The following media were compared for routine culture and isolation of E. tracheiphila :glucose nutrient agar (GNA)
(26) consisting of 23 g of Difco nutrient agar and 5 g of glucose per liter water; yeast extract dextrose calcium carbonate
agar (YDC) consisting of 10 g of yeast extract,20 g of dextrose, 20 g of calcium carbonate, and 15 g of agar per liter of
water; and nutrient agar supplemented with extra agar and peptone (NAP) described above