Thailand bans pig imports from Laos after African swine fever outbreak     BANGKOK (Reuters) - Thailand will ban pig imports from Laos for 90 days after its neighbour confirmed the first outbreak of deadly African swine fever, an official notice said.   The ban would cover live pigs and carcasses in an effort to prevent the disease from spreading into Thailand, said a notice on the Thai Department of Development of Livestock on Friday.   The move follows a