Slaughterhouse workers and sellers in markets worked to slaughter pigs. Sellers generally choose
pigs to buy and then sellers did all stages of slaughtering by themselves with the help of other
workers. They didn’t wear protective gears such as apron, gloves and uniform but they only wore
boots. People could enter every slaughter areas freely without cleaning or disinfection of their body,
boots and clothing. They didn’t wash floor and equipment with detergent after slaughtering each pig
and kept slaughtering without intermission. Furthermore, facilities were primitive and there were
no cool room or no pest control measures