| http://www.w3.org/ns/prov#value | - However, about one in five people who are infected will develop a mild form of the illness referred to as West Nile fever, with symptoms that may last a few days or as long as several weeks.Fewer than 1 percent of infected people develop a serious, sometimes fatal, neurological illness, with symptoms such as high fever, neck stiffness, stupor, disorientation, coma, tremors, convulsions, muscle wea
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