3Charles A Janewav Paul Travers. Immunobiolugy: the immune system in health and disease [ M ]. Second edition. New York: Ga-land publishing Inc. 1996 : Chapter3,3 : 1-3 : 42.
4Abul K A, Andrew H L, Shiv Pillai. Cellular anti molecular immunology [ M ]. 5th edition. Philadelphia : W. B. Saunders Company, 2003 : 33-64.
5Medzhitov R, Preston-Hurlburt P, Janeway C A. A human homologue of the Drosophila Toll protein signals activation of adaptive immunity[J]. Nature, 1997, 388(6640): 394-397.
6Lorenz E, Mira J P, Cornish K L, et al. A novel polymor- phism in the Toll-like receptor 2 geneand its potential associa- tion with staphylococcal infection[J]. Infection and Immuni- ty, 2000, 68(11): 6398-6401.
7Koets A, Santema W,Mertens H,et al. Susceptibility to paratu- berculosis infection in cattle is associated with single nucleotide polymorphisms in Toll-like receptor 2 which modulate immune re- sponses against Mycobacterium avium subspecies paratuberculosis [J]. Prev Vet Med,2010,93(5) 305-315.