A cross-sectional study of free-roaming dogs in a Patagonian city: Their distribution and intestinal helminths in relation to socioeconomic aspects of neighborhoods

Flores, Verónica; Viozzi, Gustavo; Rauque, Carlos; Mujica, Guillermo; Herrero, Eduardo; Ballari, Sebastián A.; Ritossa, Luciano; Miori, Gabriela; Garibotti, Gilda; Zacharias, Daniela G.; Treuque, Judith; Reissig, Elizabeth Chang; Vázquez, Gabriela; Pierangeli, Nora Beatriz; Lazzarini, Lorena Evelina

doi:10.1016/j.vprsr.2022.100747

Cited by 5 publications

(9 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although free-ranging dogs can play an important role in the epidemiology of Echinococcus sp. and other parasites in urban settings in Argentina (Flores et al, 2017;Soriano et al, 2010), we found that whether or not interviewees reported seeing free-ranging dogs at the ranch was not a significant predictor of the prevalence of these parasites.…”

Section: Discussionmentioning

confidence: 60%

Increased prevalence of canine echinococcosis a decade after the discontinuation of a governmental deworming program in Tierra del Fuego, Southern Chile

Eisenman

Uhart

Kusch³

et al. 2022

Zoonoses and Public Health

View full text Add to dashboard Cite

Hydatid disease is a neglected zoonotic parasitic disease caused by cysts of the tapeworm Echinococcus granulosus. Canids, especially domestic dogs, are definitive hosts of the parasite and are the most pragmatic targets for control programs. A governmental dog deworming campaign was established in 1979 to control hydatidosis in southern Chile, which succeeded in reducing the prevalence of canine echinococcosis in Tierra del Fuego province from 68.4% (in 1978) to 1.2% (in 2002). In 2004, however, the program was dismantled to reduce costs, and since then, no follow-up echinococcosis monitoring has been conducted. We surveyed 356 domestic dogs and interviewed owners or workers at 45 ranches in Chilean Tierra del Fuego during the summer of 2015-2016. Faecal flotation was employed to detect Taeniidae eggs, and PCR was used to test faecal samples for Echinococcus granulosus. Taeniidae eggs and Echinococcus sp. DNA were detected in the faeces of 45.4% (147/324) and 6.9% (23/331) of dogs, respectively. Infrequent dog deworming and the presence of culpeo foxes (Lycalopex culpaeus) were significant predictors of the prevalence of Echinococcus sp. DNA and Taeniidae eggs. Furthermore, the presence of introduced chilla foxes (Lycalopex griseus), the municipality, and several operational characteristics of ranches (number of sheep, frequency of sheep slaughter, number of dogs, frequency of removal of dog faeces, feeding of dogs with sheep viscera) were also predictive of the prevalence of Taeniidae eggs. Our findings reveal an ongoing risk of echinococcosis with pathogen maintenance in ranch dogs in Chilean Tierra del Fuego, and in the absence of adequate control programmes, there is a tangible risk of reemergence of hydatid disease as a public health concern.

show abstract

Section: Discussionmentioning

confidence: 60%

Increased prevalence of canine echinococcosis a decade after the discontinuation of a governmental deworming program in Tierra del Fuego, Southern Chile

Eisenman

Uhart

Kusch³

et al. 2022

Zoonoses and Public Health

View full text Add to dashboard Cite

show abstract

“…In contrast, in Cipolletti marked differences were found between strata: The highest percentage of positive feces and numbers of free-roaming dogs were registered in low-income areas, the number of free-roaming dogs varying inversely with income level. When the strata of both cities were included together in the regression model, it enabled us to establish that in our study the variables affecting the probability of finding positive feces are rainfall and income level (Table 4) but not the number of freeroaming dogs as found in other studies (Flores et al 2022). Parasite diversity and load in dogs is determined by the climate, geographical characteristics and socioeconomic conditions (Otranto et al 2017).…”

Section: Discussionmentioning

confidence: 65%

“…In the cities studied, the population of freeroaming dogs that have owners is smaller than that registered in the city of San Carlos de Bariloche (Garibotti et al 2021;Flores et al 2022). In other studies, both urban and rural, the presence of freeroaming dogs significantly increased the probability of being positive (Santos et al 2021;Flores et al 2022;Natalini et al 2020). Although the problem of free-roaming pet dogs is common in many Latin American cities (Ritossa et al 2021) and is associated with socioeconomic and cultural contexts, in the current study this variable did not have a significant effect on the probability of finding positive samples.…”

Section: Discussionmentioning

confidence: 81%

“…Other parasites such as Ascaris lumbricoides and Strongyloides stercoralis are reported occasionally in dogs although they are human parasites (Amundson Romich 2008). Over the last decade, cases of echinococcosis have been reported in urban dogs of Patagonia (Soriano et al 2010;Semenas et al 2014;Flores et al 2017Flores et al , 2022. In Argentinian Patagonia, studies on the presence of parasites in canine feces collected in urban public areas have been carried out in some cities in the provinces of Rio Negro, Neuquén, Chubut, Santa Cruz and Tierra del Fuego (Flores et al 2022;Cociancic et al 2020;Sánchez et al 2003;Soriano et al 2010;Winter et al 2018;Puricelli et al 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Over the last decade, cases of echinococcosis have been reported in urban dogs of Patagonia (Soriano et al 2010;Semenas et al 2014;Flores et al 2017Flores et al , 2022. In Argentinian Patagonia, studies on the presence of parasites in canine feces collected in urban public areas have been carried out in some cities in the provinces of Rio Negro, Neuquén, Chubut, Santa Cruz and Tierra del Fuego (Flores et al 2022;Cociancic et al 2020;Sánchez et al 2003;Soriano et al 2010;Winter et al 2018;Puricelli et al 2021). Epidemiological studies of canine parasitoses have been performed only in some cities of Chubut province (Zunino et al 2000;Sánchez et al 2003), although no comparisons were made that considered the number of free-roaming dogs and socioeconomic and environmental aspects of each city.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Canine parasitoses in north Patagonia (Argentina): comparison between different social and environmental factors

Ritossa,

Viozzi,

Lazzarini

et al. 2023

J. Helminthol.

View full text Add to dashboard Cite

In many countries, urban areas are commonly contaminated with canine feces that spread parasites, a situation related to the natural and social environment. Dogs having free access to public areas therefore constitutes a health risk. Because in Patagonia there are no records of city comparisons that consider the number of free-roaming dogs and the local environmental and socioeconomic characteristics, in this study we analyse and compare canine parasitoses in two cities of Rio Negro province, Argentina. Canine feces were collected from public areas of El Bolsón and Cipolletti cities and examined using enrichment methods, Kinyoun stain and immunoassay (Copro-Elisa). The total percentage of positive feces in El Bolsón was 68.95% and 16 parasite taxa being identified, whereas in Cipolletti the total positive feces was 41.1%, with 11 taxa. Both cities presented more helminth species than protozoans. The variables that explained the occurrence of all parasites were rainfall and socioeconomic stratum with the highest values being found in low-income areas. Soil moisture is conditioned by rainfall. This study highlights the presence of the zoonotic Echinococcus sp. in dogs in urban areas of the Rio Negro province. The occurrence of this parasite in Cipolletti is unexpected, given that this city is not considered an endemic zone for this disease, which is not included in local monitoring and control plans.

show abstract

Identifying Zoonotic Parasites in Domiciled and Non‐Domiciled Dogs (Canis lupus familiaris) Within an Urban Zone of the Eastern State of Mexico

Salcedo‐Jiménez,

Alcala‐Canto,

Segura‐Tinoco

et al. 2024

Veterinary Medicine & Sci

View full text Add to dashboard Cite

BackgroundThere are over 42 million dogs in Mexico, with a significant population living on the streets, especially in the State of Mexico. These dogs can act as carriers of zoonotic pathogens, placing children and individuals with chronic diseases or immunodeficiencies at risk.ObjectivesTo evaluate the prevalence of zoonotic parasites in feral and domestic dogs in the urban area of the eastern State of Mexico and assess their potential impact on public health.MethodsThe study was conducted from July 2022 to March 2023 in the urban area located in the eastern region of the State of Mexico. A total of 134 samples of dog faces were collected through convenience sampling, from both domiciled and non‐domiciled dogs.ResultsFifty‐one dogs were identified with Ancylostomatidae family (38.1%, 95% CI: 27.0%–52.1%), 10 with Toxocara spp. (7.5%, 95% CI: 3.6%–13.3%), 7 with Dipylidium caninum (5.5%, 95% CI: 2.1%–10.5%), 8 with Cystoisospora spp. (6.0%, 95% CI: 2.6%–11.4%), 6 with Giardia spp. (4.5%, 95% CI: 1.7‐9.5%) and 2 positive cases for Hymenolepis spp. (1.5%, 95% CI: 0.2%–5.3%) were identified.ConclusionsThis study highlights a public health concern related to non‐domiciled dogs, which can serve as carriers of zoonotic parasites. Interactions among non‐domiciled dogs, domiciled dogs and humans heighten the risk of transmission. Implementing prevention, control and awareness strategies is crucial to reduce the spread of these parasites.

show abstract

A cross-sectional study of free-roaming dogs in a Patagonian city: Their distribution and intestinal helminths in relation to socioeconomic aspects of neighborhoods

Cited by 5 publications

References 34 publications

Increased prevalence of canine echinococcosis a decade after the discontinuation of a governmental deworming program in Tierra del Fuego, Southern Chile

Increased prevalence of canine echinococcosis a decade after the discontinuation of a governmental deworming program in Tierra del Fuego, Southern Chile

Canine parasitoses in north Patagonia (Argentina): comparison between different social and environmental factors

Identifying Zoonotic Parasites in Domiciled and Non‐Domiciled Dogs (Canis lupus familiaris) Within an Urban Zone of the Eastern State of Mexico

Contact Info

Product

Resources

About