Prevalence of Giardia duodenalis genetic assemblages isolated from dogs and cats in Poland
Dawid Jańczak
Department of Infectious and Invasive Diseases and Veterinary Administration, Institute of Veterinary Medicine, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus UniversityToruń, Poland
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, , Aleksandra Kornelia Maj
Animallab Veterinary LaboratoryWarsaw, Poland
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, , Magdalena Nowak
Department of Food Hygiene and Public Health Protection, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGWWarsaw, Poland
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and Olga Szaluś-Jordanow
Department of Small Animal Diseases with Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGWWarsaw, Poland
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Aug 28, 2025
About this article
Published Online: Aug 28, 2025
Received: Jan 14, 2025
Accepted: Jul 28, 2025
DOI: https://doi.org/10.2478/jvetres-2025-0043
Keywords
© 2025 Dawid Jańczak et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
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Prevalence of Giardia duodenalis gene assemblages in dogs and cats by age group
| Dogs (n =1,937) | Cats (n =1,077) | |||
|---|---|---|---|---|
| Age group | <1y | >1y | <1y | >1y |
| Number of animals (n) | 491 | 1,446 | 217 | 860 |
| Giardia-positive (%) | 71 (14.5) | 148 (10.2) | 43 (19.8) | 33 (3.8) |
| Assemblages | ||||
| A | 0 | 0 | 0 | 0 |
| B | 11 | 0 | 0 | 0 |
| C | 19 | 58 | 0 | 0 |
| D | 41 | 85 | 0 | 0 |
| E | 0 | 0 | 0 | 0 |
| F | 0 | 5 | 43 | 33 |
Prevalence of Giardia duodenalis in dogs and cats in different regions of Poland between 2005 and 2021
| Location in Poland | Clinical signs | Age | Origin | Detection method | Total | Positive | % | Assemblages | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Dogs | |||||||||
| Lublin | asymptomatic | nd | city & rural comp. | ELISA | 86 | 46 | 53.5 | - | ( |
| Warsaw | asymptomatic | nd | companion | IFA | 256 | 47 | 18.4 | - | ( |
| Warsaw | nd | nd | nd | microscopy | 350 | 18 | 5.1 | A–I, C, D | ( |
| Unknown | asymptomatic | > 1y | sled dogs | IFA | 108 | 31 | 28.7 | - | ( |
| West-central | nd | nd | comp. & shelter | microscopy, PCR | 148 | 3 | 2.0 | C, D | ( |
| Wrocław | symptomatic | 3m–10y | companion | POC lateral flow coproantigen ELISA, PCR | 128 | 27 | 21.1 | B, C, D | ( |
| Masovian Voivodeship and Lesser Poland Voivodeship | nd | nd | companion | microscopy | 207 | 37 | 17.8 | - | ( |
| Warsaw | mixed | >1y | shelter | microscopy, PCR | 74 | 20 | 27.0 | C, D, F | ( |
| Masovian Voivodeship | nd | 3w–16y | nd | microscopy | 3613 | 299 | 8.3 | - | ( |
| Pomeranian Voivodeship, Greater Poland Voivodeship, Lower Silesian Voivodeship, Opole Voivodship, Silesian Voivodeship, Lodz Voivodeship, Holy Cross Voivodeship, Lesser Poland Voivodeship and Subcarpathian Voivodeship | mixed | >2m–11y | companion | PCR | 217 | 13 | 6.0 | C, D | ( |
| Cats | |||||||||
| Warsaw | asymptomatic | nd | city comp. | IFA | 81 | 10 | 12.3 | - | ( |
| Warsaw | nd | nd | companion | IFA, PCR | 160 | 6 | 3.8 | A, B, D | ( |
| Wrocław | symptomatic | 3m–10y | companion | POC lateral flow coproantigen ELISA, PCR | 33 | 5 | 15.2 | A, F | ( |
| nd | mixed | >1y | companion & stray | PCR | 63 | 3 | 4.8 | F | ( |
| Warsaw | mixed | >1y | shelter | microscopy, PCR | 13 | 6 | 46.2 | D, F | ( |
| Masovian Voivodeship | nd | 3w–16y | nd | microscopy | 1612 | 93 | 5.8 | - | ( |
| Pomeranian Voivodeship, Greater Poland Voivodeship, Lower Silesian Voivodeship, Opole Voivodeship, Silesian Voivodeship, Lodz Voivodeship, Holy Cross Voivodeship, Lesser Poland Voivodeship and Subcarpathian Voivodeship | mixed | >2m–11y | companion | PCR | 76 | 3 | 3.9 | A, F | ( |