A New Hampshire man is battling a serious tick-borne virus that has left him in critical condition. According to friends and family, John Reagan, 66, is nonverbal after he was bitten by a tick while walking his dog. He was hospitalized in Boston, where his condition deteriorated quickly after he was admitted. “When he first went into the emergency room, he was sitting up and talking to me, and I was there with his wife,” Regan’s longtime friend Tom Wright told CBS News . “And the next day, we