Echinostomatoidea

Life cycle of the trematode parasites Fasciola hepatica and F. giganticaImmature eggs are discharged in the biliary ducts and in the stool (1). Eggs become embryonated in water (2) and release miracidia (3), which invade a suitable snail intermediate host (4), including snails in the genera Galba, Fossaria, and Pseudosuccinea. In the snail, the parasites pass through several developmental stages (sporocyst (4a), redia (4b), and cercaria (4c)). The cercariae are released from the snail (5) and encyst as metacercariae on aquatic vegetation or other surfaces. Mammals acquire the infection by eating vegetation containing metacercariae. Humans can become infected by ingesting metacercariae-containing freshwater plants, especially watercress (6). After ingestion, the metacercariae excyst in the duodenum (7) and migrate through the intestinal wall, the peritoneal cavity, and the liver parenchyma into the biliary ducts, where they develop into adults (8). In humans, maturation from metacercariae into adult flukes takes approximately 3 to 4 months. The adult flukes (Fasciola hepatica: up to 30 mm by 13 mm; F. gigantica: up to 75 mm) reside in the large biliary ducts of the mammalian host. Fasciola hepatica infect a variety of mammals, but mostly herbivores.From Centers for Disease Control Parasites and Health website.

Summary[edit] Description: English: Unstained Echinostoma egg from faeces preserved in formalin. Source: : This media comes from the Centers for Disease Control and Prevention's Public Health Image Library (PHIL), with identification number #655. Note: Not all PHIL images are public domain; be sure to check copyright status and credit authors and content providers. العربية | Deutsch | English | македонски | slovenščina | +/−. Author: Centers for Disease Control and Prevention and Dr. Mae Melvin.

Summary[edit] Description: English: A simple diagram to show the difference between the teguments of free-living and parasitic flatworms: a. shows the syncytial epithelial tegument found in parasitic flatworms, such as F. hepatica. b. shows the multicellular, non-syncytial, epithelia, found in non-parasitic, free-living flatworms. Date: 19 March 2016. Source: Own work. Author: Izzytr19.

: This file has been superseded by File:Echinostomiasis Life Cycle no watermark.gif. It is recommended to use the other file. Please note that deleting superseded images requires consent. Reason to use the other file: "image without watermarks" : . , Summary[edit] Description: English: (1) Unembryonated Echinostoma eggs in the faeces of an infected host become embryonated in water (2). Larval development begins and miracidia hatch from the egg. Miracidia penetrate an intermediate snail host (3). Asexual reproduction of the parasite occurs in the snail (4). Cercariae emerge from the snail and infect a second intermediate host (5). A definitive host, such as a bird or human, consumes an infected intermediate host (6) and becomes infected. The parasite excysts in the intestine of the definitive host (7) and the adult worms mature in the small intestine (8). Source: Global Health - Division of Parasitic Diseases and Malaria, part of the Centers for Disease Control and Prevention (CDC). https://www.cdc.gov/dpdx/echinostomiasis/index.html. Author: en:Centers for Disease Control and Prevention. Permission(Reusing this file): Public domainPublic domainfalsefalse. : This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain. eesti ∙ Deutsch ∙ čeština ∙ español ∙ português ∙ English ∙ français ∙ Nederlands ∙ polski ∙ slovenščina ∙ suomi ∙ македонски ∙ українська ∙ 日本語 ∙ 中文 ∙ 中文（台灣）‎ ∙ 中文（简体）‎ ∙ 中文（繁體）‎ ∙ العربية ∙ +/− :.

Figure 11; "Image of Philopthalmus sp.; a. Drawing of cercaria structure b. Cercaria stained with 0.5% neutral red c. Redia stained with 0.5% neutral red d.–g. Images of Scanning Electronmicroscope Abbreviations: os – oral sucker, p – pharynx, ep – esophagus, vs – ventral sucker, in – intestine, eb – excretory bladder, ta – tail, ad – adhesive gland, re – redia, c – cercaria, b – body (scale a, b = 100 µm, c = 50 µm)."

Fasciola scabra

Life cycle of Echinostoma trematode flatworms, the agents causing echinostomiasis in humans Many animals may serve as definitive hosts for various Echinostoma species, including aquatic birds, carnivores, rodents, and humans (a definitive host is the host in which the adult parasites occur). Unembryonated eggs are passed in feces (1) and develop in the water (2). On average, the ciliated miracidium larva takes around 10 days to mature before hatching (3) and penetrating the first intermediate host, a snail (4). Several genera of snails may serve as the first intermediate host. The intramolluscan stages include a sporocyst (4a), one or two generations of rediae (4b), and cercariae (4c). The cercariae may encyst as metacercariae within the same first intermediate host or leave the host and penetrate a new second intermediate host (5). Depending on the species, a range of animals may serve as the second intermediate host, including other snails, bivalve mollusks, fish, and tadpoles. The definitive host becomes infected after eating a second intermediate host (6). Metacercariae excyst in the duodenum (7) and adults reside in the small intestine (8) of the definitive host.From Centers for Disease Control Parasites and Health website.

Summary[edit] Description: English: Liver flukes, trematode parasites of sheep, Fasciola hepatica, adults. Date: 10 April 2012. Source: Own work. Author: Alan R Walker.

Summary[edit] Description: English: Illustrated life cycle of parasites from the genus Echinostoma, which cause the disease echinostomiasis. Date: 27 March 2014, 10:47:18. Source: Global Health - Division of Parasitic Diseases and Malaria, part of the Centers for Disease Control and Prevention (CDC). https://www.cdc.gov/dpdx/echinostomiasis/index.html. Author: Centers for Disease Control and Prevention. Permission(Reusing this file): Public domainPublic domainfalsefalse. : This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain. eesti ∙ Deutsch ∙ čeština ∙ español ∙ português ∙ English ∙ français ∙ Nederlands ∙ polski ∙ slovenščina ∙ suomi ∙ македонски ∙ українська ∙ 日本語 ∙ 中文 ∙ 中文（台灣）‎ ∙ 中文（简体）‎ ∙ 中文（繁體）‎ ∙ العربية ∙ +/− :.

Description: Čeština: Dospělec Fasciola hepatica. English: Adult of Fasciola hepatica. Date: 5.6.2005. Source: Own work. Author: Flukeman. Permission (Reusing this file): I, Flukeman, the copyright holder of this work, hereby publishes it under the following licenses: : Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue. : This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.:. Attribution: I, Flukeman. This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC-BY-SA-3.0Creative Commons Attribution-Share Alike 3.0truetrue. : This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic license.:. Attribution: I, Flukeman. https://creativecommons.org/licenses/by-sa/2.5-2.0-1.0 CC BY-SA 2.5-2.0-1.0 Creative Commons Attribution-Share Alike 2.5-2.0-1.0 truetrue. You may select the license of your choice..

Summary[edit] Description: English: Fasciola hepatica wm. Date: 30 September 2020. Source: Own work. Author: The Other 95%.

Fasciola longicollis

Summary[edit] Description: English: Fasciola hepatica wm anterior. Date: 30 September 2020. Source: Own work. Author: The Other 95%.

Summary[edit] Description: Français : Douve. Date: between 1907 and 1910 date QS:P,+1950-00-00T00:00:00Z/7,P1319,+1907-00-00T00:00:00Z/9,P1326,+1910-00-00T00:00:00Z/9. Source: Le Larousse pour tous. Author: Adolphe Millot. Other versions:.

Summary[edit] Description: Español: Dos Saguaypé en un plato de Petri. Date: 16 May 2015, 10:05:23. Source: Own work. Author: Ganímedes.

Summary[edit] Description: English: Metacercaria larval stage of Fasciola liver fluke. Encysted form on vegetation at pond. Date: 10 April 2012. Source: Own work. Author: Alan R Walker.

Summary[edit] Description: Adult flukes of Fasciola hepatica in bile ducts (liver of goat). Date: 11 June 2007 (upload date). Source: Flukeman. Author: Flukeman.

布氏薑片蟲的生活史。美國疾病控制與預防中心原作，User:Droxiang改製成中文版。

Summary[edit] Description: English: Montaje de un corte longitudinal de Fasciola hepatica (Linnaeus, 1758). Date: 7 March 2013, 00:57:07. Source: derivate work of File:Fasciola hepatica (Linnaeus, 1758) 2013 000.jpg. Author: background removed, color, noise and size changesWilfredor. Other versions: original version.

Summary[edit] Description: English: Sporocyst larval stage of Fasciola liver flukes. This stage proliferates within tissue of snail intermediate host. Date: 10 April 2012. Source: Own work. Author: Alan R Walker.

Summary[edit] Description: English: Fasciola hepatica w.m with eggs. Date: 30 September 2020. Source: Own work. Author: The Other 95%.

Fasciola platessae

Falsciola hepática en Conducto Biliar. Higado de Vacuno

Summary[edit] Description: English: Cercaria larval stage of Fasciola liver fluke. Date: 10 April 2012. Source: Own work. Author: Alan R Walker.