Martha Bebinger

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STEVE INSKEEP, HOST:

It was low tide on the north shore of Boston when Steve Kearns felt the mosquito bite that would land him in a hospital with West Nile Virus disease for a week.

"For at least six months after that, I felt like every five minutes I was being run over by a truck," Kearns says. "I couldn't work, I couldn't walk very well and I couldn't focus. I wondered for a bit if I'd ever get better."