May 15, 2024 · West Nile virus can result in febrile illness or neurologic disease, including meningitis or encephalitis. If you think you or a family member might have West Nile virus disease (West Nile), talk with your health care provider.

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 …

West Nile virus (WNV) is a single-stranded RNA virus that causes West Nile fever. It is a member of the family Flaviviridae, from the genus Flavivirus, which also contains the Zika virus, dengue virus, and yellow fever virus. The virus is primarily transmitted by …

Learn how to treat and prevent West Nile virus disease. Learn the clinical signs and symptoms of West Nile virus disease. Know what tests to order to diagnose West Nile virus infection. Know the cause of West Nile virus disease and how it is transmitted. Link to additional information about West Nile virus in the United States.

Oct 3, 2017 · West Nile Virus (WNV) can cause neurological disease and death in people. WNV is commonly found in Africa, Europe, the Middle East, North America and West Asia. WNV is maintained in nature in a cycle involving transmission between birds and mosquitoes.

May 15, 2024 · West Nile virus is the leading cause of mosquito-borne disease in the continental United States. It is most commonly spread to people by the bite of an infected mosquito. Cases of West Nile occur during mosquito season, which starts in the summer and continues through fall.

What is the West Nile virus? The West Nile virus is spread by mosquitoes. The West Nile virus can infect humans, birds, mosquitoes, horses, and some other mammals. In very rare cases, the virus can spread in transfused blood, a transplanted organ, or through the placenta to a fetus.

2 days ago · In the summer of 1999, the CDC — under Roehrig's leadership — was able to confirm that the mystery virus sweeping New York City was indeed West Nile virus, which had been discovered in Uganda ...

West Nile virus, virus in the family Flaviviridae, related to viruses that can cause yellow fever, dengue, and encephalitis. Predominantly an infection of birds, West Nile virus is highly fatal for many avian species.

Jul 3, 2023 · "West Nile virus is the leading cause of mosquito-borne illness in the U.S.," says Dr. Bobbi Pritt, director of the Clinical Parasitology Laboratory at Mayo Clinic. It's a flavivirus —a specific type of RNA virus that can infect humans, birds and horses.