Over the past few weeks, KRON4 has told you about the West Nile virus showing up in the Bay Area.

Most recently, a mosquito tested positive in Solano County.

On Friday night, we’re seeing just how serious it can be when a person becomes infected.

A once-energetic third grader in Nebraska is slowly getting her strength back after getting the diagnosis.

Seemingly simple tasks like playing catch are slowly getting easier for Vivi Lee.

The 8-year-old has been at Sanford’s Children’s Hospital the last several days.

It started with basic kid stuff–a headache and vomiting.

But then, it got worse. Much worse.

“She was not even responding,” Vivi’s mom Jennifer said. “She was just like completely out of it, not even walking. I had to carry her in.”

After repeat walk-in and ER visits, Vivi underwent several tests.

“With her case, the West Nile virus caused viral meningitis,” Jennifer said.

Vivi had to be hospitalized immediately. She no longer could walk on her own and could barely talk.

The West Nile sparked encephalitis.

Her brain, nervous system, and muscle control were under attack.

“She just got just dizzy,” Jennifer said. “She is not walking as well. She is a very energetic child and loves to be outdoors, and now, she is learning how to walk all over again.”

Now, occupational therapists and others are working to get Vivi back on her feet and going to school at Clapp Elementary in Fargo, where her fellow classmates are patiently waiting for her.

They sent heartfelt messages, asking her to come back soon to third grade.

Vivi’s mom hopes that is just days away.

The last week-and-a-half have been too much for this mom and daughter.

“One bite, one infected mosquito, so yeah, one mosquito caused all of this damage,” Jennifer said.

California health officials say two people have died because of the West Nile virus so far this year.

​​​​​​They’re asking people to use insect repellent when outdoors and remove standing water to help prevent the spread of the virus.

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