By Patpicha Tanakasempipat NAKHON PATHOM, Thailand (Reuters) -Business began unravelling for Thai pig farmer Jintana Jamjumrus two years ago, after dozens of her animals got feverish and died within days of a mysterious illness she suspected of being a viral disease with no known vaccine, African swine fever (ASF). This month, officials identified the first case of ASF in Jintana’s province of Nakhon Pathom, after years of saying it was not in Thailand, unleashing a political firestorm as pork prices hit an all-time high near which they may stay for months. “There’s no way they didn’t know. Pi…