AP Photo/Martha Mendoza
Jeff Jarvis of Berkeley, Calif., holds his 4-year-old daughter, Sofia Jarvis, during a news conference at Lucille Packard Children's Hospital at Stanford University on Monday, Feb. 24, 2014, in Palo Alto, Calif. Sofia is one of a handful of California children who has been diagnosed with a rare polio-like syndrome that has left her arm paralyzed.