The investigation of Toxocara canis eggs in coats of different dog breeds as a potential transmission route in human toxocariasis

Aydenizöz-Özkayhan, M.; Yağci, Buğrahan Bekir; Erat, Serkan

doi:10.1016/j.vetpar.2007.12.002

Cited by 63 publications

(49 citation statements)

References 22 publications

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“…Other studies found prevalence between 21.56% and 95% of dogs with eggs in their fur. [51][52][53] The seroconversion rate obtained here is slightly higher than those described in non-Amazonian areas of Brazil (7.63%) 17 ; the seroprevalence of anti-Toxocara antibodies increased during childhood in Assis Brasil but not the seroconversion rates. In other words, no influence of behavioral or biological features that can explain the rise in seroprevalence according to age could be shown in this study, only a cumulative effect of exposure.…”

Section: Discussioncontrasting

confidence: 67%

Epidemiology and Control of Child Toxocariasis in the Western Brazilian Amazon – A Population-Based Study

Oliart-Guzmán¹,

Delfino²,

Martins³

et al. 2014

The American Society of Tropical Medicine and Hygiene

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Abstract. Toxocara spp. infection and the seroconversion rate in the Amazon have been poorly investigated. This study analyzed individual and household-level risk factors for the presence of IgG antibodies to Toxocara spp. in urban Amazonian children over a period of 7 years and evaluated the seroconversion rates over a 1-year follow-up. In children 59 months of age, the overall prevalence rate was 28.08% in 2003 and 23.35% in 2010. The 2010-2011 seroconversion rates were 13.90% for children 6-59 months of age and 12.30% for children 84-143 months of age. Multilevel logistic regression analysis identified child age, previous wheezing, and current infection with hookworm as significant associated factors for Toxocara spp. seropositivity in 2003. In 2010, age, previous helminthiasis, and having a dog were associated with seropositivity, whereas having piped water inside the household was a protective factor. Control programs mainly need to target at-risk children, water quality control, and animal deworming strategies.

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Section: Discussioncontrasting

confidence: 67%

Epidemiology and Control of Child Toxocariasis in the Western Brazilian Amazon – A Population-Based Study

Oliart-Guzmán¹,

Delfino²,

Martins³

et al. 2014

The American Society of Tropical Medicine and Hygiene

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“…Toxocara canis is widely distributed in most regions of the world where dogs and feral animals like wolves and foxes are infected and is regarded as the main cause of TLM in human beings. Infection results from ingestion of embryonated eggs in soil (Glickman and Schantz 1981) or uncooked vegetables (Vasquez Tsuji et al 1997) or on dog's hair coat (Aydenizoz-Ozkayhan et al 2008;Roddie et al 2008) and ingestion of infective larvae through raw or undercooked meat, giblets or offal (Nagakura et al 1989;Sturchler et al 1990;Taira et al 2004). Seroprevalence surveys indicate that 3-7 % of adults and 15-23 % of children typically have detectable antibodies to Toxocara (Rubinsky-Elefant et al 2008) but higher values have been recorded from the tropics (Mizgajska 2001 andColli et al 2010).…”

Section: Introductionmentioning

confidence: 99%

In vitro production of Toxocara canis excretory-secretory (TES) antigen

et al. 2014

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Toxocara canis is a widespread gastrointestinal nematode parasite of dogs and cause Toxocara larva migrans, an important zoonotic disease in humans on ingestion of infective eggs. Toxocarosis is one of the few human parasitic diseases whose serodiagnosis uses a standardized antigen, T. canis excretory secretory antigen (TES). The present study describes collection of T. canis adult worm, collection and embryonation of T. canis eggs, hatching and separation of T. canis larvae, in vitro maintenance of T. canis second stage larvae for production of TES, concentration of culture fluid TES and yield of TES in correlation with various methods cited in literature.

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“…Direct contact with dogs and cats that harbour a patent Toxocara infection is usually not considered a risk, because the eggs need to mature 3-6 weeks before they are infective (10,20,28). An alternative mode of transmission recently proposed is contact with embryonated eggs on a dog's hair in recent studies (2,4,30,36). The presence of Toxocara spp.…”

Section: Introductionmentioning

confidence: 99%

“…The prevalence of toxocariasis in the human population varies greatly between countries due to factors such as socio-economic status, level of development, local food habits and climate (4,11,33). In addition to, seropositivity has been associated with picageophagia, rural residence, overcrowding, low level education and poverty (31).…”

Section: Introductionmentioning

confidence: 99%

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Presence of Toxocara eggs on the hair of dogs and cats

ÖGE¹

2013

Ankara Üniversitesi Veteriner Fakültesi Dergisi

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Summary: Toxocara canis and Toxocara cati, the common dog and cat ascarids, are zoonotic parasites. Humans can become infected through ingestion of infective eggs. It is generally accepted that human infection is caused as a result of direct contact with contaminated soil. However, recently, the eggs of Toxocara spp. have been found in the hair of dogs. This study was undertaken to determine the prevalence of Toxocara spp. eggs on the hair of dogs and cats. From 130 stray and owned animals, samples were taken from the perianal region, the caudal aspect of the hind limbs and the underside of the tail. In the hair of 49 dogs (49 %) and 4 cats (13.3 %) Toxocara spp. eggs were found. For the cat, total number of Toxocara eggs were 6. One of the egg recovered (16.7 %) was embryonated and one (16.7 %) was unembryonated. A total of 857 Toxocara spp. eggs were found in dogs. 439 (51.2 %) of the eggs recovered were unembryonated, 131 (15.3 %) were embryonating, 89 (10.4 %) were embryonated and 198 (28.1 %) were non-viable. Eggs of Taenia spp., Dipylidium caninum and Toxascaris leonina were also recovered 24, 6 and 15 % of dog hair samples, respectively. As Toxocara spp. eggs were found in the hair of stray/owned dogs and cats, direct contact with dogs and cats may be a potential risk factor for transmission of Toxocara spp. eggs to humans.Key words: Cat, direct contact, dog, eggs, hair, Toxocara spp. Kedi ve köpek tüylerinde

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The investigation of Toxocara canis eggs in coats of different dog breeds as a potential transmission route in human toxocariasis

Cited by 63 publications

References 22 publications

Epidemiology and Control of Child Toxocariasis in the Western Brazilian Amazon – A Population-Based Study

Epidemiology and Control of Child Toxocariasis in the Western Brazilian Amazon – A Population-Based Study

In vitro production of Toxocara canis excretory-secretory (TES) antigen

Presence of Toxocara eggs on the hair of dogs and cats

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