West Nile Virus Information  
 
What is West Nile virus?  
In 1999, West Nile Virus, a mosquito-borne infection, first appeared in New Your. Missouri found the virus in crows for the first time in the fall of 2001. The virus can cause encephalitis, which is an inflammation of the brain. The virus is spread by mosquitoes after they feed on infected birds and then bite people. It is not spread by person-to-person contact and there is no evidence that people can get the disease by handling infected animals.  
 
West Nile Virus cases occur primarily in the late summer or early fall, although the peak season is usually from April to October.  
 
Where do mosquitoes breed?  
There are more than 50 different species of mosquitoes in Missouri. While most do not transmit West Nile or other mosquito-borne viruses, several mosquito species have been associated with West Nile Virus in other states.  
 
Mosquitoes lay their eggs in standing water around the home, weeds, tall grass, shrubbery and discarded tires. By eliminating places for mosquitoes to breed, you can go a long way toward preventing West Nile Virus.  
 
Who is most at risk?  
People over 50 years of age have the highest risk of developing severe illness because the human body has a harder time fighting off disease as it ages. Children and people with compromised immune systems are also at increased risk. However, anyone can get the virus.  
 
What are the symptoms?  
Most people with infections have no symptoms, while others may experience fever, headache, body aches, skin rash and swollen lymph glands. People with more severe infections may experience high fever, headache, neck stiffness, stupor, disorientation, coma, tremors, occasional convulsions and paralysis. If you have any of these symptoms, contact your doctor.  
 
Is there treatment?  
There is no specific treatment for West Nile Virus infection. While most people fully recover from the virus, in some severe cases hospitalization may be needed.  
 
How can I protect myself?  
It is not necessary to limit outdoor activities, unless local officials advise otherwise.  
 
However, you can and should try to reduce your risk of being bitten by mosquitoes.  
 
In addition to reducing stagnant water in your yard, make sure all windows and doors have screens and that all screens are in good repair.  
 
If West Nile virus is found in your area:

• Avoid mosquito infested areas.
• Wear shoes, socks, long pants and a long-sleeved shirt when outdoors for long periods of time, or when mosquitoes are most active.
• Consider the use of mosquito repellent, according to directions, when it is necessary to be outdoors. Wash all treated skin and clothing when returning indoors.

This information is from the Kansas City Metropolitan Mosquito Task Force Brochure, an adaptation of a brochure from the state of Pennsylvania.