4Peng W,Anderson TL,Zhou X,et al.Genetic variation in sympatric Ascaris populations from humans and pigs in China[J].Parasitol,1998,117:355-361.
5Levine ND.Nematode Parasites of Domestic Animals and of Man[M].2nd edition.Minneapolis:Burgess Publishing Co,1980:47.
6Urban JR,Joseph F,Rasmussen T,et al.Migration and development of Ascaris suum larvae in erthrocebus paw:model for visceral larva migrants in humans.TEKTRAN,United States Depattinent of Agriculture[M].Agricultural Research Service,Approved Date,1998,8:3.
7Santoso H.Factors associated with asthma in urban school children in Denpasar,Bali[J].Int Child Health,1997(4):23-30.
8Hill DE,Fetterer RH,Romanowski RD,et al.The effect of immunization of pigs with Ascaris suum cuticle components on the development of resistance to parenteral migration during a challenge infection[J].Vet Immunol Immunopathol,1994,42:161-169.
9Kelly G,Nayak DP.Acquired immunity to migrating larvae of Ascaris suum induced in pigs by repeated oral inoculation of infective eggs[J].J Parasitol,1964,50:499-503.
10Stankiewicz M,Jeska EL.Evaluation of pyrantel-tartrate abbreviated Ascaris suum infections for the development of resistance in young pigs against migrating larvae[J].Int J Parasitol,1990,20:77-81.
