Dirofilariose Canina No Município De Coari, Estado Do Amazonas, Brasil.

Silva, A. M. A.; Almeida, Katyane de Sousa; Sousa, J. J. N.; Freitas, Fagner Luiz Costa

doi:10.5380/avs.v13i2.11613

Cited by 6 publications

(6 citation statements)

References 2 publications

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“…Interestingly, while the prevalence of infected dogs was 18.2% in the urban area, it varied from 40 to 83.3% among the rural areas (Table 3). Higher canine infection rates in rural than in urban areas were also reported in another study in the state of Amazonas, where Silva et al (2008b) found 4.3 and 42.3% of urban and rural dogs, respectively, infected by D. immitis. Similarly to the present study, the rural dogs sampled by Silva et al (2008b) were mostly owned by riverines; therefore, higher canine infection rates in rural than urban areas could be related to the closer proximity of large water collections because riverines' homes are typically over water during the 6-month flooding period every year.…”

Section: Discussionmentioning

confidence: 56%

Survey of canine tick-borne diseases in Lábrea, Brazilian Amazon: ‘accidental’ findings of Dirofilaria immitis infection

Soares

Camargo

Gennari

et al. 2014

Rev. Bras. Parasitol. Vet.

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Blood samples were collected from 99 domestic dogs from the urban and rural areas of the Lábrea municipality, state of Amazonas, Brazil. Canine serum samples were tested by immunofluorescence assay against Rickettsia spp., which revealed that only 3.0% (1/33) and 7.6% (5/66) of the dogs from urban and rural areas, respectively, reacted positively to at least one Rickettsia species. DNA was extracted from canine blood and tested by a battery of PCR assays targeting protozoa of the genera Babesia and Hepatozoon, and bacteria of the genera Rickettsia and Ehrlichia and family Anaplasmataceae. All samples were negative in the PCR assays targeting the genera Babesia, Hepatozoon, Ehrlichia and Rickettsia. For Anaplasmataceae, 3% (1/33) and 39.4% (26/66) of the urban and rural dogs, respectively, yielded amplicons that generated DNA sequences 100% identical to the corresponding sequence of Wolbachia endosymbiont of Dirofilaria immitis. Because of these results, all canine DNA samples were further tested in a PCR assay targeting filarial nematodes, which was positive for 18.2% (6/33) and 57.6% (38/66) urban and rural dogs, respectively. Filarial-PCR products generated DNA sequences 100% identical to D. immitis. While tick-borne infections were rare in Lábrea, D. immitis infection rates were among the highest reported in South America.Keywords: Dogs, ticks, Rickettsia, Wolbachia, Dirofilaria immitis, Amazon. ResumoAmostras de sangue foram coletadas de 99 cães domésticos de áreas urbana e rural do município de Lábrea, estado do Amazonas. Soros caninos foram testados pela técnica de imunofluorescência indireta contra Rickettsia spp., resultando em apenas 3,0% (1/33) e 7,6% (5/66) de cães soropositivos nas áreas urbana e rural, respectivamente. DNA foi extraído do sangue canino e testado por diferentes protocolos da PCR para detecção de protozoários dos gêneros Babesia e Hepatozoon, e bactérias dos gêneros Rickettsia e Ehrlichia e da família Anaplasmataceae. Todas as amostras foram negativas nos protocolos de PCR para os gêneros Babesia, Hepatozoon, Ehrlichia e Rickettsia. Para Anaplasmataceae, 3% (1/33) e 39,4% (26/66) dos cães de áreas urbana e rural, respectivamente, geraram sequências de DNA 100% idênticas ao endosimbionte Wolbachia de Dirofilaria immitis. Posteriormente, as amostras foram testadas pela PCR para nematódeos filarídeos, resultando em 18,2% (6/33) e 57,6% (38/66) de amostras positivas nas áreas urbana e rural, respectivamente. Os produtos geraram sequências de DNA 100% idênticas a D. immitis. Em contraste com várias outras regiões do Brasil, infecções transmitidas por carrapatos foram raras em Lábrea. Por outro lado, as frequências de infecção por D. immitis estiveram entre as mais altas relatadas na América do Sul.

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Section: Discussionmentioning

confidence: 56%

Survey of canine tick-borne diseases in Lábrea, Brazilian Amazon: ‘accidental’ findings of Dirofilaria immitis infection

Soares

Camargo

Gennari

et al. 2014

Rev. Bras. Parasitol. Vet.

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“…The infection was found more often among male dogs from one to three years old than among females within the same age range, which is not in line with other Brazilian studies that report not finding any differences between genders among infected animals (Almeida et al 2001, Silva et al 2008, Labarthe et al 2014. It is likely that females are cared for differently in Algodoal Island, which makes them less exposed to mosquitoes than males, or that they receive some protective treatment.…”

Section: Discussionmentioning

confidence: 57%

“…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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“…Most areas are moist and warm, due to the influence of the flow rate of its large water bodies, such as the Amazon river. In Coari, AM, 12.5% (SILVA et al, 2008); in Lábrea, AM, 44.4% and in Porto Velho, RO, 12.8% (OGAWA et al, 2013) of the dogs were shown to be infected (Table 3).…”

Section: Resultsmentioning

confidence: 99%

Atualização sobre a epidemiologia de<i> Dirofilaria immitis </i>na América do Sul e no México: revisão de literatura

Bendas

Mendes-de-Almeida

Guerrero

et al. 2017

Braz. J. Vet. Res. Anim. Sci.

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Dirofilaria immitis (LEIDY, 1856; RAILLET; HENRY, 1911) is a parasite that is widely disseminated around the globe, with a higher prevalence in warm, humid climates. The first report of its occurrence in South America is from 1878 in Brazil. At that time, reports were scarce and difficult to retrieve -therefore, gathering them will facilitate recordkeeping over time. Four databases were searched (Scopus, MEDLINE, LILACS, and PubMed) and the search keywords were "Dirofilaria" or "heartworm" and the countries' names. Four countries lacked reports (Bolivia, Ecuador, French Guiana, and Uruguay) and other three (Suriname, Guyana, and Paraguay) had only old reports. Chile was the only country in which studies were conducted over time, and no infected dogs were registered. For the other six countries (Mexico, Peru, Colombia, Venezuela, Argentina, and Brazil), reports showed that the infection frequency varied over time and with the surveyed area. Therefore, the information indicates that D. immitis is established, and veterinarians must institute preventive programs to optimally care for their patients and protect the health of their families. Keywords: Heartworm. Dog. Prevalence. Diagnostic. ResumoDirofilaria immitis (LEIDY, 1856; RAILLET; HENRY, 1911) é um nematoide de ampla distribuição geográfica, que ocorre com maior frequência em áreas quentes e úmidas do planeta. O primeiro registro de sua ocorrência na América do Sul foi realizado em 1878, no Brasil. Naquela época os registros eram poucos e raramente de fácil obtenção, razão pela qual reuni-los facilitará o acesso a tais informações. Quatro bases de dados (Scopus, MEDLINE, LILACS e PubMed) foram estudadas utilizando-se as palavras-chave "Dirofilaria" ou "heartworm", os nomes dos países da América do Sul e o México. Nenhum registro foi encontrado para quatro países (Bolívia, Equador, Guiana Francesa e Uruguai) e para outros três (Suriname, Guiana e Paraguai) os registros eram antigos. Apenas o Chile é o território onde houve estudos registrados com ausência do parasita. Os outros países (México, Peru, Colômbia, Venezuela, Argentina e Brasil) apresentam registros com frequência variável no tempo ou no espaço. Assim, as informações reunidas indicam que infecções por D. immitis ocorrem na maior parte da América do Sul e no México e que os médicos veterinários devem instituir programas preventivos para garantir cuidados médicos de qualidade aos pacientes e para proteger a saúde destes e de suas famílias. Palavras chave: Verme do coração. Cão. Prevalência. Diagnóstico.

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Dirofilariose Canina No Município De Coari, Estado Do Amazonas, Brasil.

Cited by 6 publications

References 2 publications

Survey of canine tick-borne diseases in Lábrea, Brazilian Amazon: ‘accidental’ findings of Dirofilaria immitis infection

Survey of canine tick-borne diseases in Lábrea, Brazilian Amazon: ‘accidental’ findings of Dirofilaria immitis infection

Dirofilaria immitis infection in dogs in Algodoal Island, Brazilian Amazon

Atualização sobre a epidemiologia de<i> Dirofilaria immitis </i>na América do Sul e no México: revisão de literatura

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