GOLDEN, Colo. (AP) -- The woman's name and town were not released. She died Saturday and her case was reported to health officials today.
It would be at least the 68th confirmed human case of West Nile in the Colorado this year and the first in Jefferson County.
Of the cases statewide, 15 have resulted in neurological diseases that can result in death, particularly among the elderly.
Mosquitoes transmit West Nile, often picking it up from birds they bite and then spreading it to people.
Only about one in five infected people get sick. One in 150 infected people will develop severe symptoms including neck stiffness, disorientation, coma and paralysis.
(Copyright 2006 by The Associated Press. All Rights Reserved.)