The zoonotic potential of Giardia and Cryptosporidium in Norwegian sheep: A longitudinal investigation of 6 flocks of lambs

Robertson, Lucy J.; Gjerde, Bjørn; Hansen, Elisabeth F.

doi:10.1016/j.vetpar.2010.03.014

Cited by 90 publications

(78 citation statements)

References 29 publications

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“…The transport and storage practices utilised in this study were consistent with other similar 114 studies that used PCR to detect these parasites (Yang et al, 2009;Ng et al, 2010a; 115 2010b; Robertson et al, 2010). Lamb live weight was recorded at all five sampling 116 occasions.…”

Section: Infections 65supporting

confidence: 61%

Cryptosporidium and Giardia associated with reduced lamb carcase productivity

Sweeny¹,

Ryan²,

Robertson³

et al. 2011

Veterinary Parasitology

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Live weight, growth rate and BCS were inconsistently associated with protozoa detection 37 across different samplings and farms. Adjusted WEC was correlated positively with FCS 38 and negatively with faecal DM%, differing between sampling occasions and farms. 39Campylobacter jejuni prevalence was very low (<1%). Adjusted WEC were not correlated 40 with carcase attributes, growth rates or live weights. This study is the first to quantify 41 productivity consequences of naturally acquired protozoa infections in lambs managed 42 under extensive farming conditions. 43

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Section: Infections 65supporting

confidence: 61%

Cryptosporidium and Giardia associated with reduced lamb carcase productivity

Sweeny¹,

Ryan²,

Robertson³

et al. 2011

Veterinary Parasitology

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“…Previous studies have reported prevalences by PCR of 4% -89.2% in lambs (Ryan et al, 2005;Santín et al, 2007;Geurden et al, 2008;Gómez-Muñoz et al, 2009;Yang et al, 2009;Nolan et al, 2010;Robertson et al, 2010;Sweeny et al, 2011;Gómez-Muñoz et al, 2012). In Australia, previous studies in WA have reported prevalences of 11.1% and 44% in pre and post-weaned lambs (Yang et al, 2009), while in Vic, a prevalence of 15.1% was reported in lambs (<7 weeks) (Nolan et al, 2010).…”

Section: Discussionmentioning

confidence: 96%

“…Giardia is widely distributed in sheep with prevalence's of 1.5% to 55.6% reported (Feng and Xiao, 2011). The host specific assemblage E (livestock genotype) and the zoonotic assemblage A have been predominately reported in sheep (Giangaspero et al, 2005;Ryan et al, 2005;Santín et al, 2007;Geurden et al, 2008, Gómez-Muñoz et al, 2009Sprong et al, 2009;Yang et al, 2009;Lebbad et al, 2010;Nolan et al, 2010;Robertson et al, 2010;Sweeny et al, 2011;Feng and Xiao, 2011;Gómez-Muñoz et al, 2012;Zhang et al, 2012), although assemblage B has also been reported (Aloisio et al, 2006;Zhang et al, 2012). Previous studies conducted in Australia have examined lambs in Western Australia (WA) and Victoria (Vic) only (Ryan et al, 2005;Yang et al, 2009;Nolan et al, 2010;Sweeny et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Development of a quantitative PCR (qPCR) for Giardia and analysis of the prevalence, cyst shedding and genotypes of Giardia present in sheep across four states in Australia

Yang¹,

Jacobson²,

Gardner³

et al. 2014

Experimental Parasitology

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. cysts g -1 (median = 1.7 x 10 4 ), 63 -1.1 x 10 9 cysts g -1 (median = 9.6 x 10 3 ), 63 -4.7 x 10 9 cysts g -1 (median = 8.1 x 10 4 ) respectively. Assemblage specific primers at the triose phosphate isomerase

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“…Distribuída no mundo todo, está última espécie foi isolada em seres humanos (ONG et al, 2002;XIAO, 2010), mas tem sido observada em cordeiros com menos de doze meses de idade (SANTÍN; FAYER, 2007;YANG et al, 2009;FURUSETH HANSEN, 2010;WANG et al, 2010;SWEENY et al, 2011). Subtipagem de sete isolados de C. parvum, baseados na análise da sequência do gene GP60, revelou a presença de cinco diferentes subtipos (IIaA17G1R1, IIaA16G1R1, IIdA20G1, IIdA24G1 and IIdA22G2R1) pertencentes a duas famílias de subtipos zoonóticos (IIa and IId).…”

Section: Criptosporidiose Em Ovinosunclassified

Criptosporidiose em animais domésticos: aspectos epidemiológicos

et al. 2013

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ResumoEstudos referentes á criptosporidiose são essenciais, devido sua relevância em saúde pública e por sua patogenicidade em animais de produção e de companhia. Nos últimos 20 anos, houve uma rápida expansão das pesquisas envolvendo o gênero Cryptosporidium, em grande parte relacionada a estudos moleculares, propiciando a descrição de várias espécies, genótipos e subtipos do parasito. A caracterização molecular de isolados de diferentes origens (animal, humana e ambiental) tem sido amplamente usada com o intuito de investigar o potencial zoonótico deste protozoário. As formas de transmissão documentadas são de animais para o ser humano, de pessoa para pessoa, por meio de ingestão ou do uso de água destinada a lazer contaminada direta ou indiretamente com oocistos esporulados. A elevada taxa de animais naturalmente infectados e a susceptibilidade ao protozoário justificam a importância de se atentar para a ocorrência desta enfermidade. Assim, são demonstrados aspectos epidemiológicos desta zoonose em animais domésticos. Palavras-chave: Cryptosporidium spp., ruminantes, equinos, caninos, felinos AbstractStudies related cryptosporidiosis will be essential, due to its relevance in public health and pathogenicity in pets and production animals. Over the past 20 years, there has been a rapid expansion of research involving the Cryptosporidium genus, largely related to molecular studies, providing a description of

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The zoonotic potential of Giardia and Cryptosporidium in Norwegian sheep: A longitudinal investigation of 6 flocks of lambs

Cited by 90 publications

References 29 publications

Cryptosporidium and Giardia associated with reduced lamb carcase productivity

Cryptosporidium and Giardia associated with reduced lamb carcase productivity

Development of a quantitative PCR (qPCR) for Giardia and analysis of the prevalence, cyst shedding and genotypes of Giardia present in sheep across four states in Australia

Criptosporidiose em animais domésticos: aspectos epidemiológicos

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