Natural infection by Giardia sp. and Cryptosporidium sp. in dairy goats, associated with possible risk factors of the studied properties

Bomfim, Teresa Cristina Bergamo do; Huber, Franziska; Gomes, Rui; Alves, L.L.

doi:10.1016/j.vetpar.2005.05.067

Cited by 47 publications

(32 citation statements)

References 8 publications

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“…Similarly, Nooredeen et al, (2000) concluded that there is no correlation between Cryptosporidium infection and sex of the animals. In contrary to this, other studies (De Graaf et al, 1999;Bomfim et al, 2005;Diaz et al, 2010) reported the existence of association between the Cryptosporidium infection and age of the animals.…”

Section: Prevalencementioning

confidence: 58%

Cryptosporidium in Calves, Lambs and Kids at Haramaya, eastern Ethiopia

Regassa¹,

Gizaw²,

Abunna³

et al. 2014

Ethiop. Vet. J.

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A cross sectional study was carried out from November 2010 to April 2011 to determine the prevalence of Cryptosporidium in calves, lambs and kids and to assess potential risk factors in Haramaya, eastern Ethiopia. Hence, fecal samples from a total of 237 study animals (133 calves, 63 lambs and 41 kids) were tested with Sheather's flotation technique and Modified Ziehl-Neelsen Staining. Accordingly, the overall prevalence was found to be 23.6% (56/237) with the prevalence of 27.8% (37/133) in calves, 22.2% (14/63) in lambs and 12.2% (5/41) in kids. The prevalence of Cryptosporidium significantly (p = 0.047) varied with species of study animals being three times higher likelihood of occurrence in calves compared to its chance of occurrence in kids (OR = 2.8, 95%CI = 1.0, 7.6). No significant difference in prevalence was observed between kids and lambs. The occurrence of the disease was also assessed among the species of animals by taking into consideration different demographic characteristic of the animals including breed, age and sex. For caprine, the prevalence was higher in the cross breed animals (28.6%) followed by the breed of Hararge highland (25%) with no report of the disease in Boer and Ogaden breeds. In ovine, no association was observed between the infection occurrence and the potential risk factors. Analysis of the risk factors in bovine revealed a significant (p = 0.044) difference in disease occurrence among age groups with almost three times more likelihood of the disease occurrence in calves under 3 months than older age category(OR = 2.9, 95%CI = 1.0, 8.2). In conclusion, this study demonstrated the importance of Cryptosporidium in young ruminants with a higher prevalence among calves than lambs and kids.

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Section: Prevalencementioning

confidence: 58%

Cryptosporidium in Calves, Lambs and Kids at Haramaya, eastern Ethiopia

Regassa¹,

Gizaw²,

Abunna³

et al. 2014

Ethiop. Vet. J.

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“…Giardia infections are common in pigs (20,108), cattle (296), sheep (298), goats (34,50), elks and deer (201), and other ruminants (191).…”

Section: Public Health Importance Of Giardiasismentioning

confidence: 99%

Zoonotic Potential and Molecular Epidemiology ofGiardiaSpecies and Giardiasis

2011

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SUMMARY Molecular diagnostic tools have been used recently in assessing the taxonomy, zoonotic potential, and transmission of Giardia species and giardiasis in humans and animals. The results of these studies have firmly established giardiasis as a zoonotic disease, although host adaptation at the genotype and subtype levels has reduced the likelihood of zoonotic transmission. These studies have also identified variations in the distribution of Giardia duodenalis genotypes among geographic areas and between domestic and wild ruminants and differences in clinical manifestations and outbreak potentials of assemblages A and B. Nevertheless, our efforts in characterizing the molecular epidemiology of giardiasis and the roles of various animals in the transmission of human giardiasis are compromised by the lack of case-control and longitudinal cohort studies and the sampling and testing of humans and animals living in the same community, the frequent occurrence of infections with mixed genotypes and subtypes, and the apparent heterozygosity at some genetic loci for some G. duodenalis genotypes. With the increased usage of multilocus genotyping tools, the development of next-generation subtyping tools, the integration of molecular analysis in epidemiological studies, and an improved understanding of the population genetics of G. duodenalis in humans and animals, we should soon have a better appreciation of the molecular epidemiology of giardiasis, the disease burden of zoonotic transmission, the taxonomy status and virulences of various G. duodenalis genotypes, and the ecology of environmental contamination.

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“…A ocorrência encontrada em Quixadá, Ceará de 7,50% está próxima a encontrada em estudos na região Sudeste do Brasil que varia de 4,8% (Bomfim et al 2005) a 16,66% (Coelho 2011). A maior frequência do parasitismo por Cryptosporidium spp na estação seca também foi relatada por Noordeen et al (2000) e Noordeen et al (2001) na Sri Lanka, ressaltando a resistência que o coccídio tem as condições adversas do meio ambiente, podendo sobreviver fora do animal por um longo período de tempo (Pavlovic et al 2010) e infectar animais em qualquer época do ano.…”

Section: Discussionunclassified

“…Com 0,0% na Polônia (Majewska et al 2000); de 0,0 a 20,0% na França, com uma frequência individual de 2,5% (Castro-Hermida et al 2005, Delafosse et al 2006; 4,8% no Zâmbia (Goma et al 2007); 9,0% na Espanha (Castro-Hermida et al 2007); 9,5% na Bélgica (Geurden et al 2008); 24,0% na Nigéria (Pam et al 2013); 28,5% na Sri Lanka (Noordeen et al 2000); 31,8% na Sér-via (Zorana et al 2006) e 67,7% na Argentina (Venturini et al 2006). Sendo associados a baixas ocorrências em sistemas de produção extensivo (Tembue et al 2006) e altas em sistemas de confinamento/intensivos (Causapé et al 2002, Bomfim et al 2005, Cosendey et al 2008.…”

Section: Introductionunclassified

“…depende principalmente da carga parasitária, da idade e estado imunológico do hospedeiro (Silva et al 1999, Noordeen et al 2002, Bomfim et al 2005, Pavlovic et al 2010, sendo mais severa em jovens e imunossuprimidos (Vieira et al 1997, De Graff et al 1999. A manifestação clínica pode variar de assintomática a grave, que ocasionalmente culmina em óbito.…”

Section: Introductionunclassified

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Ocorrência da infecção por Cryptosporidium spp. em cabritos (Capra hircus)

et al. 2014

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Pesq. Vet. Bras. 34(8):728-732, agosto 2014 728 RESUMO.-O presente estudo teve como objetivo determinar a ocorrência da infecção por Cryptosporidium spp. em cabritos de Quixadá, Ceará, Brasil. Participaram do estudo 400 cabritos, com idade entre três e 360 dias, de ambos os sexos, com e sem padrão racial definido, procedentes de 25 estabelecimentos rurais distribuídos em três circuitos. As fezes foram cadastradas de acordo com o aspecto e cor, distribuídas em tubos tipo "eppendorf ®" e congeladas in natura a -20°C, até o momento das extrações de DNA genô-mico do parasito com auxílio de kit comercial. Para amplificação de fragmentos da subunidade 18S do RNA ribossô-mico (rRNA) foi utilizada a "Nested"-PCR. A ocorrência de Cryptosporidium spp em cabritos de Quixadá foi de 7,50% (30/400). A frequência no período seco e no chuvoso foi de 9,55% (19/199) e 5,47% (11/201), respectivamente (χ 2 =2,39 e P>0,05). Amostras positivas foram identificadas em 64,00% (16/25) das propriedades estudadas e dessas amostras 50,00% (15/30) e 70,00% (21/30) tinham as fezes com aspecto e cor normais, respectivamente, sugerindo que cabritos assintomáticos estão eliminando oocistos. Não foi observada positividade para Cryptosporidium spp.

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Natural infection by Giardia sp. and Cryptosporidium sp. in dairy goats, associated with possible risk factors of the studied properties

Cited by 47 publications

References 8 publications

Cryptosporidium in Calves, Lambs and Kids at Haramaya, eastern Ethiopia

Cryptosporidium in Calves, Lambs and Kids at Haramaya, eastern Ethiopia

Zoonotic Potential and Molecular Epidemiology ofGiardiaSpecies and Giardiasis

Ocorrência da infecção por Cryptosporidium spp. em cabritos (Capra hircus)

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