《人体寄生虫学 Human parasitology》课程教学课件（讲稿）Lectures 3.Paragonimus westermani

Review

Review

Life Cycle of C.s1. Infective stage:metacercaria;2.Infective route and mode:Oral route (eating raw fresh water fish and shrimpswith metacercariae);3. Site of inhabitation: bile ducts;4. Biohelnimth: 1st Int. hosts: 2nd int. hosts:5. Reservoir hosts:

Life Cycle of C.s 1. Infective stage: 2. Infective route and mode: Oral route (eating raw fresh water fish and shrimps with metacercariae); 3. Site of inhabitation: 4. Biohelnimth: 1st Int. hosts: 2nd int. hosts: 5. Reservoir hosts: metacercaria; bile ducts;

Clinical manifestationDiagnosisTreatment

•Clinical manifestation •Diagnosis •Treatment

吸虫Trematode店华枝吸虫布氏姜片虫卫氏并殖吸虫日本血吸虫斯氏狸殖吸虫（肺吸虫）（血吸虫）（肠吸虫）（肝吸虫）FasciolopsisPagumogonimusSchistosomaParagonimusClonorchisbuskiskrjabinijaponicumwestermanisinensis

The Genus Paragonimus1.Para-in parallel, gonimus=gonads2. These worms'reproductive organs stand side by side3. Adult worms usually live in the lungs of man and carnivorescausing paragonimiasis. ( lung flukes)4.Zoonogic parasite: animal>human5.Two major species in China:Paragonimuswestermani,Pagumogonimusskrijabini

The Genus Paragonimus 1.Para=in parallel, gonimus=gonads. 2. These worms’ reproductive organs stand side by side 3. Adult worms usually live in the lungs of man and carnivores causing paragonimiasis.（lung flukes) 4 .Zoonogic parasite: animal>human. 5.Two major species in China: Paragonimus westermani, Pagumogonimus skrijabini

Paragonimus westermani p157Oriental lung fluke

Paragonimus westermani p157 Oriental lung fluke

General Introduction:Favorite lodging site - the lung (lung fluke)Ectopic lodging site - brain, muscle etc

General Introduction: Favorite lodging site – the lung (lung fluke); Ectopic lodging site – brain, muscle etc

Morphological Features:Adult worm:Oral suckerab0ut 7.5-12x4-6x1-3 mmIntestine1.Body - thick, dorsally bulging.2.Tegument - spines.Acetabulum3.Suckers: oral = ventral.Uterus4.Parallel arrangement ofOvaryVitellariareproductive organs:TestisLobular testes - posteriorly:A8Lobular ovary &uterusanteriorly.8

Morphological Features: Adult worm： about 7.5-12×4-6×1-3 mm 1.Body – thick , dorsally bulging. 2.Tegument – spines. 3.Suckers: oral = ventral. 4.Parallel arrangement of reproductive organs: Lobular testes – posteriorly; Lobular ovary & uterus – anteriorly

F海吉

Aadultof Paragonimus westermanigutmehlis'glandovarytestisvitellariaexcretion duct

A adult of Paragonimus westermani