卵(egg)椭圆形，金黄色，卵盖(operculum)大而明显，卵壳薄厚不均，卵内含有一个卵细胞【egg cell和许多卵黄细胞(yolkcell)
二.生活史1.阶段：2-3月卵----毛蝴---胞蝴---母子雷蝴---尾蝴---囊----成虫2.特点：1)成虫寄生于肺内2)中间宿主：I川卷螺Ⅱ蟹3)生食半生食含有囊蜘的蟹、喇而感染4）童虫在体内移行5）异位寄生：皮下等部位6）食入转续宿主也可感染
二.生活史 1.阶段： 卵-毛蚴-胞蚴-母子雷蚴-尾蚴-囊蚴-成虫 2.特点 :1)成虫寄生于肺内. 2)中间宿主:Ⅰ川卷螺 Ⅱ蟹 蝲蛄 3)生食半生食含有囊 蚴的蟹、蝲蛄而感染 4）童虫在体内移行 5）异位寄生：皮下等部位 6）食入转续宿主也可感染 2-3月
Cercariaeinvadethecrustacear5andencyst into metacercariae.AAInfectiveStageADiagnostic StageaeHumans inges6nadeguatelycooked orpickled4crustaceans containingmetacercariae.Excystinduodenum3Miracidia hatctandpenetratesnaiAdults in cysticcavities in lungslayeggs whichareexcretedinsputum2Embryonated eggsAlternately eggsare swallowedUnembryonatedeggsandpassedwithstool
A miracidium hatching out of a Paragonimus egg.The egg takes about 3 weeks in water to embryonate.Interference contrast
A miracidium hatching out of a Paragonimus egg. The egg takes about 3 weeks in water to embryonate. Interference contrast