5Milillo S R, Stout J C, Hanning I B, et al. Listeria monocyto- genes and hemolytic Listeria innocua in poultry[J]. Poultry Sci- ence,2012,91 (9) :2158-2163.
6Hellstrom S, Kiviniemi K, Autio T, et al. Listeria monocyto- genes is common in wild birds in Helsinki region and geno- types are frequently similar with those found along the food chain[J]. Appl Microbiol,2008,104(3) :883-888.