Prevalence of Antibodies to Trypanosoma cruzi, Leishmania infantum, Encephalitozoon cuniculi, Sarcocystis neurona, and Neospora caninum in Capybara, Hydrochoerus hydrochaeris, from São Paulo State, Brazil

Valadas, Samantha Yuri Oshiro Branco; Gennari, Solange Maria; Yai, Lúcia Eiko Oishi; Rosypal, Alexa C.; Lindsay, David S.

doi:10.1645/ge-2368.1

Cited by 36 publications

(25 citation statements)

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“…In fact, large numbers of ticks were observed, including A. cajennense, indicating that the potential for the transmission of R. rickettsii exists in the studied population and monitoring should continue. Despite the epidemiologic role played by other rodents in the transmission of leishmaniasis (Ready et al 1983), neither this nor previous studies (Valadas et al 2010) have found evidence of exposure of capybaras to Leishmania sp. However, Trypanosoma spp.…”

Section: Discussioncontrasting

confidence: 68%

“…may be found in a broad variety of wild mammals, including capybaras (Mazzei et al 2009). For example, T. evansi was isolated in 24% of free-ranging capybaras in Colombia (Morales et al 1976), and antibodies against T. cruzi were present in 8% of free-ranging capybaras in the state of São Paulo (Valadas et al 2010). Although none of the capybaras we examined had antibodies against Trypanosoma sp., preliminary investigations have detected antibody to T. cruzi in opossums (Didelphis sp.)…”

Section: Discussionmentioning

confidence: 84%

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HEALTH EVALUATION AND SURVEY OF ZOONOTIC PATHOGENS IN FREE-RANGING CAPYBARAS (HYDROCHOERUS HYDROCHAERIS)

Chiacchio

Prioste

Vanstreels

et al. 2014

Journal of Wildlife Diseases

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ABSTRACT:Capybaras (Hydrochoerus hydrochaeris) are the world's largest rodents and play an epidemiologic role in the transmission of zoonotic pathogens, including the causative agents of Brazilian spotted fever, leptospirosis, and others. We surveyed the health of 31 free-ranging capybaras at the Alberto Lö fgren State Park, São Paulo, Brazil using a variety of diagnostic methods. Hematology and serum chemistry were consistent with mild malnutrition and parasitism but did not indicate severe physiologic imbalance or disease. All animals were serologically negative for Rickettsia rickettsii, Leishmania spp., and Trypanosoma sp., but antibodies against rabies virus (71%), Leptospira sp. (26%), and Toxoplasma sp. (23%) were detected. Salmonella sp. was not cultured from fecal samples. Frequently cultured enterobacteria included Escherichia coli (61%), Enterococcus casseiflavus (35%), Enterococcus faecalis (35%), Enterobacter aerogenes (32%), Klebisella pneumoniae (32%), and Serratia marcescens (32%). No potentially pathogenic fungi were cultured from hair samples. Fecal parasitology revealed infection by Protozoophaga sp. (58%), Viannella spp. (23%), Strongyloides spp. (10%), and Ancilostomatidae (10%). A total of 218 ticks was retrieved from the animals: Amblyomma sp. larvae and nymphs (43%), A. dubitatum adults (52%), and A. cajennense adults (5%). The capybaras were free from most potentially zoonotic pathogens evaluated; however, the presence of Amblyomma spp. ticks (potential vectors of Rickettsia spp.) and indirect evidence of exposure to the rabies virus, Leptospira sp., and Toxoplasma sp. warrant the maintenance of public health programs and wildlife health monitoring.

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Section: Discussioncontrasting

confidence: 68%

Section: Discussionmentioning

confidence: 84%

HEALTH EVALUATION AND SURVEY OF ZOONOTIC PATHOGENS IN FREE-RANGING CAPYBARAS (HYDROCHOERUS HYDROCHAERIS)

Chiacchio

Prioste

Vanstreels

et al. 2014

Journal of Wildlife Diseases

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“…may enhance the susceptibility of dogs to N. caninum infection (CRINGOLI et al, 2002). Serological surveys correlating N. caninum and Leishmania spp., had been conducted ANDREOTTI et al, 2006;GUIMARÃES et al, 2009;GRECA et al, 2010;VALADAS et al, 2010a;LOPES et al, 2011;PAULAN et al, 2013;SEABRA et al, 2015;CONSTANTINO et al, 2016). In dogs from endemic cities of visceral leishmaniosis such as Araçatuba, SP , Campo Grande, MS (ANDREOTTI et al, 2006), and Teresina, PI (LOPES et al, 2011), positive association was found (Table 3).…”

Section: Epidemiologymentioning

confidence: 92%

“…Regarding capybaras, the first study done (YAI et al, 2008) tested animals from 11 counties in SP by IFAT (1:25) and found a prevalence of 9.4% (20/213), suggesting that they can serve as a source of N. caninum infection for wild canids. Also in SP, 63 capybaras were examined for N. caninum by IFAT (1:25) and other diseases and found two positive animals and one of them was positive for both T. cruzi and N. caninum, but no association was observed (VALADAS et al, 2010a). Recently, 170 samples of capybaras from SP were analyzed, but none were positive, although 17 (10%) were positive for T. gondii (ABREU et al, 2016).…”

Section: Epidemiologymentioning

confidence: 99%

All about neosporosis in Brazil

Cerqueira‐Cézar

Calero‐Bernal

Dubey

et al. 2017

Rev. Bras. Parasitol. Vet.

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Neospora caninum is protozoan parasite with domestic and wild dogs, coyotes and grey wolves as the definitive hosts and many warm-blooded animals as intermediate hosts. It was cultivated and named in 1988. Neosporosis is a major disease of cattle and has no public health significance. Since 1990's N. caninum has emerged as a major cause of abortion in cattle worldwide, including in Brazil. N. caninum also causes clinical infections in several other animal species. Considerable progress has been made in understanding the biology of N. caninum and there are more than 200 papers on this subject from Brazil. However, most of the reports on neosporosis from Brazil are serological surveys. Overall, little is known of clinical neosporosis in Brazil, particularly cattle. The few reports pertain to sporadic cases of abortion with no information on epidemics or storms of abortion. The objective of the present review is to summarize all reports from Brazil and suggest topic for further research, including prevalence of N. caninum oocysts in soil or in canine feces, and determining if there are additional definitive hosts, other than the domestic dog. There is need for a national survey in cattle using defined parameters. Future researches should focus on molecular characterization of N. caninum strains, possibility of vaccine production and relationship between wildlife and livestock epidemiology.Keywords: Neospora caninum, neosporosis, domestic animals, wild animals, Brazil. ResumoNeospora caninum é um protozoário parasita que possui os canídeos domésticos e selvagens, coiotes e lobos cinzentos como hospedeiros definitivos e vários animais de sangue quente como hospedeiros intermediários. Foi cultivado e nomeado em 1988. A neosporose é uma das principais doenças em bovinos e não tem significância em saúde pública. Desde 1990, N. caninum tem emergido como uma das principais causas de aborto em bovinos em todo o mundo, inclusive no Brasil. N. caninum também causa infecções clínicas em várias outras espécies animais. Consideráveis avanços foram feitos na compreensão da biologia desse parasita e há mais de 200 trabalhos sobre o assunto no Brasil. No entanto, a maioria dos relatos de neosporose do Brasil são relacionados a sorologia. Em geral, pouco se sabe sobre a neosporose clínica no Brasil, particularmente em bovinos. Os poucos relatos referem-se a casos esporádicos de aborto sem informações sobre epidemias ou surtos de aborto. O objetivo da presente revisão é resumir todos os relatos sobre N. caninum no Brasil e sugerir tópicos para pesquisas futuras, incluindo a prevalência de oocistos de N. caninum no solo ou em fezes caninas e determinar se há hospedeiros definitivos adicionais, exceto o cão doméstico no país. Uma pesquisa nacional em bovinos usando parâmetros definidos seria de grande importância. Pesquisas futuras deveriam ser focadas na caracterização de cepas de N. caninum, possibilidade de produção de vacinas e a relação epidemiológica entre a vida selvagem e o gado.Palavras-chave: Neospora caninum, neospo...

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“…It is an herbivore with semiaquatic habitats (OJASTI, 1991). Both anti-T. gondii and anti-N. caninum antibodies have previously been described in wild capybaras that live in direct contact with wild and domestic animals in Brazil (CAÑON- FRANCO et al, 2003;YAI et al, 2008a, b;VALADAS et al, 2010;TRUPPEL et al, 2010b). The objective of the present study was to investigate the frequency of anti-T. gondii and anti-N. caninum antibodies in free-living capybaras that inhabit a residential park in Itu Municipality, State of São Paulo, southeastern Brazil.…”

Section: Introductionmentioning

confidence: 95%

Anti-Toxoplasma gondii and anti-Neospora caninum antibodies in capybaras (Hydrochoerus hydrochaeris) from Itu Municipality, São Paulo

Aizawa

Krawczak

Nunes

et al. 2016

Rev. Bras. Parasitol. Vet.

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Capybaras (Hydrochoerus hydrochaeris) are the largest rodents found in South America. The aim of the present study was to investigate the occurrence of anti-Toxoplasma gondii and anti-Neospora caninum antibodies in 170 free-living capybaras in a residential park area in Itu Municipality, São Paulo State, Brazil. Serum samples were tested by indirect fluorescent antibody test (IFAT) for T. gondii (IFAT ≥ 1:16) and N. caninum (IFAT ≥ 1:50). Among the 170 samples analyzed, 10% (17/170) and 0% (0/170) were seropositive for T. gondii and N. caninum, respectively. This study confirms the widespread presence of T. gondii and reinforces the role of capybaras in the life cycle of this parasite. Capybaras may not be important as intermediate hosts of N. caninum in the studied environment.

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Prevalence of Antibodies to Trypanosoma cruzi, Leishmania infantum, Encephalitozoon cuniculi, Sarcocystis neurona, and Neospora caninum in Capybara, Hydrochoerus hydrochaeris, from São Paulo State, Brazil

Cited by 36 publications

References 35 publications

HEALTH EVALUATION AND SURVEY OF ZOONOTIC PATHOGENS IN FREE-RANGING CAPYBARAS (HYDROCHOERUS HYDROCHAERIS)

HEALTH EVALUATION AND SURVEY OF ZOONOTIC PATHOGENS IN FREE-RANGING CAPYBARAS (HYDROCHOERUS HYDROCHAERIS)

All about neosporosis in Brazil

Anti-Toxoplasma gondii and anti-Neospora caninum antibodies in capybaras (Hydrochoerus hydrochaeris) from Itu Municipality, São Paulo

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