Paragonimus westermani 卫氏并殖吸虫 ung fluke,肺吸虫) Adult Miracidium Human animal (Final hos ventral suder Larva Talana Testis Semisulcospira sp, Bladder Metacercaria Enocheir sinensis Cambaroides simis M icrocercous
Paragonimus westermani 卫氏并殖吸虫 (lung fluke,肺吸虫)
Introduction The reproductive organs of paragonimus stand side by side Adult worms usually live in the lungs of man and carnivores causing paragonimiasis, so they are also called lung flukes It is essentially a zoonosis, reservoir hosts including dogs, cats and tigers a In china, there are two species of lung flukes of medical importance: Paragonimus westermani Pagumogonimus skriabini
Introduction ◼ The reproductive organs of paragonimus stand side by side ◼ Adult worms usually live in the lungs of man and carnivores causing paragonimiasis，so they are also called lung flukes ◼ It is essentially a zoonosis, reservoir hosts including dogs, cats and tigers ◼ In china, there are two species of lung flukes of medical importance: Paragonimus westermani, Pagumogonimus skrjabini
Introduction a Paragonimus westermani was first found in a Bengal tiger's lung in India in 1877 It is the main kind of lung flukes infecting man a In China, P westermani prevalent in 23 provinces, city and autonomic region except Xinjiang, Xizang, Qinghai, Gansu, Ningxia, Inner Mongolia and shandong
◼ Paragonimus westermani was first found in a Bengal tiger’s lung in India in 1877 ◼ It is the main kind of lung flukes infecting man ◼ In China, P. westermani prevalent in 23 provinces, city and autonomic region except Xinjiang, Xizang, Qinghai, Gansu, Ningxia, Inner Mongolia and Shandong Introduction
Introduction Infection occurs in Asia(especially in China, Korea, India, Japan, Laos, Philippines, Sri Lanka, Thailand, viet-Nam), Central-West Africa, South America(Ecuador, Peru, venezuela) Geographic distribution of Paragonimiasis
Introduction Infection occurs in Asia (especially in China, Korea, India, Japan, Laos, Philippines, Sri Lanka, Thailand, Viet-Nam), Central-West Africa, South America (Ecuador, Perù, Venezuela)
Morphology Adult worm Elliptic, dorsally convex while ventrally flattened as half of a peanut Reddish-brown in color About75-12×4-6×1-3mm (length width=2: 1) The ventral sucker is located in the central position of the body Two testes, the ovary and the uterus are situated side by side characteristic configuration
Morphology Adult worm ◼Elliptic, dorsally convex while ventrally flattened as half of a peanut ◼Reddish-brown in color ◼About 7.5-124-61-3 mm (length:width=2:1) ◼The ventral sucker is located in the central position of the body ◼Two testes, the ovary and the uterus are situated side by side – characteristic configuration