keyword
https://read.qxmd.com/read/38481352/expanding-the-swimmer-s-itch-pool-of-the-benelux-a-first-record-of-the-neurotropic-trichobilharzia-regenti-and-potential-link-to-human-infection
#1
JOURNAL ARTICLE
Ruben Schols, Nathalie Smitz, Ann Vanderheyden, Tine Huyse
BACKGROUND: Swimmer's itch, an allergic contact dermatitis caused by avian and mammalian blood flukes, is a parasitic infection affecting people worldwide. In particular, avian blood flukes of the genus Trichobilharzia are infamous for their role in swimmer's itch cases. These parasites infect waterfowl as a final host, but incidental infections by cercariae in humans are frequently reported. Upon accidental infections of humans, parasite larvae will be recognized by the immune system and destroyed, leading to painful itchy skin lesions...
March 13, 2024: Parasites & Vectors
https://read.qxmd.com/read/38336344/malacological-socio-environmental-evaluation-and-evidence-of-local-transmission-and-maintenance-of-schistosomiasis-in-an-urban-area-of-northeast-brazil
#2
JOURNAL ARTICLE
Elainne Christine de Souza Gomes, Iris Edna Pereira da Silva, Hallysson Douglas Andrade de Araújo, Constança Simões Barbosa
To present the current epidemiological scenario of schistosomiasis related to urban transmission through an epidemiological risk assessment in Porto de Galinhas, a coastal area of Pernambuco, Brazil. Malacological and parasitological surveys were performed between the years 2018 and 2020. Snails were identified taxonomically and examined to confirm infection by Schistosoma mansoni, and so to identify Schistosomiasis Transmission Foci (STF) by the artificial light exposure technique. Stool samples were examined using the Kato-Katz method to identify schistosomiasis cases...
February 7, 2024: Acta Tropica
https://read.qxmd.com/read/38281969/matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry-traces-the-geographical-source-of-biomphalaria-pfeifferi-and-bulinus-forskalii-involved-in-schistosomiasis-transmission
#3
JOURNAL ARTICLE
Papa Mouhamadou Gaye, El Hadj Ibrahima Ndiaye, Souleymane Doucouré, Doudou Sow, Mapenda Gaye, Ndiaw Goumballa, Carole Cassagne, Coralie L'Ollivier, Oleg Medianikov, Cheikh Sokhna, Stéphane Ranque
BACKGROUND: Freshwater snails of the genera Bulinus spp., Biomphalaria spp., and Oncomelania spp. are the main intermediate hosts of human and animal schistosomiasis. Identification of these snails has long been based on morphological and/or genomic criteria, which have their limitations. These limitations include a lack of precision for the morphological tool and cost and time for the DNA-based approach. Recently, Matrix-Assisted Laser Desorption/Ionization Time-Of-Flight (MALDI-TOF) mass spectrometry, a new tool used which is routinely in clinical microbiology, has emerged in the field of malacology for the identification of freshwater snails...
January 29, 2024: Infectious Diseases of Poverty
https://read.qxmd.com/read/38251207/from-perpetual-wetness-to-soil-chemistry-enumerating-environmental-and-physicochemical-factors-favoring-oncomelania-hupensis-quadrasi-snail-presence-in-the-municipality-of-gonzaga-cagayan-philippines
#4
JOURNAL ARTICLE
Daria L Manalo, Jude Karlo G Bolivar, Paul Raymund Yap, Ma Ricci R Gomez, Zaldy P Saldo, Mark Joseph M Espino, Joselito E Dilig, Raffy Jay C Fornillos, Shirlyn A Perez, Regie A Baga, Louie S Sunico, Ian Kendrich C Fontanilla, Lydia R Leonardo
Snail control to complement mass drug administration is being promoted by the World Health Organization for schistosomiasis control. Oncomelania hupensis quadrasi , the snail intermediate host of Schistosoma japonicum in the Philippines, has a very focal distribution; thus, scrutinizing baseline data and parameters affecting this distribution is very crucial. In this study in Gonzaga, Cagayan, Philippines, snail habitats were surveyed, and the various factors affecting the existence of the snails were determined...
December 29, 2023: Tropical Medicine and Infectious Disease
https://read.qxmd.com/read/38225903/semperula-wallacei-mollusca-veronicellidae-um-hospedeiro-natural-rec%C3%A3-m-descoberto-de-angiostrongylus-cantonensis-nematoda-angiostrongylidae-na-bacia-do-pac%C3%A3-fico
#5
JOURNAL ARTICLE
C L F Mendonça, R L Caldeira, O S Carvalho, S D'ávila, S R Gomes
Semperula wallacei (Issel, 1874) is a species of terrestrial slug that occurs in southeast China and the Pacific Basin and is the only species of its genus that occurs beyond the Oriental region and to the east of Wallace's line in the Australian region, where it has probably been introduced. In this study, we report for the first time S. wallacei as an intermediate host for Angiostrongylus cantonensis (Chen, 1935) based on histological and molecular analyses of slugs from Tuamasaga, Samoa, deposited at the Medical Malacological Collection (Fiocruz-CMM)...
January 16, 2024: Journal of Helminthology
https://read.qxmd.com/read/38114034/the-decline-of-tufa-deposition-in-an-alkaline-fen-ecosystem-in-east-central-europe-and-its-impact-on-biotic-assemblages-insights-from-monitoring-and-paleoecological-data
#6
JOURNAL ARTICLE
Karina Apolinarska, Rafał Kiełczewski, Krzysztof Pleskot, Magdalena Marzec, Liene Aunina, Danuta Michalska, Marcin Siepak, Cyprian Kowalczyk, Mariusz Gałka
Protection and restoration of the CaCO3 depositing alkaline fens require an in-depth understanding of these unique and declining ecosystems. The present study investigates the development of the formerly heavy tufa depositing alkaline fen in East-Central Europe after CaCO3 precipitation markedly declined ca. 5400 cal yr BP. By combining palaeoecological and monitoring data, we aim to identify the limiting factors for tufa deposition and to recognise the vegetation and mollusc response to the change...
December 17, 2023: Science of the Total Environment
https://read.qxmd.com/read/37919743/an-accident-waiting-to-happen-exposing-the-potential-of-urogenital-schistosomiasis-transmission-in-the-lake-albert-region-uganda
#7
JOURNAL ARTICLE
Julius Tumusiime, Grace Kagoro-Rugunda, Casim Umba Tolo, Daisy Namirembe, Ruben Schols, Cyril Hammoud, Christian Albrecht, Tine Huyse
BACKGROUND: Urogenital schistosomiasis caused by the parasitic blood fluke Schistosoma haematobium is the most common form of that constitutes a majority of over 240 million schistosomiasis cases. The enigmatic absence of urogenital schistosomiasis in Uganda has, until now, been attributed to the absence of substantial populations of suitable snail intermediate hosts. METHODS: Malacological surveys were carried out in 73 sites southeast of Lake Albert, Uganda in October and November 2020...
November 3, 2023: Parasites & Vectors
https://read.qxmd.com/read/37900305/abundance-distribution-and-diversity-of-freshwater-snail-and-prevalences-of-their-infection-by-cercaria-of-fasciola-gigantica-and-schistosoma-spp-at-mayo-vreck-river-far-north-region-of-cameroon
#8
JOURNAL ARTICLE
Augustin Siama, Serges Eteme Enama, Justin Kalmobe, Samuel Abah, Angele Foutchou, Alexandre Michel Njan Nloga
Malacological and parasitological studies were conducted from April 2020 to March 2021 to determine the abundance and distribution of molluscs and cercariae of Schistosoma spp and Fasciola gigantica . Collected molluscs are exposed to strong light to induce cercarial release. Mollusc densities were higher at station 1 (Gamak) than in station 8 (Patakai), with Bellamya unicolor and Biomphalaria pfeifferi more abundant and Bulinus truncatus , B. tropicus , and B. globosus less abundant. The overall prevalence of cercariae (19...
2023: Journal of Tropical Medicine
https://read.qxmd.com/read/37856526/seasonal-and-environmental-dynamics-of-intra-urban-freshwater-habitats-and-their-influence-on-the-abundance-of-bulinus-snail-host-of-schistosoma-haematobium-in-the-tiko-endemic-focus-mount-cameroon-region
#9
JOURNAL ARTICLE
Godlove Bunda Wepnje, Marcell K Peters, Adeline Enjema Green, Tingmi Emparo Nkuizin, Daniel Brice Nkontcheu Kenko, Fairo F Dzekashu, Helen Kuokuo Kimbi, Judith Kuoh Anchang-Kimbi
Urogenital schistosomiasis (UGS) caused by Schistosoma haematobium is endemic in the South West Region of Cameroon. An understanding of the abundance and distribution of the Bulinus snail, intermediate host can inform strategic snail control programmes at a local scale. This study investigated seasonal dynamics and environmental factors influencing occurrence and abundance of freshwater snail intermediate hosts in Tiko, a semi-urban endemic focus in the Mount Cameroon area. A longitudinal malacological field survey was conducted between December 2019 and December 2020 in the Tiko municipality...
2023: PloS One
https://read.qxmd.com/read/37818325/species-catalogue-of-drymaeus-mesembrinus-alberts-1850-gastropoda-bulimulidae-from-brazil-and-new-data-on-morphology-and-distribution-of-drymaeus-mesembrinus-interpunctus-martens-1887
#10
JOURNAL ARTICLE
Maria Isabel Pinto Ferreira Macedo, Ximena Maria Constanza Ovando, Sthefane D'ávila
BACKGROUND: Herein, we attempted to obtain detailed data on the distribution of the species of Drymaeus ( Mesembrinus ) in Brazil, using biodiversity databases, malacological collections and literature as sources of occurrence records. We provided a catalogue of species, along with distribution maps. We also estimated the suitable distribution of Drymaeus ( Mesembrinus ) interpunctus using the maximum entropy approach. A detailed description of the anatomy of the soft parts of this species was provided, with new data on the pallial system...
2023: PeerJ
https://read.qxmd.com/read/37459286/prevalence-and-risk-factors-of-schistosomiasis-and-hookworm-infection-in-seasonal-transmission-settings-in-northern-c%C3%A3-te-d-ivoire-a-cross-sectional-study
#11
JOURNAL ARTICLE
Jules N Kouadio, Jennifer Giovanoli Evack, Jean-Baptiste K Sékré, Louise Y Achi, Mamadou Ouattara, Jan Hattendorf, Oliver Balmer, Bassirou Bonfoh, Jakob Zinsstag, Jürg Utzinger, Eliézer K N'Goran
BACKGROUND: Schistosomiasis and hookworm infection remain public health problems in large parts of sub-Saharan Africa. The epidemiology of schistosomiasis and hookworm was studied in seasonal transmission settings in the northern part of Côte d'Ivoire. METHODOLOGY: In August 2018, a cross-sectional study was conducted. Urine and stool samples were collected from 742 individuals aged 6-96 years in 16 localities from four departments in northern Côte d'Ivoire...
July 2023: PLoS Neglected Tropical Diseases
https://read.qxmd.com/read/37428698/on-liver-fluke-fasciola-hepatica-in-captive-vicu%C3%A3-as-vicugna-vicugna-at-knowsley-safari-prescot-united-kingdom
#12
JOURNAL ARTICLE
Alexandra Juhasz, Emma Chapman, Amy Martin, Lucas J Cunningham, Sam Jones, Bridget Johnson, Naomi Davies Walsh, Jen Quayle, Jonathan Cracknell, E James LaCourse, J Russell Stothard
Knowsley Safari (KS), Prescot, United Kingdom houses a variety of captive exotic ungulates. As part of their animal welfare plan, a prospective coprological survey was undertaken for liver fluke. In June 2021, 330 fecal samples, representative of 18 exotic ungulate species, were processed by sedimentation and filtration, with examination by coproscopy. Finding fascioliasis in all five vicuña alone, with fecal egg counts ranging from one to eight eggs per gram, anthelminthic treatment was attempted twice, with three coprological reviews...
July 2023: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://read.qxmd.com/read/37368713/malacological-survey-and-spatial-distribution-of-intermediate-host-snails-in-schistosomiasis-endemic-districts-of-rwanda
#13
JOURNAL ARTICLE
Joseph Kagabo, Chester Kalinda, Project Nshimiyimana, Jean Bosco Mbonigaba, Eugene Ruberanziza, Elias Nyandwi, Nadine Rujeni
BACKGROUND: Schistosomiasis, due to S. mansoni , is prevalent in Rwanda. However, there is a paucity of information related to the abundance, species, distribution, and infectivity of Schistosoma intermediate host snails. METHODS: Snails were collected from 71 sites, including lakeshores and wetlands. Snails obtained were morphologically identified, and cercariae were shed using standard procedures. Cercariae were molecularly characterized using PCR. GPS coordinates were used to generate geospatial maps of snail distribution that were overlaid with geospatial distribution of schistosomiasis among pre-school children in the same areas...
May 28, 2023: Tropical Medicine and Infectious Disease
https://read.qxmd.com/read/37234267/modelling-the-age-prevalence-relationship-in-schistosomiasis-a-secondary-data-analysis-of-school-aged-children-in-mangochi-district-lake-malawi
#14
JOURNAL ARTICLE
Amber L Reed, Angus M O'Ferrall, Sekeleghe A Kayuni, Hamish Baxter, Michelle C Stanton, J Russell Stothard, Christopher Jewell
Schistosomiasis is an aquatic snail borne parasitic disease, with intestinal schistosomiasis (IS) and urogenital schistosomiasis (UGS) caused by Schistosoma mansoni and S. haematobium infections, respectively. School-aged-children (SAC) are a known vulnerable group and can also suffer from co-infections. Along the shoreline of Lake Malawi a newly emerging outbreak of IS is occurring with increasing UGS co-infection rates. Age-prevalence (co)infection profiles are not fully understood. To shed light on these (co)infection trends by Schistosoma species and by age of child, we conducted a secondary data analysis of primary epidemiological data collected from SAC in Mangochi District, Lake Malawi, as published previously...
August 2023: Parasite Epidemiology and Control
https://read.qxmd.com/read/37188748/spatial-and-seasonal-distribution-of-human-schistosomiasis-intermediate-host-snails-and-their-interactions-with-other-freshwater-snails-in-7-districts-of-kwazulu-natal-province-south-africa
#15
JOURNAL ARTICLE
Onyekachi Esther Nwoko, Tawanda Manyangadze, Moses John Chimbari
The spatial and seasonal distribution, abundance, and infection rates of human schistosomiasis intermediate host snails and interactions with other freshwater snails, water physicochemical parameters, and climatic factors was determined in this study. A longitudinal malacology survey was conducted at seventy-nine sites in seven districts in KwaZulu-Natal province between September 2020 and August 2021. Snail sampling was done simultaneously by two trained personnel for fifteen minutes, once in three months...
May 15, 2023: Scientific Reports
https://read.qxmd.com/read/37168391/dna-barcoding-as-a-valuable-tool-for-delimiting-mollusk-species-of-the-genus-biomphalaria-preston-1910-gastropoda-planorbidae
#16
JOURNAL ARTICLE
Amanda Domingues de Araújo, Omar Dos Santos Carvalho, Sandra Grossi Gava, Roberta Lima Caldeira
INTRODUCTION: The genus Biomphalaria in Brazil includes 11 species and one subspecies, three of which are intermediate hosts of Schistosoma mansoni . Due to the recent evolution of this group, some species are difficult to identify based on morphological characters, making the use of genetic markers necessary for species identification. This study aimed to evaluate the use of partial sequences of the cytochrome c oxidase I ( coi ) gene for the identification of Biomphalaria species using phylogenetic reconstruction and species delimitation algorithms...
2023: Frontiers in Cellular and Infection Microbiology
https://read.qxmd.com/read/37025815/the-epidemiology-of-schistosoma-mansoni-in-the-lake-tana-basin-ethiopia-review-with-retrospective-data-analyses
#17
REVIEW
Bayeh Abera
Schistosoma mansoni is one of the major waterborne diseases grouped underwater based Neglected Tropical Diseases in Africa. In Ethiopia, the Lake Tana Basin has favorable environment (temperature and water) for S. mansoni transmission. The prevalence of S. mansoni varies among regions based on environmental conditions and human water contact. Therefore, this review was conducted to identify hot spots districts and determine the prevailing S. mansoni prevalence in the Lake Tana Basin. Research articles published in English in the last 65 years were searched from Google scholar, PubMed, and Web of science...
April 2023: Heliyon
https://read.qxmd.com/read/36855192/development-of-environmental-loop-mediated-isothermal-amplification-elamp-diagnostic-tool-for-bulinus-truncatus-field-detection
#18
JOURNAL ARTICLE
Manon Blin, Bruno Senghor, Jérôme Boissier, Stephen Mulero, Olivier Rey, Julien Portela
BACKGROUND: Global changes are reshaping the distribution of vector-borne diseases by spreading vectors to previously non-endemic areas. Since 2013, urogenital schistosomiasis has emerged in Corsica and threatens European countries. Gastropod vectors release schistosome larvae that can infect humans who come into contact with freshwater bodies. Monitoring schistosomiasis host vectors is a prerequisite to understand and subsequently to control this pathogen transmission. Because malacological surveys are time consuming and require special expertise, the use of a simple molecular method is desirable...
February 28, 2023: Parasites & Vectors
https://read.qxmd.com/read/36828541/-biomphalaria-pfeifferi-gastropoda-planorbidae-in-lake-malawi-and-upper-shire-river-mangochi-district-malawi-distribution-genetic-diversity-and-pre-patent-schistosome-infections
#19
JOURNAL ARTICLE
Mohammad H Alharbi, Charlotte Condemine, Josie Hesketh, Sekeleghe A Kayuni, Thomas M Arme, John Archer, Sam Jones, E James LaCourse, Peter Makaula, Janelisa Musaya, J Russell Stothard
In November 2017, Biomphalaria pfeifferi , the key intermediate host for Schistosoma mansoni in Africa, was first reported in Lake Malawi, Mangochi District. Two subsequent malacological surveys in 2018 and 2019 confirmed its lacustrine presence, as well as its presence along the Upper Shire River. These surveys provided sufficient specimens for analyses of the genetic structure and a transmission assessment for intestinal schistosomiasis. A total of 76 collected snails were characterized by a DNA sequence analysis of a 650 bp fragment of the mitochondrial cytochrome oxidase subunit 1 ( cox 1); by size fractionation of six fluorescently labelled microsatellite loci (Bgμl16, Bgμl, Bpf8, rg6, U-7, and rg9);by denaturing PAGE; and by detection of pre-patent Schistosoma infection by real-time PCR with a TaqMan® probe...
February 18, 2023: Tropical Medicine and Infectious Disease
https://read.qxmd.com/read/36824299/molecular-characterization-of-schistosome-cercariae-and-their-bulinus-snail-hosts-from-niakhar-a-seasonal-transmission-focus-in-central-senegal
#20
JOURNAL ARTICLE
Bruno Senghor, Bonnie Webster, Tom Pennance, Mariama Sène, Souleymane Doucouré, Doudou Sow, Cheikh Sokhna
Bulinus senegalensis and Bulinus umbilicatus , two sympatric freshwater snails found in temporal ponds in Senegal, were thought to be involved in the transmission of Schistosoma haematobium and/or Schistosoma curassoni . To better understand the role of these Bulinus species in the transmission of human and animal Schistosoma species, B. senegalensis and B. umbilicatus were collected in 2015, during a malacological survey, from a temporal pond in Niakhar, central Senegal. Snails were induced to shed cercariae on two consecutive days...
2023: Curr Res Parasitol Vector Borne Dis
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