west nile encephalitis?

How often does west nile fever turn into west nile encephalitis?

Actually uncommon: Most west nile infections are asymptomatic. Some cause mild flu-like symptoms. Full blown infection of brain is rather uncommon in the normal patient and more often seen with immuno-suppression, such as prior transplants, HIV pts, cancer chemotherapy. The polio-myelitis form is even rarer. ...Read more

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Dr. Heidi Fowler
29 doctors shared insights

West Nile Encephalitis (Definition)

West Nile encephalitis is the more severe form of West Nile virus infection, which is spread by mosquitoes. The initial viral infection symptoms may range from having none at all to flu-like symptoms such as a fever and nausea as well as vomiting. West Nile encephalitis (brain inflammation) is potentially fatal, and results in symptoms of confusion, loss of consciousness, muscle weakness, ...Read more


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Can west nile virus cause encephalitis?

Can west nile virus cause encephalitis?

Yes: West nile virus is caused by an infection transmitted via a mosquito bite. Many people may be exposed to the virus but never develop symptoms. When symptoms do develop, it is typically fever and headache although more severe symptoms may occur. The cdc has info on west nile activity nationwide: http://www.Cdc.Gov/ncidod/dvbid/westnile/index.Htm. ...Read more

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What is recovery rate from West Nile virus causing encephalitis?

What is recovery rate from West Nile virus causing encephalitis?

Variable: A case of West Nile virus with encephalitis recover but takes long time , prolonged recuperation and need rehabilitation for a long time . They may have some memory loss or weakness of limbs ...Read more

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Encephalitis from west nile virus. What is death rate/cute rate? What treatments are available

Hard to say: Some studies have quoted mortality from neuroinvasive cases of wnv ~5%, but this must be a huge overestimate. Maybe 3 in 1000 of all cases are severe (or neuroinvasive), so you might guess less than 1 in 5000 cases die. Most of the deaths appear to come in the elderly, chronically ill or immunosuppressed. Treatment is mainly supportive (including intubation & ventilation in severe cases). ...Read more

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Can humans catch west nile encephalitis?

Mosquito bites: West nile virus must be produced in high numbers before being passed through mosquitoes. Birds are far and away the most frequent carriers. Robins look like they might be responsible for spread all over the country. Mosquitoes have to feed on the infected robin and then pass the virus on to human beings through a bite. ...Read more

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How do I know if I have west nile fever?

Most no symptoms.: 80% of people infected have no symptoms. If you develop symptoms of severe west nile virus illness, such as unusually severe headaches or confusion, seek medical attention immediately, according to the cdc. Severe illness usually requires hospitalization. Milder cases improve on their own and do not necessarily require medical attention. ...Read more

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Is the west nile fever found all over the usa?

The Robin: West nile virus must be produced in high numbers before being passed through mosquitoes. Birds are far and away the most frequent carriers. Robins look like they might be responsible for spread all over the country. Mosquitoes have to feed on the infected robin and then pass the virus on to human beings through a bite. ...Read more

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Does west nile encephalitis always kill you?

Not always: Many previously healthy people who acquire west nile encephalitis will recover. Those most likely to die are the elderly and those with compromised immune systems. ...Read more

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What does a rash from west nile fever look like?

What does a rash from west nile fever look like?

West Nile Virus: The rash seen with West Nile Virus Fever tends to be a non-specific maculopapular rash that appears between days 5 to 12 of acute illness. ...Read more

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What are good preventive measures for west nile fever?

What are good preventive measures for west nile fever?

Avoid mosquitoes: Mosquito safety- use bed netting when sleeping. Spray the walls of the home with insecticide. Wear long pants & long sleeved shirts from dusk to dawn. Use Permethrin spray on clothing and mosquito netting. Deet agents can be used on skin. ...Read more

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Dr. Tatiana Falcone
168 doctors shared insights

Encephalitis (Definition)

The encephalon is considered to be the gray matter of the brain. This is where all the neuron cells are located. If an infection sets in to this region it is called an encephalitis. The -itis ending just means inflammation. It is usually virus infections that like to go specifically to the ...Read more


Dr. Mark Diamond
2,227 doctors shared insights

Fever (Definition)

Fever is the temporary increase in the body's temperature in response to some disease or illness. A child has a fever when the temperature is at or above one of ...Read more