West Nile virus
West Nile virus (pronunciation: /wɛst naɪl ˈvaɪrəs/) is a virus that is most commonly transmitted to humans by mosquitoes. The virus is named after the West Nile district in Uganda where it was first identified in 1937.
Etymology
The term "West Nile virus" is derived from the West Nile district of Uganda, where the virus was first isolated in 1937. The word "virus" comes from the Latin virus meaning poison or venom.
Transmission
West Nile virus is primarily transmitted through the bite of an infected mosquito. Mosquitoes become infected when they feed on infected birds, which often carry the virus. Infected mosquitoes can then spread the virus to humans and other animals when they bite.
Symptoms
Most people infected with West Nile virus do not have symptoms. About 1 in 5 people who are infected develop a fever and other symptoms such as headache, body aches, joint pains, vomiting, diarrhea, or rash. Less than 1% of infected people develop a serious, sometimes fatal, neurological illness.
Prevention
Prevention methods for West Nile virus include using insect repellent, wearing protective clothing, and making sure windows and doors have screens to keep mosquitoes out. It's also important to empty standing water where mosquitoes breed.
Treatment
There is no specific treatment for West Nile virus. Most people with mild symptoms recover on their own, but severe cases may require hospitalization.
Related Terms
External links
- Medical encyclopedia article on West Nile virus
- Wikipedia's article - West Nile virus
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