zh.wikipedia.org/wiki/%E8%8D%B8%E8%8D%A0
1 correction found
否则易導致薑片蟲卵進入腸道寄生
姜片虫感染并不是由“虫卵进入肠道寄生”造成的。权威寄生虫资料显示，人或猪是通过吃下附着在水生植物上的囊蚴（metacercariae）而感染；虫卵排出后还需在水体和螺类中继续发育，不能直接在人体肠道内寄生。
Full reasoning
这句话把姜片虫的感染阶段说错了。
根据 CDC 的 Fasciolopsis（姜片虫）资料：
- 人会因食用生的或未煮熟的水生植物而感染，原因是这些植物上附着了被包囊的寄生虫阶段。
- 姜片虫卵会先随粪便排出，随后在淡水中发育，并必须感染螺类中间宿主；之后从螺体释放出的尾蚴再在水生植物上形成囊蚴（metacercariae）。
- 真正使人感染的是囊蚴，不是虫卵。CDC DPDx 还明确写到虫卵在粪便中排出时是未胚化的（unembryonated），说明它们不能在被吃下后直接在人体肠道里开始寄生。
因此，把风险表述为“姜片虫卵进入肠道寄生”在寄生虫生活史上是错误的；更准确的说法应是：生食受污染水生植物时，可能因摄入附着其上的姜片虫囊蚴而感染。
2 sources
- About Fasciolopsis | Fasciolopsis | CDC
You can get infected by eating raw or undercooked aquatic plants that have the organism encysted ... on them. People and pigs pass the eggs in their feces. The eggs develop in freshwater and infect snails. After further development in the snails, the parasites leave the snail and attach to freshwater plants. People become infected when they eat the contaminated water plants, such as watercress, raw (or undercooked).
- CDC - DPDx - Fasciolopsiasis
The cercariae are released from the snail and encyst as metacercariae on aquatic plants. The mammalian hosts become infected by ingesting metacercariae on the aquatic plants... Eggs of Fasciolopsis buski are ... unembryonated when passed in feces.