Pig as a Favorable Animal for Taenia Saginata Asiatica Infection

豬可充作試驗傳染亞洲及非洲無鉤絛蟲之最佳動物中間宿主

范秉真(Ping-Chin Fan) ； 鍾文政(Win-Cheng Chung) ； 林君勇(Chung-Yung Lin) ； 吳金正(Chin-Cheng Wu)

《The Kaohsiung Journal of Medical Sciences》 22卷1期 (2006/01) Pp. 1-13

摘要

亞洲有些地區流行之無鉤絛蟲的中間宿主較欠清楚，因為牛肉不是傳染來源。在某些地區，牛不僅非適合之中間宿主，亦非圈養之家畜動物，而且當地居民也不生吃牛肉，同時吃豬肉時均為生吃。因此種結果，我們認為豬也可能為傳染無鉤絛蟲之中間宿主。在此項試驗中，應用台灣絛蟲、韓國絛蟲、印尼絛蟲、泰國絛蟲、菲律賓絛蟲、衣索比亞絛蟲及馬達加斯加絛蟲各餵給下列三種83隻豬：包括43隻SEM種、34隻L-SEM種、6隻DYL種；10隻Holstein牛，17隻Sannean山羊，及4隻猴。用台灣絛蟲傳染SEM豬（轉染率88%，囊蟲回覆率19.1%），L-SEM豬(83%, 1.1%)及DYL豬(100%, 0.3%)；韓國絛蟲傳染SEM豬(100%, 1.7%)，L-SEM豬(100%, 5.6%)及DYL豬(100%, 0.06%)；印尼絛蟲傳染SEM豬(100%, 22%)及L-SEM豬(100%, 1.6%)；泰國絛蟲傳染SEM豬(75%, 0.06%)；菲律賓絛蟲傳染SEM豬(100%, 11%)；衣索比亞絛蟲傳染SEM豬(80%, 0.005%)；及馬達加斯加絛蟲傳染SEM豬(100%, 0.2%)。除馬達加斯加及印尼絛蟲外，台灣絛蟲(100%, 1.1%)、韓國絛蟲(100%, 0.03%)、泰國絛蟲(100%, 0.2%)及菲律賓絛蟲(100%, 6%)均可傳染Holstein牛，惟韓國、泰國、菲律賓絛蟲之囊蟲均被退化或鈣化。Sannean山羊傳染台灣絛蟲(33%, 0.01%)及韓國絛蟲(50%, 0.02%)；猴傳染台灣絛蟲(50%, 0.01%)，惟囊蟲均被退化或鈣化。在這些動物中，豬顯然為最適合可以充作試驗傳染亞洲及非洲絛蟲之家畜動物。

關鍵字

亞洲無鉤蟲 ； 絛蟲病

並列摘要

The epidemiology of Taenia saginata in some parts of Asia is confusing, in that beef does not appear to be the source of infection. In some areas, beef is either not available or not eaten raw, whereas pork at times is eaten uncooked. In light of this situation, we have exposed pigs and other animals to infection with strains of T. saginata to establish their ability to serve as intermediate hosts. Eggs of Taiwan Taenia, Korea Taenia, Indonesia Taenia, Thailand Taenia, Philippines Taenia, Ethiopia Taenia, and Madagascar Taenia were fed to 83 pigs of three strains: 43 Small-Ear Miniature (SEM), 34 Landrace Small-Ear Miniature (L-SEM), and 6 Duroc-Yorkshire-Landrace (DYL). We also fed the eggs to 10 Holstein calves, 17 Sannean goats, and 4 monkeys (Macaca cyclopis). We succeeded in infecting SEM (infection rate 88%, cysticercus recovery rate 19.1%), L-SEM (83%, 1.1%), and DYL (100%, 0.3%) pigs with Taiwan Taenia; SEM (100%, 1.7%), L-SEM (100%, 5.6%), and DYL (100%, 0.06%) pigs with Korea Taenia; SEM (100%, 22%) and L-SEM (100%, 1.6%) pigs with Indonesia Taenia; SEM (75%, 0.06%) pigs with Thailand Taenia SEM (100%, 11%) pigs with Philippines Taenia; SEM (80%, 0.005%) pigs with Ethiopia Taenia; SEM (100%, 0.2%) pigs with Madagascar Taenia. Holstein calves became infected with Taenia from Taiwan (100%, 1.1%), Korea (100%, 0.03%), Thailand (100%, 0.2%), and the Philippines (100%, 6%); however, the cysticerci of Taenia from Korea, Thailand, and the Philippines were degenerated and/or calcified. Sannean goats became infected with Taenia from Taiwan (33%, 0.01%) and Korea (50%, 0.02%), while monkeys became infected with Taenia from Taiwan (50%, 0.01%). However, the cysticerci were degenerated and/or calcified. Therefore, these strains of pig seem to be favorable animal models for experimental studies of T. saginata-like tapeworms, with the SEM pig the most favorable.

並列關鍵字

pig ； Taenia saginata asiatica ； taeniasis