21—64.176 (165A) Segregation, cleaning, and disinfecting. Positive animals, consigned to slaughter through a state-federal approved auction market, must be maintained separate and apart from noninfected animals. Positive animals must be the last class of animal sold. Cleaning and disinfection of the alleyways, pen(s) and sale ring used to house positive animals must be accomplished prior to the next scheduled sale. Affected animals entering slaughter marketing channels must be moved directly to the slaughter facility or the slaughter market concentration point. Transportation vehicles used to haul affected animals shall be cleaned and disinfected after such use and before transporting any additional animals.