spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states Dog Flu Virus Spreading Across The United States spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states National Public Radio spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states spread to more than 25 states