Transmission dynamics of Taenia solium and potential for pig-to-pig transmission

被引:30
作者
Gonzalez, AE [1 ]
Lopez-Urbina, T
Tsang, B
Gavidia, C
Garcia, HH
Silva, ME
Ramos, DD
Manzanedo, R
Sanchez-Hidalgo, L
Gilman, RH
Tsang, VCW
机构
[1] Univ Nacl Mayor San Marcos, Sch Vet Med, Lima 14, Peru
[2] Ctr Dis Control, Immunol Branch, Div Parasit Dis, Natl Ctr Infect Dis, Atlanta, GA 30333 USA
[3] Univ Peruana Cayetano Heredia, Lima, Peru
[4] Inst Nacl Ciencias Neurol, Cysticercosis Unit, Lima, Peru
[5] Johns Hopkins Univ, Bloomberg Sch Publ Hlth, Dept Int Hlth, Baltimore, MD USA
关键词
Taenia solium; porcine cysticercosis; transmission dynamics;
D O I
10.1016/j.parint.2005.11.021
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
Taenia solium taeniasis/cysticercosis is one of few potentially eradicable infectious diseases and is the target of control programs in several countries. The larval stage of this zoonotic cestode invades the human brain and is responsible for most cases of adult-onset epilepsy in the world. Our current understanding of the life cycle implicates humans as the only definitive host and tapeworm carrier, and thus the sole source of infective eggs that are responsible for cysticercosis in both human and pigs through oral-faecal transmission. Here we review transmission dynamics of porcine cysticercosis including an alternative pig-to-pig route of transmission, previously not suspected to exist. Second-hand transmission of T solium eggs could explain the overdispersed pattern of porcine cysticercosis, with few pigs harbouring heavy parasite burdens and many more harbouring small numbers of parasites. (C) 2005 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:S131 / S135
页数:5
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