The woman, who is in her mid-20s, visited her family doctor after experiencing headaches, body aches, rash, and malaise, according to
In addition to the symptoms, the
The virus is spread through the bite of infected mosquitoes, which acquire it by feeding on infected birds. The illness is not spread from person to person. Once a person has been exposed to the virus, he or she becomes immune to further infection.
Although the virus can cause serious illness in humans, about 80 percent of people who are infected notice no symptoms and about 20 percent experience mild flu-like symptoms. About 1 in 150 people infected with West Nile develops severe illness, and about one in 1,000 cases is fatal. People over the age of 50 are at greatest risk of serious illness.
Source: Montana Department of Public Health and Human Services