ArticleParasites & vectors2020
Giardia duodenalis multi-locus genotypes in dogs with different levels of synanthropism and clinical signs.
Article in Parasites & vectors, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Detection of zoonotic protozoa in raccoons (One health (Amsterdam, Netherlands) · 2026Article
- High prevalence of gastrointestinal parasites in dogs from Saipan, Northern Mariana Islands, including the zoonotic Ancylostoma ceylanicum.Parasites & vectors · 2026Article
- Human Giardiasis in Ghana - A Scoping Review of Studies From 2004 to 2024.Health science reports · 2025Article
- Year after year: RecurrentInternational journal for parasitology. Parasites and wildlife · 2024Article
- Prevalence ofVeterinary world · 2024Article
- The Influence ofVeterinary sciences · 2023Article
- Microscopic and molecular diagnoses ofVeterinary world · 2023Article
- The prevalence of potentially zoonotic intestinal parasites in dogs and cats in Moscow, Russia.Helminthologia · 2023Article
- Gastrointestinal parasites in young dogs and risk factors associated with infection.Parasitology research · 2023Article
- Review
- Prevalence, Risk Factors and Genotypes ofPathogens (Basel, Switzerland) · 2021Article
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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundIn dogs, infections with Giardia duodenalis are mainly caused by assemblages C and D, but also by the potentially zoonotic assemblages A and B. The aims of this study were to assess differences in assemblages (i) between dogs living mainly in close proximity to humans (synanthropic dogs) versus dogs living mainly among other dogs, (ii) between samples of dogs with or without loose stool, and (iii) related to the amount of cysts shedding.
methodsOne hundred eighty-nine qPCR Giardia positive fecal samples of dogs originating from four groups (household, sheltered, hunting, and dogs for which a veterinarian sent a fecal sample to a diagnostic laboratory) were used for genotyping. For this, multi-locus genotyping of beta-giardin, triose phosphate isomerase, and glutamate dehydrogenase and genotyping of SSU rDNA gene fragments were performed. Fecal consistency was scored (loose or non-loose stool), and cysts per gram of feces were determined with qPCR.
resultsAssemblage D was the most prevalent in all groups, followed by the other canid assemblage C. Also, mixed C/D was common. In two (synanthropic) household dogs, the potentially zoonotic assemblage AI was present. Although occurrence of assemblage AI in household dogs was not significantly different from dogs living among other dogs (sheltered and hunting dogs), it was significantly higher compared to dogs for which a sample was sent to a diagnostic laboratory. Dogs with assemblage D shed significantly more cysts than dogs with other assemblages (except for mixed C/D results) or dogs in which no assemblage could be determined. None of the assemblages was significantly associated with loose stool.
conclusionNot only do dogs mainly shed the canid Giardia duodenalis assemblages D and/or C, the numbers of cysts per gram for the canid assemblage D were also higher than for the potential zoonotic assemblage AI. Based on the assemblages shed by dogs, the risk to public health posed by dogs is estimated to be low, even though the dogs that shed AI were synanthropic household dogs. Loose stool in infected dogs was not associated with any particular Giardia assemblage.
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