Peer-reviewed veterinary case report
Gastrointestinal parasites found in dogs in São Paulo Brazil
By Ferreira, Juliana Isabel Giuli da Silva et al.·Published in Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria·2016·Departamento de Medicina Veteriná·View original on PubMed →
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Original publication title: Occurrences of gastrointestinal parasites in fecal samples from domestic dogs in São Paulo, SP, Brazil.
- Species:
- dog
Plain-English summary
A study of 3,099 dogs in São Paulo found that about 20.5% had gastrointestinal parasites, with the most common being Ancylostoma (hookworms) and Giardia (a protozoan). Dogs over one year old, especially mixed breeds and males that hadn't received deworming treatment, were more likely to have Ancylostoma. Younger dogs were more often infected with Giardia and other parasites. Fortunately, the overall incidence of these parasites has decreased over time. Regular deworming and monitoring can help keep your dog healthy and free from these infections.
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Abstract
Occurrences of gastrointestinal parasites were assessed in fecal samples from 3,099 dogs in the metropolitan region of São Paulo, SP, that were treated at the Veterinary Hospital of the University of São Paulo Veterinary School. The samples were analyzed using the flotation and centrifugal sedimentation methods. The results were compared with those from previous studies (at different times). The frequency of each parasite was correlated with the dogs' ages, breeds and gender, as well as the occurrences of diarrhea and the use of anthelmintics, by means of the chi-square or Fisher exact test. Partitioned chi-square tests were used to compare occurrences of each parasite and the times analyzed. Out of the total number of samples, 20.5% were positive and 16.1% (102/635) of these presented more than one genus of parasites. Ancylostoma spp. (7.1%) and Giardia spp. (5.5%) were the most frequent helminths and protozoa, respectively. Ancylostoma spp. was associated (p<0.05) with age (over one year), mixed breeds, sex (male) and no use of anthelmintics. Dogs under one year and mixed breeds were associated with occurrences of Toxocara canis; and younger dogs with Giardia spp., Cryptosporidium spp. and Cystoisospora spp. Giardia spp. were also associated with dogs with a defined breed (p<0.05). All the parasites analyzed presented lower incidence in the last period analyzed than in the previous periods.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/27925072/