Helminths parasites of stray dogs (Canis lupus familiaris) from Cuiabá, Midwestern of Brazil

Ramos, Dirceu Guilherme de Souza; Zocco, Bruna Karina Alexandria; Torres, Mariana de Medeiros; Braga, Ísis Assis; Pacheco, Richard C.; Sinkoc, Afonso Lodovico

doi:10.5433/1679-0359.2015v36n2p889

Cited by 12 publications

(18 citation statements)

References 8 publications

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“…However, it is also a zoonotic pathogen of certain danger to human health (Hall & Sonnenberg, 1956;Singh et al, 1993;Mohd-Shaharuddin et al, 2019). This species is also common in the domestic dog (Canis lupus familiaris) in most of the world (Ramos et al, 2015;Scaramozzino et al, 2018;Opazo et al, 2019). Thus, human infection with T. vulpis is a matter of considerable importance since dogs are not only domestic pets but helpers of humans (Kenney & Eveland, 1978;Kenney & Yermakov, 1980;Dunn et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…This species is common in domestic dog (Canis lupus familiaris Linnaeus, 1758) populations. For example, 43% of examined dogs in Brazil were infected with T. vulpis, the abundance index was 10.03, with intensity of infection ranging 1 to 181 nematode specimens (Ramos et al, 2015). In various regions of Italy, prevalence of this nematode species in dogs ranged 5.8% to 11.1% (Zanzani et al, 2014;Scaramozzino et al, 2018).…”

Section: Introductionmentioning

confidence: 98%

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Morphobiological analysis of Trichuris vulpis (Nematoda, Trichuridae), obtained from domestic dogs

Євстаф’єва

Кравченко

Gutyj

et al. 2019

Regul. Mech. Biosyst.

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The parasitic nematode Trichuris vulpis Frölich, 1789 is the pathogen of trichuriasis in domestic and wild carnivores, and humans. This helminth species is distributed world-wide in populations of domestic dog (Canis lupus familiaris). The prevalence of T. vulpis in dogs depends to a large degree on the morphofunctional and biological adaptations of the parasite which support its high survivability in various environmental conditions. The present study considers the species-specific peculiarities of morphology, and metric parameters of the mature and embryonic stages of Trichuris nematodes parasitizing in C. lupus familiaris. We studied the periods of stages of development and infectious egg formation, and their survivability under optimal conditions for T. vulpis in laboratory culture. The differential characteristics of both female and male adult T. vulpis nematodes include the metric characteristics of cuticular protrusions at the surface of the anterior body part. The male T. vulpis nematodes can be distinguished from males of other species by the specifics of spicule sheath ornamentation, the shape and size of spicule, and the width of spicule sheath at different sections. In identification of the female nematodes of this species, it is necessary to consider the presence and size of papillary processes in the vulval area and metric parameters of vulva location. Nine metric characters of sexual dimorphism are described for T. vulpis nematodes. In laboratory conditions, five embryonic stages were observed for T. vulpis: protoplast, blastomere cleavage, and formation of bean-like embryo, larva and mobile larva. These stages are characterized by specific morphological features. The egg develops to the infectious stage at 27 °С in 18 days of culture, and their survivability is up to 76.6%. The egg development is associated with changes in their metric characters, such as decreasing egg length and width of egg shell, and increasing egg width and egg plug width.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Morphobiological analysis of Trichuris vulpis (Nematoda, Trichuridae), obtained from domestic dogs

Євстаф’єва

Кравченко

Gutyj

et al. 2019

Regul. Mech. Biosyst.

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“…From a total of 271 examined dogs, only four (1·47%) were found to be positive for A. caninum, while several studies including those from northwestern Tunisia and other parts of the world, have shown A. caninum to be the most widespread of all hookworms (Lahmar et al 2001;Bajalan, 2010;Mateus et al 2014;Emamapour et al 2015;Ramos et al 2015;Ilić et al 2017;Pumidonming et al 2017). Few cases of presumed human infection with T. vulpis causing visceral larva migrans syndrome and/or intestinal infections have been reported (Díaz-Anaya et al 2015;Ilić et al 2017).…”

Section: Discussionmentioning

confidence: 99%

“…The role of dogs in the spread of diseases that pose a potential risk to public health has been reported by many authors (Bentounsi et al 2009;Jenkins et al 2014;Ramos et al 2015;Amissah-Reynolds et al 2016;Geraili et al 2016;Ilić et al 2017;Dakkak et al 2017). Dogs are known definitive hosts of several helminths and as such contaminate the environment with infective and/or parasitic stages that undergo maturation in the soil.…”

Section: Introductionmentioning

confidence: 99%

Intestinal helminths of stray dogs from Tunisia with special reference to zoonotic infections

Lahmar¹,

Arfa²,

Othmen³

et al. 2017

Parasitology Open

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Sixteen intestinal helminth species were recovered from 271 necropsied stray dogs during a survey undertaken in Raoued and Soukra, two northeastern rural regions of Tunisia. Recorded parasites included trematodes (Brachylaemus sp., Phagicola italica, Heterophyes heterophyes), cestodes (Echinococcus granulosus, Dipylidium caninum, Diplopylidium noelleri, Mesocestoides lineatus, Mesocestoides litteratus, Taenia hydatigena, Taenia pisiformis, Taenia multiceps), nematodes (Toxocara canis, Ancylostoma caninum, Uncinaria stenocephala, Trichuris vulpis) and one acanthocephalan Macracanthorhynchus hirudinaceus. This is the first record of Brachylaemus sp., P. italica, H. heterophyes, D. noelleri and M. hirudinaceus in dogs from Tunisia. Echinococcus granulosus was found in 5·16% of dogs with a higher intensity of infection recorded in younger animals (303 worms/infected dog). Molecular analysis confirmed E. granulosus sensu stricto as the cause of canine echinococcosis. This epidemiological study investigating the status of intestinal helminths of dogs recorded a prevalence of 98·89% and a mean intensity of 87·62 worms per infected dog and confirmed the infection of 95·14% of dogs with helminths of potential zoonotic concern. Results of this study emphasize the need to interrupt parasite transmission using preventive approaches in zoonoses control programmes mainly against cystic echinococcosis, as well as reducing transmission to other animals by regular dog dosing treatments and proper management of dog populations.

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“…Humans and felines, which may be accidental hosts, are more susceptible to infection in areas with high prevalence of the canine disease (Garcez et al 2006, Mirahmadi et al 2017, which is distributed all over the globe (Bolio-Gonzalez et al 2007, Bowman & Atkins 2009, Hou et al 2011, Simsek et al 2011, Montoya-Alonso et al 2015, Bendas et al 2017. It has been found in every geographical region of Brazil, with prevalence rates over the last decade ranging from 2.1% in Florianópolis, in the Southern state of Santa Catarina (SC), to 62.2% in Armação de Búzios, in the Southeastern state of Rio de Janeiro (RJ) (Silva et al 2008, Dirofilaria immitis infection in dogs in Algodoal Island, Brazilian Amazon Furtado et al 2009, Ogawa et al 2013, Labarthe et al 2014, Soares et al 2014, Ramos et al 2015.…”

Section: Introductionmentioning

confidence: 99%

Dirofilaria immitis infection in dogs in Algodoal Island, Brazilian Amazon

et al. 2019

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Dirofilaria immitis, a parasite that mainly infects domestic or wild canids, but can infect felines or humans as well, is frequent in many Brazilian areas. The main objective of this research was to determine the prevalence of natural canine infection at the Algodoal-Maiandeua Island complex, in the coastal region of the state of Pará, Brazil. A total of 67 dogs were sampled for blood microfilariae detection and for D. immitis DNA detection. Microfilaria and D. immitis DNA could be detected in 35.8% (24/67) of the animals. In one dog’s sample no microfilariae were detected, but the PCR was positive, suggesting that either larvae recently were eliminated or adults died shortly before sample collecting. Therefore, it can be concluded that the occurrence of D. immitis is a health threat for domestic and wild canids at the Island of Algodoal, as well as for feline or human health.

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Helminths parasites of stray dogs (Canis lupus familiaris) from Cuiabá, Midwestern of Brazil

Cited by 12 publications

References 8 publications

Morphobiological analysis of Trichuris vulpis (Nematoda, Trichuridae), obtained from domestic dogs

Morphobiological analysis of Trichuris vulpis (Nematoda, Trichuridae), obtained from domestic dogs

Intestinal helminths of stray dogs from Tunisia with special reference to zoonotic infections

Dirofilaria immitis infection in dogs in Algodoal Island, Brazilian Amazon

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