West nile disease. West nile encephalitis affects about 1 in 150 people who are infected with the virus. It may manifest with fever, stiff neck, headache, confusion, stupor, coma, tremors, seizure, weakness and possibly paralysis.
Mosquito-borne virus. West nile virus, transmitted by mosquito bites, can cause encephalitis, inflammation in the brain. There is no vaccine available to protect a person from west nile virus.
Virus. It is a virus that affects the brain, spread by mosquitos.
Yes. Absolutely, in recent years west nile virus has been in epidemic mode sweeping from the east coast of the us to the west. Encephalitis is present only in severe cases.
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.
NO, except.... The virus is vector-borne through mosquitoes. However, in a special case featured several years ago in the new england journal of medicine, an article described a case where recipients of organs harvested from a west nile virus-infected donor, became ill with west nile virus.
No. West nile encephalitis is spread through bites of mospuito carrying the virus..
Mosquito bites. One needs to be in an endemic area and bitten by an infected mosquito.
Mosquito bite. West nile occurs in epidemics, usually during summer, and seems to afflict humans and horses most often. Carried by mosquitoes and these bites infect the victim.
No. In fact, most people who get wnv infections don't die. Must people who do are the very young, the elderly, the immunocompromised, or someone with a genetic predisposition. However, a person with an encephalitis that is not appropriately managed supportively, can be at risk of dying if the brain herniates through the bottom of the skull.
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.
No. No, there is no west nile vaccine for humans as of yet.
No. Unfortunately not as yet.
1 in 150. Only 1 in 150 patients infected with the west nile virus develop encephalitis. West nile fever is much more common and is typically a self-limited disease. Individuals more susceptible to developing encephalitis from a west nile infection include the elderly, alcoholics and diabetics.
West Nile Virus. West nile virus travels through an insect vector. The virus will undergoe a viremia state during which it is spread to organs throughout the body, including the brain.
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.