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Previous issue date: 2010-02-22 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico, CNPq. / Toxoplasma gondii is an obrigatory intracelular parasite that has the felids as definitive host
(DH) and the homoeothermic animals as intermediary hosts (IH). The infection occurs by
ingesting sporulated oocysts that were eliminated in DH feces, by bradyzoites when ingested
by IH meat or by tachyzoites when occur vertical transmission. In this study, 529 canine
blood samples were collected, 120 at the municipality of Itabuna, and 409 at the municipality
of Ilh?us. All blood samples of Itabuna were consisted of animals from domiciled urban areas.
From Ilh?us, 96 were domiciled from urban areas, 135 were urban but strayed dogs from
Centre for Zoonosis Control (CZC) and 178 were domiciled and from rural area. The Indirect
hemagglutination test was used to test the presence of anti-T. gondii and a questionnaire were
applied to the domiciled dog owners to analyze risk factors associated to the infection. From
all 529 dogs, 193 were positive (36.5%). At Ilh?us 37.7% (154/255) and at Itabuna 32.5%
(39/81) of animals were positive. The risk factors associated to the infection were localization,
rural dogs had higher chance than urban (p=0.001), the behavior, the strayed urban dogs had
more chance than the urban domiciled dogs (p=0.01), home-made food and meat ingestion
(p= 0.034 and 0.027 respectively), race, the undefined race dogs had more risk (p=0.0001)
and age, were the animals under five years old had a higher risk to the infection (p=0.009).
The presence of veterinary assistance was considered as a protection factor. The logistic
regression confirmed the habitat and age of the animals as the main risk factor associsted with
the infection. / Toxoplasma gondii ? um parasito intracelular obrigat?rio que tem como hospedeiro definitivo
membros da fam?lia Felidae e animais homeot?rmicos como hospedeiros intermedi?rios. A
infec??o se d? pela ingest?o de oocistos esporulados eliminados nas fezes dos felinos, pela
ingest?o de bradizo?tos nos tecidos dos HI ou ainda pela transmiss?o vertical de taquizo?tos.
Neste estudo coletou-se sangue de 529 c?es, sendo 120 do munic?pio de Itabuna e 409 de
Ilh?us. Todos os animais de Itabuna eram urbanos domiciliados. Dentre os c?es de Ilh?us, 96
eram urbanos domiciliados, 135 eram urbanos errantes provenientes do Centro de Controle de
Zoonoses (CCZ), e 178 eram rurais domiciliados. Foi realizado o Teste de Hemaglutina??o
Indireta (HAI) para analisar a presen?a de anticorpos anti-T.gondii e um question?rio foi
aplicado junto aos propriet?rios dos animais domiciliados para avalia??o dos principais
fatores de risco associados ? infec??o. Do total de 529 c?es, 193 foram positivos (36,5%). No
munic?pio de Ilh?us 37,7% (154/255) e em Itabuna 32,5% (39/81) foram positivos. Os fatores
de risco associados ? infec??o foram o habitat, onde os animais rurais tiveram maior risco do
que os urbanos (p=0,001), o modo de vida, em que os animais urbanos errantes tiveram maior
risco do que os urbanos domiciliados (p=0,01), ingest?o de comida caseira e de carne (p=
0,034 e 0,027, respectivamente), ra?a apresentando os SRD com maior risco (p=0,0001) e
idade onde os animais acima de cinco anos tiveram maior risco (p=0,009). A presen?a de
orienta??o do M?dico Veterin?rio se mostrou fator de prote??o (p=0,002). A regress?o
log?stica confirmou como principais fatores de risco a idade e o habitat dos animais do estudo
| Identifer | oai:union.ndltd.org:IBICT/oai:localhost:jspui/1156 |
| Date | 22 February 2010 |
| Creators | CARLOS, Renata Santiago Alberto |
| Contributors | Lopes, Carlos Wilson Gomes |
| Publisher | Universidade Federal Rural do Rio de Janeiro, Programa de P?s-Gradua??o em Ci?ncias Veterin?rias, UFRRJ, Brasil, Instituto de Veterin?ria |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da UFRRJ, instname:Universidade Federal Rural do Rio de Janeiro, instacron:UFRRJ |
| Rights | info:eu-repo/semantics/openAccess |
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