Scientists from Bolivia and Uruguay find that the parasitic disease Echinococcosis, which causes cysts on the vital organs of dogs and other mammals, can also be transmitted to humans who consume sheep that have ingested the parasite.

http://english.cntv.cn/20100926/100807.shtml
http://cmr.asm.org/cgi/content/full/17/1/107#The%20Parasite%20and%20Its%20Life%20Cycle