Seroprevalence of Toxoplasma gondii antibodies in stray cats and dogs in the Bangkok metropolitan area, Thailand

Jittapalapong, Sathaporn; Nimsupan, Burin; Pinyopanuwat, Nongnuch; Chimnoi, Wissanuwat; Kabeya, Hidenori; Maruyama, Soichi

doi:10.1016/j.vetpar.2006.10.021

Cited by 55 publications

(49 citation statements)

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“…On the other hand, we can assess that R. norvegicus has possibly a minor role in the transmission cycle in Bangkok metropolitan area. Indeed, this species occupies different spaces than the increasing number of cats and stray dogs, which are designated to be the main actors of this transmission ( Jittapalapong et al 2007). …”

Section: Discussionmentioning

confidence: 99%

“…In Thailand, where toxoplasmosis has never been investigated in rodents, recent studies have shown widespread cases of infection in humans (Maruyama et al 2000), dogs and cats ( Jittapalapong et al 2007), swine (Thiptara et al 2006), goats ( Jittapalapong et al 2005), elephants (Tuntasuvan et al 2001), and tigers (Thiangtum et al 2006). Therefore, this study was first designed to determine the presence and prevalence of T. gondii in wild rodents in Thailand and then to enlighten from an ecological point of view their importance in the transmission of this parasite either to other animals or to humans.…”

Section: Introductionmentioning

confidence: 99%

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Toxoplasmosis in Rodents: Ecological Survey and First Evidences in Thailand

Jittapalapong

Sarataphan

Maruyama

et al. 2011

Vector-Borne and Zoonotic Diseases

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Domestic and wild rodents known as the most abundant and diversified order of mammals have a key role in the ecological food chain and also in the transmission of parasites and pathogens to other animals. While foraging on the ground, they can get infected by Toxoplasma gondii, a protozoan parasite, which is the causative agent of toxoplasmosis. Therefore, they serve as intermediate hosts of T. gondii and can transmit it to their predators. To assess their role in the maintenance of T. gondii lifecycle in Thailand, we sampled rodents in a range of biotopes representative of the high biodiversity and conducted a serological survey with latex agglutination test to detect anti-T. gondii antibodies. Overall, 21 of 461 (4.6%) rodents had diagnostically significant antibody titers (cutoff, 1:64). Every species with at least 37 individuals captured tested positive, confirming the wide range of potential mammalian hosts of toxoplasmosis. None of the ecological traits (sex, maturity, morphology, season, or habitat) was found significant to predict the susceptibility to T. gondii both univariately and in a multivariate analysis. However, high prevalences were reported in either forested or anthropized areas. This survey constitutes the first confirmed serological investigation of T. gondii in rodents in Thailand. The rarity of both domestic and wild felids in Thailand emphasizes the importance of rodents in maintaining T. gondii, and questions the involvement of other carnivores in the life cycle.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Toxoplasmosis in Rodents: Ecological Survey and First Evidences in Thailand

Jittapalapong

Sarataphan

Maruyama

et al. 2011

Vector-Borne and Zoonotic Diseases

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“…The altered predator-prey dynamics limits IH-HD T. gondii transmission, however toxoplasmosis does occur in urban hosts. Most surveys conducted in stray cats show low prevalences ranging from 5 to 20% [60,61,62,41] [64]. These cases may correspond to areas where cats have access to predation.…”

Section: Urban Toxoplasmosismentioning

confidence: 99%

The Life Cycle of Toxoplasma gondii in the Natural Environment

Gilot‐Fromont¹,

Lélu

Dardé

et al. 2012

Toxoplasmosis - Recent Advances

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“…These animals may be involved in the mechanical transmission of T. gondii to humans as reported by others (Frenkel & Parker 1996, Lindsay et al 1997, mentioned above in the underlined sentence. The most important fact, however, is that dogs and man are exposed to the same sources of T. gondii (Dubey & Beattie 1988, Cabral et al 1998, Garcia et al 1999, Cañón-Franco et al 2004, Jittapalapong et al 2007). Thus, this study aimed to determine the frequency of antibodies to Toxoplasma gondii in dogs from Ubatuba, a coastal municipality in São Paulo State, Brazil, characterized by low hygienic-sanitary conditions associated with the tropical conditions of the Brazilian coast and the risk factors that favor the infection in animals.…”

Section: Introductionmentioning

confidence: 99%

Risk factors and presence of antibodies to Toxoplasma gondii in dogs from the coast of São Paulo State, Brazil

et al. 2010

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RESUMO.-[Fatores de risco e presença de anticorpos para Toxoplasma gondii em cães do litoral do Estado de São Paulo.] A toxoplasmose é causada por um protozoário parasita intracelular obrigatório, Toxoplasma gondii, e acomete vertebrados homeotérmicos incluindo animais de companhia e o homem. O cão apresenta importância epidemiológica por atuar como sentinela da infecção para o homem. O presente estudo objetivou determinar a ocorrência de anticorpos para T. gondii em 205 amostras de soro de cães do município de Ubatuba, SP, Brasil, pela reação de imunofluorescência indireta (RIFI), assim como os fatores de risco relacionados à infecção nos animais, como raça, idade, sexo, acesso a rua, ingestão de comida caseira, acesso a água não tratada e presença de roedores. 52/205 (25,4%) Toxoplasmosis is caused by the obligate intracellular protozoan parasite Toxoplasma gondii and affects warm-blooded vertebrates, including pets and man. Dogs are epidemiologically important since they act as sentinels for the infection in humans. The present study aimed to determine the presence of antibodies to T. gondii in 205 serum samples from dogs in Ubatuba, Sao Paulo state, Brazil, through indirect immunofluorescence reaction (IFAT), as well as the risk factors related to toxoplasmosis in the animals such as breed, age, sex, access to outdoors, homemade food ingestion, access to untreated water, and contact with rodents. Toxoplasmosis-positive samples accounted for 52/205 (25.4%), with titers ranging from 16 to 256. The serological results presented significant association (P<0.05) with homemade food ingestion (45/118; 38.1%; CI95% 29.9%-47.2%) (OR=7.0; CI95% 3.0-16.6), and with access to outdoors where those that do not have access to the street were prevalent (37/121; 30.6%; CI95% 23.1%-39.3%) (OR=0.5; CI95% 0.2-1.0). These results show that toxoplasmosis in this region is related to problems of sanitary education, mainly concerning the appropriate cooking of foods, since most positive animals did not show significant association with the presence of rodents or untreated water consumption but showed, instead association with ingestion of homemade food. Thus, toxoplasmosis is a public health problem in the studied region, and sanitary measures are needed to control the infection due to the strict relationship between man and dog and the presented risk factors. e acesso a rua, em que aqueles que não tinham acesso a rua foram prevalentes (37/121; 30,6%; IC95% 23,1%-39,3%) (OR=0,5; CI95% 0,2-1,0). Estes resultados demonstram que a toxoplasmose na região está relacionada com problema de educação sanitária, principalmente quanto ao adequado cozimento dos alimentos, visto que a maioria dos animais positivos não apresentou associação significativa com presença de roedores ou consumo de água não tratada, porém os mesmos permaneciam em casa aos quais fora oferecida comida caseira. Portanto, a toxoplasmose consiste em um problema de saúde pública na região estudada, sendo necessárias medidas sanitári-as para o controle da infecção, visto a...

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Seroprevalence of Toxoplasma gondii antibodies in stray cats and dogs in the Bangkok metropolitan area, Thailand

Cited by 55 publications

References 10 publications

Toxoplasmosis in Rodents: Ecological Survey and First Evidences in Thailand

Toxoplasmosis in Rodents: Ecological Survey and First Evidences in Thailand

The Life Cycle of Toxoplasma gondii in the Natural Environment

Risk factors and presence of antibodies to Toxoplasma gondii in dogs from the coast of São Paulo State, Brazil

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