4Levine N D.Verterinary protozoolgy[M].Iowa:Ames Iowa State Unicersity Press,1985:109-130.
5Samuel W M.Parasitic diseases of wild mammals[M].Manson:Manson Publishing The Verterinary Press,2001:397-401.
6Guevara Y,Haro I D,Cabrera M,et al.Enteroparasitoses in indigenous and mestizo individuals from the Nayarit mountain range[J].Mexico Parasitologia Latinoamericana,2003,58(1-2):30-34.
7Subbannayya K,Babu M H,Stephen S,et al.Natural occurrence of antibodies to Entamoeba histolytica in domestic animals and fowls[J].Indian Veterinary Journal,1988,65(5):388-390.