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Jul 3, 2023 · It's a flavivirus —a specific type of RNA virus that can infect humans, birds and horses. "West Nile virus is transmitted predominantly through the bite of an infected mosquito. Less commonly, it can be transmitted through other means, like blood transfusion," says Dr. Pritt.
May 14, 2024 · West Nile virus disease (West Nile) is caused by a virus primarily spread to people through the bite of infected mosquitoes. West Nile virus is maintained in the environment between mosquitoes and birds. People do not spread the infection other than rarely through blood transfusions, organ transplantation, and mother to baby. Primary cause.
- Symptoms
- Diagnosis
- Treatment
- Immunity
No symptoms in most people.Most people (8 out of 10) infected with West Nile virus do not develop any symptoms. Febrile illness (fever) in some people.About 1 in 5 people who are infected develop a fever with other symptoms such as headache, body aches, joint pains, vomiting, diarrhea, or rash. Most people with febrile illness due to West Nile viru...
If you think you or a family member might have West Nile virus disease, talk with your health care provider. 1. Healthcare providers diagnose West Nile virus infection based on: 1.1. Signs and symptoms 1.2. History of possible exposure to mosquitoes that can carry West Nile virus 1.3. Laboratory testing of blood or spinal fluid 2. Your healthcare p...
No vaccine or specific medicines are available for West Nile virus infection. Antibiotics do not treat viruses.Rest, fluids, and over-the-counter pain medications may relieve some symptoms.In severe cases, patients often need to be hospitalized to receive supportive treatment, such as intravenous fluids, pain medication, and nursing care.Most people infected with West Nile virus are believed to have lifelong immunity from getting the disease again. Some people who have weakened immune systems from certain conditions or medications might not have a strong immune response to the initial infection or their immunity may wane over time. However, most people are protected from getting We...
Flavivirus includes the yellow fever, West Nile, Japanese encephalitis, and tick-borne encephalitis viruses. In 1943, Ren Kimura and Susumu Hotta first isolated the dengue virus. These two...
Oct 16, 2023 · Health Library / Diseases & Conditions / West Nile Virus. West Nile is a virus that spreads through mosquito bites. Most people infected with West Nile virus don’t have symptoms. About 1 in 5 people have symptoms like fever, rash and muscle aches. Rarely, West Nile can cause serious brain and spinal cord inflammation (encephalitis and meningitis).
Oct 3, 2017 · Key facts. West Nile virus can cause a fatal neurological disease in humans. However, approximately 80% of people who are infected will not show any symptoms. West Nile virus is mainly transmitted to people through the bites of infected mosquitoes. The virus can cause severe disease and death in horses. Vaccines are available for use in horses ...
Nov 20, 2022 · Dengue, West Nile and Zika viruses are vector-borne flaviviruses responsible for numerous disease outbreaks in both Hemispheres. Despite relatively low mortality, infection may lead to potentially severe situations such as (depending on the virus): hypovolemic shock, encephalitis, acute flaccid paralysis, Guillain-Barré syndrome, congenital ...
