Multilocus genotyping and risk factor analysis of Giardia duodenalis in dogs in Korea.

This study analyzed Giardia infections, implementing multilocus genotyping, including the 18S rRNA, gdh, and β-giardin genes, in sheltered, companion, and special-purpose dogs throughout Korea. Of 640 dog stool samples, 99 (15.5%) were G. duodenalis-positive; this prevalence was similar to that previously reported in Korean calves. In addition, the prevalence was significantly higher in the southern region, and lower in non-sheltered dogs, older dogs, and in the autumn season. Phylogenetic analysis revealed that all G. duodenalis-positive samples belonged to assemblages C and D. Although no G. duodenalis assemblages A and B (mainly found in humans) were identified in this study, assemblage C was detected in the main types of dogs in contact with humans. Assemblage C, thought to be dog-specific, was recently identified in humans. As Giardia (including zoonotic assemblages) is distributed throughout Korea, dog living environments and the potential for dog-human transmission should be monitored. PMID: 31356789 [PubMed - as supplied by publisher]
Source: Acta Tropica - Category: Infectious Diseases Authors: Tags: Acta Trop Source Type: research

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Publication date: Available online 16 January 2020Source: International Journal for Parasitology: Parasites and WildlifeAuthor(s): Francesca Coppola, Michela Maestrini, Federica Berrilli, Isabel Guadano Procesi, Antonio Felicioli, Stefania PerrucciAbstractItaly is the only European country where the crested porcupine (Hystrix cristata) lives. A parasitological investigation was performed on faecal samples, aimed to evaluate Giardia and other parasites in a free-ranging crested porcupine population in Central Italy. Samples were collected from captured and road-killed individuals as well as from feeding areas and pathways. ...
Source: International Journal for Parasitology: Parasites and Wildlife - Category: Parasitology Source Type: research
Publication date: Available online 23 December 2019Source: Preventive Veterinary MedicineAuthor(s): Benedetto Morandi, Spencer J. Greenwood, Gary A. Conboy, Roberta Galuppi, Giovanni Poglayen, John A. VanLeeuwenAbstractAlthough many studies on the frequency of endoparasites in dogs and cats in Canada have been reported, seasonal and/or annual patterns are often not evaluated. The frequency and risk factors of endoparasite infections from fecal samples of cats and dogs submitted to the Veterinary Teaching Hospital of the Atlantic Veterinary College, University of Prince Edward Island-Canada were determined, using univariabl...
Source: Preventive Veterinary Medicine - Category: Veterinary Research Source Type: research
AbstractGiardia is a zoonotic gastrointestinal parasite responsible for a substantial global public health burden, and quantitative microbial risk assessment (QMRA) is often used to forecast and manage this burden. QMRA requires dose –response models to extrapolate available dose–response data, but the existing model forGiardia ignores valuable dose –response information, particularly data from several well‐documented waterborne outbreaks of giardiasis. The current study updatesGiardia dose –response modeling by synthesizing all available data from outbreaks and experimental studies using a Bayesi...
Source: Risk Analysis - Category: International Medicine & Public Health Authors: Tags: Original Research Article Source Type: research
a IM, Müller N, Robertson LJ Abstract Giardia duodenalis is one of the most important intestinal parasites globally, especially in children, and in Cuba is the leading cause of chronic paediatric diarrhoea in this population. G. duodenalis is composed of eight genetic groups (or assemblages), two of which (A and B) are apparently zoonotic, occurring in both humans and other animals. However, consensus on the most appropriate genotyping scheme for optimal characterization of G. duodenalis isolates is lacking. In this article we present the results of three descriptive observational studies conducted in Havana,...
Source: Experimental Parasitology - Category: Parasitology Authors: Tags: Exp Parasitol Source Type: research
Authors: Ma DW, Lee MR, Hong SH, Cho SH, Lee SE Abstract Cryptosporidium parvum and Giardia duodenalis are the main diarrhea-causing parasitic pathogens; however, their prevalence in Korea is unknown. Here, we conducted a survey to determine the prevalence and genotype distribution of these 2 pathogens causing acute diarrhea in 8,571 patients hospitalized in 17 Regional Institute of Health Environment sites in Korea, during 2013-2016. C. parvum and G. duodenalis were detected and genotyped by nested PCR, and the isolate were molecularly characterized by sequencing the glycoprotein 60 (Gp60) and β-giardin genes...
Source: Korean Journal of Parasitology - Category: Parasitology Tags: Korean J Parasitol Source Type: research
Abstract Giardia duodenalis is a cosmopolitan zoonotic protozoan parasite causing giardiasis, one of the most common diarrhoeal diseases in human and animals. Beyond its public health relevance, Giardia represents a valuable and fascinating model microorganism. The deep-branching phylogenetic position of Giardia, its simple life cycle and its minimalistic genomic and cellular organization provide a unique opportunity to define basal and "ancestral" eukaryotic functions. The eukaryotic 14-3-3 protein family represents a distinct example of phosphoserine/phosphothreonine-binding proteins. The extended netw...
Source: Advances in Parasitology - Category: Parasitology Authors: Tags: Adv Parasitol Source Type: research
AbstractGiardia intestinalis andBlastocystis spp. are two common zoonotic intestinal parasites responsible for the majority of diarrheic cases, especially in children. The study was planned to determine the impact role of bothGiardia andBlastocystis co-infection in children up to 12  years old with acute diarrhea in Beni-Suef, Egypt. Also, to estimate the general prevalence rates and risk factors associated with intestinal parasitic infections. Stool samples collected from 125 children, within a period of 7 months, were examined using direct wet mount and trichrome stain in c omparison to in vitro culture on Jone...
Source: Journal of Parasitic Diseases - Category: Parasitology Source Type: research
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Source: Infection, Genetics and Evolution - Category: Genetics & Stem Cells Authors: Tags: Infect Genet Evol Source Type: research
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Source: EcoHealth - Category: Environmental Health Source Type: research
Wow - we received so many excellent comments on how parasites and the number 5 go together! Here are many of them - in no particular order - for your viewing pleasure:Pentatrichomonas hominis is a nonpathogenic intestinal flagellate named for its 5 flagella (penta from the Greek pente, meaning five + trich, pertaining to hair [flagella]). By Neil Anderson and Bernardino Rocha.There are 5 lobes of the lung, and all can be infected by Paragonimusspecies. By Brian Duresko.The are 5Plasmodiumspecies that are responsible for the bulk of malaria in humans:P. falciparum, P. vivax, P. ovale, P. malariae, andP. knowlesi(t...
Source: Creepy Dreadful Wonderful Parasites - Category: Parasitology Source Type: blogs
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