寄生虫--肺吸虫.ppt

3. Infective way: Eat the raw crab or “drunk crab” B. Eat the raw meat of transport host C. Drink the unboiling water Treatment Pay attention to the eating habit , not to eat the raw crab,not to drink the unboiling water 2. Treat the patient: Praziquantel Albendazole Tribendimidine Artemether Artesunate Paragonimus skrjabini Morphology 1. Adult Shape : Olive Sucker: Ventral sucker is larger than oral sucker Testes and ovary have more lobation 2. Egg: Similar to paragonimus westermuni Live cycle Essential similar to paragonimus westermuni The different from it is that: 1. Definitive host: fruit-eating fox (the main) Human : Abnormal host ,only young worm infect them. 2.The No.1 intermediate host: The snail which grow in the small stream Tricula spp (拟钉螺） Pathogenesis and clinical manifestations: Larva migrans: some parasite invade human being , human is not the normal host, it only stay in the stage of young worm, the young worm paraste and migration in the body for a long time, at last it cause particular and peneral pathologic change. Clinical symptom: 1.Subcutaneous type: cysts Area: back and abdomen, four limbs, inguinal region(腹股沟区), head and neck 2. Internal organ: differ from what it invade the organ Diagnosis 1. Operation: 2. Blood examination: 3. Immunologic test Epidemiology and treatment Similar to paragonimus westermuni paragonimus Typical character Female genital system: Ovary and womb are at the same level on midline Male genital system: Testes are located at the junction of the posterior fourth of the body The main parasite including: Paragonimus westermani 2. Paragonimus skrjabini 3. Paragonimus heterotremus Paragonimus westermani Oral sucker Vetral sucker Cecum Uterus Ovary Testes Excretory bladder 1.adult Morphology 2. Egg 卵盖operculum 卵壳eggshell 卵细胞ovotid 卵黄细胞 yolk cell Egg operculum ovotid yolk cell Live cycle Adult egg Eggs pass into water in feces mirac