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Research Note Quantifying Spirorchiid Eggs in Splenic Histological
©2019 Institute of Parasitology, SAS, Košice DOI 10.2478/helm-2019-0020 HELMINTHOLOGIA, 56, 3: 269 – 272, 2019 Research Note Quantifying spirorchiid eggs in splenic histological samples from green turtles F. D´AZEREDO¹*, M. MEIRA-FILHO¹, T. M. WORK² 1Econserv Diagnóstico e Consultoria, Pontal do Paraná – PR, 83255-000, Brazil, *E-mail: [email protected]; 2US Geological Survey, National Wildlife Health Center, Honolulu Field Station, PO Box 50167, Honolulu, HI 96850, USA Article info Summary Received January 12, 2019 The present study proposes a new methodology for the quantifi cation of parasite eggs in animal tis- Accepted May 9, 2019 sue. Quantifi cation of parasites are important to understand epidemiology of spirorchiid infections in sea turtles, however different methodologies for quantifying Spirorchiidae eggs in turtle tissues have been used. The most representative way to quantify Spirorchiidae burdens in tissues is counting eggs / g of tissue, however, this method is very laborious. As an alternative, we propose quantifying number of Spirorchiidae eggs/ area of tissue on a microscope slide. We compared this method to number of eggs / slide, a common metric of egg burden in turtle tissues. Both methods correlated well with eggs / g with eggs/mm2 of tissue having better correlation. Keywords: Chelonia mydas; helminth; pathology Introduction as vessels of various internal organs and mesenteries. There, they copulate and oviposit, causing vasculitis, parasitic granulomas and The green turtle, Chelonia mydas, is distributed worldwide, oc- thromboses (Aguirre et al., 1998). Commonly affected tissues are curring from tropical regions to temperate zones. The green turtle the gastrointestinal tract, liver, spleen, lung and central nervous forages in coastal habitats (Hirth, 1997) and according to Seminoff system (Glazebrook & Campbell, 1981); however, Goodchild and (2004), is listed as endangered or near-threatened in portions of Dennis (1967) found that the spleen is the organ of Chrysemys its range. -
A SECOND ASSEMBLAGE of PLIOCENE INVERTEBRATE FOSSILS from LANGEBAANWEG, CAPE Are Issued in Parts at Irregular Intervals As Material Becomes Available
ANNALS OF THE SOUTH AFRICAN MUSEUM ANNALE VAN DIE SUID-AFRIKAANSE MUSEUM Volume 72 Band April 1977 April Part 10 Deel A SECOND ASSEMBLAGE OF PLIOCENE INVERTEBRATE FOSSILS FROM LANGEBAANWEG, CAPE are issued in parts at irregular intervals as material becomes available word uitgegee in dele op ongereelde tye na beskikbaarheid van stof OUT OF PRINT/UIT DRUK 1,2(1,3, 5-8), 3(1-2, 4-5,8, t.-p.i.), 5(1-3, 5, 7-9), 6(1, t.-p.i.), 7(1-4), 8, 9(1-2,7), 10(1), 11(1-2,5,7, t.-p.i.), 15(4-5),24(2),27,31(1-3),33 Price of this part/Prys van hierdie deel R2,50 Trustees of the South African Museum © Trustees van die Suid-Afrikaanse Museum 1977 Printed in South Africa by In Suid-Afrika gedruk deur The Rustica Press, Pty., Ltd., Die Rustica-pers, Edms., Bpk., Court Road, Wynberg, Cape Courtweg, Wynberg, Kaap A SECOND ASSEMBLAGE OF PLIOCENE INVERTEBRATE FOSSILS FROM LANGEBAANWEG, CAPE BRIAN KENSLEY South African Museum, Cape Town An assemblage of fossils from the Quartzose Sand Member of the Varswater Formation at Langebaanweg is described. The assemblage consists of 20 species of gasteropods, 2 species of bivalves, 1 amphineuran species, about 4 species of ostracodes, and the nucules of a species of the alga Chara (stonewort). Included amongst the molluscs is a new species of Bu/lia, to be described later by P. Nuttall of the British Museum, and a new species of the bivalve genus Cuna described here. -
TRBA 464 Biologische Arbeitsstoffe in Risikogruppen
Ausgabe Juli 2013 Technische Regeln für Einstufung von Parasiten TRBA 464 Biologische Arbeitsstoffe in Risikogruppen Die Technischen Regeln für Biologische Arbeitsstoffe (TRBA) geben den Stand der Technik, Arbeitsmedizin und Arbeitshygiene sowie sonstige gesicherte wissenschaftliche Erkenntnisse für Tätigkeiten mit biologischen Arbeitsstoffen, einschließlich deren Einstufung, wieder. Sie werden vom Ausschuss für Biologische Arbeitsstoffe ermittelt bzw. angepasst und vom Bundesministerium für Arbeit und Soziales im Gemeinsamen Ministerialblatt bekannt gegeben. Die TRBA „Einstufung von Parasiten in Risikogruppen“ konkretisiert im Rahmen des Anwendungsbereichs die Anforderungen der Biostoffverordnung. Bei Einhaltung der Technischen Regeln kann der Arbeitgeber insoweit davon ausgehen, dass die entsprechenden Anforderungen der Verordnung erfüllt sind. Die Einstufungen der biologischen Arbeitsstoffe in Risikogruppen werden nach dem Stand der Wissenschaft vorgenommen; der Arbeitgeber hat die Einstufung zu beachten. Die vorliegende Technische Regel schreibt die Technische Regel „Einstufung von Parasiten in Risikogruppen“ (Stand Oktober 2002) fort und wurde unter Federführung des Fachbereichs „Rohstoffe und chemische Industrie“ in Anwendung des Kooperationsmodells (vgl. Leitlinienpapier1 zur Neuordnung des Vorschriften- und Regelwerks im Arbeitsschutz vom 31. August 2011) erarbeitet. Inhalt 1 Anwendungsbereich 2 Allgemeines 3 Liste der Einstufungen der Parasiten 3.1 Vorbemerkungen 3.2 Einstufung der Endoparasiten von Mensch und Haustieren (einschließlich -
Helminth Parasites (Trematoda, Cestoda, Nematoda, Acanthocephala) of Herpetofauna from Southeastern Oklahoma: New Host and Geographic Records
125 Helminth Parasites (Trematoda, Cestoda, Nematoda, Acanthocephala) of Herpetofauna from Southeastern Oklahoma: New Host and Geographic Records Chris T. McAllister Science and Mathematics Division, Eastern Oklahoma State College, Idabel, OK 74745 Charles R. Bursey Department of Biology, Pennsylvania State University-Shenango, Sharon, PA 16146 Matthew B. Connior Life Sciences, Northwest Arkansas Community College, Bentonville, AR 72712 Abstract: Between May 2013 and September 2015, two amphibian and eight reptilian species/ subspecies were collected from Atoka (n = 1) and McCurtain (n = 31) counties, Oklahoma, and examined for helminth parasites. Twelve helminths, including a monogenean, six digeneans, a cestode, three nematodes and two acanthocephalans was found to be infecting these hosts. We document nine new host and three new distributional records for these helminths. Although we provide new records, additional surveys are needed for some of the 257 species of amphibians and reptiles of the state, particularly those in the western and panhandle regions who remain to be examined for helminths. ©2015 Oklahoma Academy of Science Introduction Methods In the last two decades, several papers from Between May 2013 and September 2015, our laboratories have appeared in the literature 11 Sequoyah slimy salamander (Plethodon that has helped increase our knowledge of sequoyah), nine Blanchard’s cricket frog the helminth parasites of Oklahoma’s diverse (Acris blanchardii), two eastern cooter herpetofauna (McAllister and Bursey 2004, (Pseudemys concinna concinna), two common 2007, 2012; McAllister et al. 1995, 2002, snapping turtle (Chelydra serpentina), two 2005, 2010, 2011, 2013, 2014a, b, c; Bonett Mississippi mud turtle (Kinosternon subrubrum et al. 2011). However, there still remains a hippocrepis), two western cottonmouth lack of information on helminths of some of (Agkistrodon piscivorus leucostoma), one the 257 species of amphibians and reptiles southern black racer (Coluber constrictor of the state (Sievert and Sievert 2011). -
Molecular Detection of Human Parasitic Pathogens
MOLECULAR DETECTION OF HUMAN PARASITIC PATHOGENS MOLECULAR DETECTION OF HUMAN PARASITIC PATHOGENS EDITED BY DONGYOU LIU Boca Raton London New York CRC Press is an imprint of the Taylor & Francis Group, an informa business CRC Press Taylor & Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487-2742 © 2013 by Taylor & Francis Group, LLC CRC Press is an imprint of Taylor & Francis Group, an Informa business No claim to original U.S. Government works Version Date: 20120608 International Standard Book Number-13: 978-1-4398-1243-3 (eBook - PDF) This book contains information obtained from authentic and highly regarded sources. Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity of all materials or the consequences of their use. The authors and publishers have attempted to trace the copyright holders of all material reproduced in this publication and apologize to copyright holders if permission to publish in this form has not been obtained. If any copyright material has not been acknowledged please write and let us know so we may rectify in any future reprint. Except as permitted under U.S. Copyright Law, no part of this book may be reprinted, reproduced, transmitted, or utilized in any form by any electronic, mechanical, or other means, now known or hereafter invented, including photocopying, microfilming, and recording, or in any information storage or retrieval system, without written permission from the publishers. For permission to photocopy or use material electronically from this work, please access www.copyright.com (http://www.copyright.com/) or contact the Copyright Clearance Center, Inc. -
Chelonia Mydas) in Hawaii
J. Parasitol., 91(4), 2005, pp. 871±876 q American Society of Parasitologists 2005 EPIZOOTIOLOGY OF SPIRORCHIID INFECTION IN GREEN TURTLES (CHELONIA MYDAS) IN HAWAII Thierry M. Work, George H. Balazs*, Jody L. Schumacher, and Amarisa Marie² U.S. Geological Survey, National Wildlife Health Center, Hawaii Field Station, 300 Ala Moana Blvd., Room 5-231, Honolulu, Hawaii 96850. e-mail: [email protected] ABSTRACT: We describe the epizootiology of spirorchiid trematode infections in Hawaiian green turtles (Chelonia mydas)by quantifying tissue egg burdens in turtles submitted for necropsy and by assessing antibody response to crude adult worm and egg antigens among a variety of age groups. Hapalotrema sp. and Laeredius sp. predominated in turtles infected with spirorchiids. Tissue egg burdens decreased with increasing size and increased with deteriorating body condition of turtles. No relationship was found between tissue egg burdens and sex or ®bropapillomatosis status. Tissue egg burdens increased in turtles from southeast to northwest in the main Hawaiian Islands (Hawaii to Kauai). Hatchling and captive-reared turtles had signi®cantly lower levels of antibodies against crude worm and egg antigens. Based on tissue egg burdens and antibody status, we hypothesize that immature turtles become infected with spirorchiids shortly after recruiting into coastal foraging pastures from the pelagic envi- ronment, that infection levels decrease with age, and that spirorchiids detrimentally affect the body condition of sea turtles independent of tumor burden. The low intensity of infection in turtles with the endemic trematode Carettacola hawaiiensis suggests either that turtles are less susceptible to infection with this parasite or that the parasite is outcompeted by species of Hapalotrema and Laeredius. -
REVEALING BIOTIC DIVERSITY: HOW DO COMPLEX ENVIRONMENTS INFLUENCE HUMAN SCHISTOSOMIASIS in a HYPERENDEMIC AREA Martina R
University of New Mexico UNM Digital Repository Biology ETDs Electronic Theses and Dissertations Spring 5-9-2018 REVEALING BIOTIC DIVERSITY: HOW DO COMPLEX ENVIRONMENTS INFLUENCE HUMAN SCHISTOSOMIASIS IN A HYPERENDEMIC AREA Martina R. Laidemitt Follow this and additional works at: https://digitalrepository.unm.edu/biol_etds Recommended Citation Laidemitt, Martina R.. "REVEALING BIOTIC DIVERSITY: HOW DO COMPLEX ENVIRONMENTS INFLUENCE HUMAN SCHISTOSOMIASIS IN A HYPERENDEMIC AREA." (2018). https://digitalrepository.unm.edu/biol_etds/279 This Dissertation is brought to you for free and open access by the Electronic Theses and Dissertations at UNM Digital Repository. It has been accepted for inclusion in Biology ETDs by an authorized administrator of UNM Digital Repository. For more information, please contact [email protected]. Martina Rose Laidemitt Candidate Department of Biology Department This dissertation is approved, and it is acceptable in quality and form for publication: Approved by the Dissertation Committee: Dr. Eric S. Loker, Chairperson Dr. Jennifer A. Rudgers Dr. Stephen A. Stricker Dr. Michelle L. Steinauer Dr. William E. Secor i REVEALING BIOTIC DIVERSITY: HOW DO COMPLEX ENVIRONMENTS INFLUENCE HUMAN SCHISTOSOMIASIS IN A HYPERENDEMIC AREA By Martina R. Laidemitt B.S. Biology, University of Wisconsin- La Crosse, 2011 DISSERT ATION Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Biology The University of New Mexico Albuquerque, New Mexico July 2018 ii ACKNOWLEDGEMENTS I thank my major advisor, Dr. Eric Samuel Loker who has provided me unlimited support over the past six years. His knowledge and pursuit of parasitology is something I will always admire. I would like to thank my coauthors for all their support and hard work, particularly Dr. -
Caretta Caretta) from Brazil
©2021 Institute of Parasitology, SAS, Košice DOI 10.2478/helm-2021-0023 HELMINTHOLOGIA, 58, 2: 217 – 224, 2021 Research Note Some digenetic trematodes found in a loggerhead sea turtle (Caretta caretta) from Brazil B. CAVACO¹, L. M. MADEIRA DE CARVALHO¹, M. R. WERNECK²* ¹Interdisciplinary Animal Health Research Centre (CIISA), Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisboa, Portugal; ²*BW Veterinary Consulting. Rua Profa. Sueli Brasil Flores n.88, Praia Seca, Araruama, RJ 28970-000(CEP), Brazil, E-mail: [email protected] Article info Summary Received December 28, 2020 This paper reports three recovered species of digeneans from an adult loggerhead sea turtle - Caret- Accepted February 8, 2021 ta caretta (Testudines, Cheloniidae) in Brazil. These trematodes include Diaschistorchis pandus (Pronocephalidae), Cymatocarpus solearis (Brachycoeliidae) and Rhytidodes gelatinosus (Rhytido- didae) The fi rst two represent new geographic records. A list of helminths reported from the Neotrop- ical region, Gulf of Mexico and USA (Florida) is presented. Keywords: Caretta caretta; loggerhead turtle; trematodes; Brazil Introduction Material and Methods During the last century sea turtle populations worldwide have been In March 22, 2014 an adult female loggerhead sea turtle measur- declining mostly due to human activities, but also due to natural ing 97.9 cm in curved carapace length was found in the Camburi dangers, such as predation and infections caused by several beach (20° 16’ 0.120” S, 40° 16’ 59.880” W), municipality of Vitória pathogens, like parasites. According to the International Union for in the state of Espírito Santo, Brazil. The turtle was found dead on Conservation of Nature, the loggerhead turtle is considered a vul- the beach during a monitoring expedition and it was frozen. -
Global Prevalence Status of Avian Schistosomes: a Systematic Review with Meta-Analysis
Parasite Epidemiology and Control 9 (2020) e00142 Contents lists available at ScienceDirect Parasite Epidemiology and Control journal homepage: www.elsevier.com/locate/parepi Global prevalence status of avian schistosomes: A systematic review with meta-analysis Elham Kia Lashaki a, Saeed Hosseini Teshnizi b, Shirzad Gholami c, Mahdi Fakhar c,⁎, Sara V. Brant d, Samira Dodangeh c a Molecular and Cell Biology Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran b Infectious and Tropical Diseases Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran c Toxoplasmosis Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran d Museum of Southwestern Biology Division of Parasites, Department of Biology, University of New Mexico, Albuquerque, USA article info abstract Article history: Objectives: Human cercarial dermatitis (HCD) is a water-borne zoonotic parasitic disease. Cer- Received 21 July 2019 cariae of the avian schistosomes of several genera are frequently recognized as the causative Received in revised form 15 February 2020 agent of HCD. Various studies have been performed regarding prevalence of bird schistosomes Accepted 16 February 2020 in different regions of the world. So far, no study has gathered and analyzed this data system- atically. The aim of this systematic review and meta-analysis study was to determine the prev- alence of avian schistosomes worldwide. Keywords: Human cercarial dermatitis Methods: Data were extracted from six available databases for studies published from 1937 to Avian schistosomes 2017. Generally, 41 studies fulfilled the inclusion criteria and were used for data extraction in Prevalence this systematic review. -
Parasitology Volume 60 60
Advances in Parasitology Volume 60 60 Cover illustration: Echinobothrium elegans from the blue-spotted ribbontail ray (Taeniura lymma) in Australia, a 'classical' hypothesis of tapeworm evolution proposed 2005 by Prof. Emeritus L. Euzet in 1959, and the molecular sequence data that now represent the basis of contemporary phylogenetic investigation. The emergence of molecular systematics at the end of the twentieth century provided a new class of data with which to revisit hypotheses based on interpretations of morphology and life ADVANCES IN history. The result has been a mixture of corroboration, upheaval and considerable insight into the correspondence between genetic divergence and taxonomic circumscription. PARASITOLOGY ADVANCES IN ADVANCES Complete list of Contents: Sulfur-Containing Amino Acid Metabolism in Parasitic Protozoa T. Nozaki, V. Ali and M. Tokoro The Use and Implications of Ribosomal DNA Sequencing for the Discrimination of Digenean Species M. J. Nolan and T. H. Cribb Advances and Trends in the Molecular Systematics of the Parasitic Platyhelminthes P P. D. Olson and V. V. Tkach ARASITOLOGY Wolbachia Bacterial Endosymbionts of Filarial Nematodes M. J. Taylor, C. Bandi and A. Hoerauf The Biology of Avian Eimeria with an Emphasis on Their Control by Vaccination M. W. Shirley, A. L. Smith and F. M. Tomley 60 Edited by elsevier.com J.R. BAKER R. MULLER D. ROLLINSON Advances and Trends in the Molecular Systematics of the Parasitic Platyhelminthes Peter D. Olson1 and Vasyl V. Tkach2 1Division of Parasitology, Department of Zoology, The Natural History Museum, Cromwell Road, London SW7 5BD, UK 2Department of Biology, University of North Dakota, Grand Forks, North Dakota, 58202-9019, USA Abstract ...................................166 1. -
Trematodes and Neorickettsia: Diversity of Digeneans and Their Bacterial Endosymbionts (Neorickettsia) in Mollusk First Intermediate Hosts from Eastern Mongolia
Georgia Southern University Digital Commons@Georgia Southern University Honors Program Theses 2018 Trematodes and Neorickettsia: diversity of Digeneans and their bacterial endosymbionts (Neorickettsia) in mollusk first intermediate hosts from eastern Mongolia Morgan Gallahue Georgia Southern University Follow this and additional works at: https://digitalcommons.georgiasouthern.edu/honors-theses Part of the Biology Commons Recommended Citation Gallahue, Morgan, "Trematodes and Neorickettsia: diversity of Digeneans and their bacterial endosymbionts (Neorickettsia) in mollusk first intermediate hosts from eastern Mongolia" (2018). University Honors Program Theses. 460. https://digitalcommons.georgiasouthern.edu/honors-theses/460 This thesis (open access) is brought to you for free and open access by Digital Commons@Georgia Southern. It has been accepted for inclusion in University Honors Program Theses by an authorized administrator of Digital Commons@Georgia Southern. For more information, please contact [email protected]. Trematodes and Neorickettsia : diversity of Digeneans and their bacterial endosymbionts ( Neorickettsia ) in mollusk first intermediate hosts from eastern Mongolia An Honors Thesis submitted in partial fulfillment of the requirements for Honors in the Department of Biology. By Morgan Gallahue Under the mentorship of Dr. Stephen Greiman ABSTRACT This study focused on the survey of 34 freshwater snail samples collected from NE Mongolia for larval flatworm parasites in the class Trematoda. 32 of the snail samples were infected, and the parasites were identified based on morphology and DNA sequences. Nine of the identified parasite samples were screened for the presence of bacterial endosymbionts in the genus Neorickettsia in the family Anaplasmataceae. All of the samples screened for Neorickettsia were negative for the bacterium. Species of Neorickettsia are known to cause several diseases such as Sennetsu Fever (in humans) and Potomac Horse Fever. -
Liver Fluke in Alpacas
Liver fluke in alpacas Jane Vaughan BVSc PhD MACVSc Background Western Australia is free of liver fluke and actively Liver fluke is the common name of the trematode, manages its fluke-free status using a system of Fasciola hepatica. The parasite is found worldwide drenching and liver fluke egg testing of faeces of and is the only liver fluke found in Australia. stock being shipped westward (see Infection can lead to reduced productivity and death www.agric.wa.gov.au for more information). and costs millions of dollars each year in lost production (meat, wool, milk, liver condemnation, secondary infection, replacement stock requirements), stock deaths and costs of treatment and prevention. The fluke mainly affects cattle and sheep, but can also affect alpacas, goats, horses, pigs, kangaroos, wombats, rabbits and deer. Humans may also be infected, for example after eating watercress collected from fluke-infested creeks or following use of contaminated water on vegetable gardens. The adult fluke is a pale brown or grayish-brown flat worm about 1.5-4 cm long that lives in the bile ducts of the liver (Figure 1). Figure 2. Distribution of liver fluke disease in different climatic regions (Boray 2007). Lifecycle The liver fluke requires two hosts: the definitive host, or alpaca, and the intermediate host, or lymnaeid snail, to complete its lifecycle (Figure 3). Adult liver fluke live in the bile ducts of the host species, such Figure 1. Adult liver fluke (15-40 mm long) (http://www.britannica.com/EBchecked/media/5519/Liver- as the alpaca. The flukes produce eggs, which pass fluke).