Fasciolopsis BuskiFasciolopsis Buski（布氏姜片吸虫）（布氏姜片吸虫）

07 动医（ 1 ）班蔡晓霞 高雅羡 梁敏 梁艳芳 沈丹雪

Introduction

Fasciolopsis buski （布氏姜片吸虫） is

prevalent （流行的） in Southeast Asia and living

in the small intestine （小肠） of humans and

pigs, so it is also called Asia Giant Intestinal Fluke.

The prevalence of fasciolopsiasis （布氏姜片吸虫病 ） is related to growing water plants and

feeding pigs on water plants.

Morphology （病原形态） 1. Adult: the body is long elliptic （椭圆形的） ,

flesh-colored, looks like a slice of raw meat. The size

is about 20~75× 8~20 ×0.5~3mm, the largest one of

human trematodes （吸虫） . The ventral sucker

（ 腹 吸 盘 ） is nearby the much smaller oral

sucker （ 口 吸 盘 ） . Two coral-liked testes are

located in the posterior half of the body.

Oral sucker

acetabulum

2. Egg: it is oval in shape, slight

yellow in color, The size is about

130~145×85~97µm(the largest

helminth （寄生虫） egg. The thin

shell （ 卵 壳 ） with an

operculum （卵盖） encloses an

ootid （卵细胞） and 30~50 yolk

cells （卵黄细胞） .

Epidemiology （流行病学）

This disease occurs in Asia and the

Indian subcontinent, especially in

areas where humans raise pigs and

consume raw aquatic plants （水生植物） .

Life cycle （生活史）1. Site of inhabitation （寄生部位） : small intestine

2. Infective stage: metacercaria （囊蚴）3. Infective mode: eating raw water plants with

metacercariae

4. Medium of water plants: chestnut, water bamboo and

caltrop

5. Intermediate host （中间宿主） : segmentina （扁卷螺）6. Reservoir host （保虫宿主） : pig

7. Life span: 1-4 years

Symptoms （症状） Most infections are light and asymptomatic （无症状的） .

In heavier infections, symptoms include diarrhea

（下痢） , abdominal pain （腹痛） , fever,

ascites （腹水） , anasarca （全身水肿） , and

intestinal obstruction （肠梗阻） .

Diagnosis （诊断）

Stool examination （粪检） :

1. Direct fecal smear （直接涂片法）

2. Water sedimentation method

（沉淀法）

Treatment and Prevention （防治）

1. Treatment

（ 1 ） Dipterex （敌百虫） （ 2 ） Bitin （别丁） （ 3 ） Praziquantel （吡喹酮） （ 4 ） Amosconate ( 硝硫氰胺） （ 5 ） Nitroscanate ( 硝硫氰醚）

2. Comprehensive Prevention

(1) Health education

(2) Feces management （粪便处理 )

(3) Periodic deworming （定期驱虫） (4) Snail control

(5)Management of pig husbanandry: avoid fe

eding pigs on raw water plants

References( 参考文献） ""Fasciolopsiasis" at Stanford.edu". Retrieved

2007-07-03. Weng YL, Zhuang ZL, Jiang HP, Lin GR, Lin

JJ (1989). "Studies on ecology of Fasciolopsis buski and control strategy of fasciolopsiasis" (in Chinese). Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 7 (2): 108–11. PMID 2805255.

"Tropical Medicine Central Resource". Retrieved 2007-07-03.