Eimeria macusaniensis associated lesions in neonate alpacas dying from enterotoxemia

Rosadio, Raúl; Londoñe, Pablo; Pérez, David; Castillo, Hugo; Véliz, A Álvaro; Llanco, Luis; Yaya, K.; Maturrano, Lenin

doi:10.1016/j.vetpar.2009.10.010

Cited by 32 publications

(46 citation statements)

References 14 publications

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“…Coccidiosis in camelids is caused by several different species belonging to the genus Eimeria [1,8,9,11,19]. It is the main diarrheal pathogen reported in Peruvian camelids and is regarded as the most common cause of death in alpacas younger than 4 months of age [20][21][22]. Similar to our findings, previous necropsies of diarrheic crias infected with Eimeria have revealed intestines distended by gas, reddened areas affecting primarily the jejunum and ileum, and enlarged mesenteric lymph nodes [20][21][22].…”

Section: Discussionsupporting

confidence: 89%

Outbreak of diarrhea among preweaning alpacas (Vicugna pacos) in the southern Peruvian highland

Rojas

Manchego

Rocha

et al. 2016

J Infect Dev Ctries

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Introduction: Infections, particularly diarrheal infections, are a major cause of neonatal death in South American camelids. The aim of this study was to identify the pathogens that could have caused the recent diarrhea outbreak among the alpacas in Silli, Cusco, located in the southern Peruvian highland. Methodology: Spleen, kidney, and intestine tissue along with fecal and intestinal lavage samples were obtained from 50 one-to five-week-old alpacas and analyzed for the presence of parasites, bacteria, and viruses. Results: Laboratory testing of the 50 crias included in this study revealed that 80% were infected with Eimeria spp., 40% with coronavirus, 34% with E. coli, 32% with rotavirus, 22% with Clostridium spp., and 20% with Cryptosporidium spp. Of these 50 alpaca crias, 20 presented with a single infection (19 positive for Eimeria spp. and 1 positive for rotavirus). Co-infections with up to four pathogens occurred in 60% of the samples. The significance of such infections is not clear, but it is noteworthy that the animals suffering from necrotic and/or hemorrhagic enteritis presented with quadruple infections. It is likely that co-infections increase the severity of the disease. Conclusions: These data show that multiple pathogens circulate among young alpaca crias and could be associated with diarrheal disease in these animals. The findings from this study warrant the provision of subsidies for future assessment of the potential economic impact of these infections on the productivity of the Peruvian alpaca industry.

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Section: Discussionsupporting

confidence: 89%

Outbreak of diarrhea among preweaning alpacas (Vicugna pacos) in the southern Peruvian highland

Rojas

Manchego

Rocha

et al. 2016

J Infect Dev Ctries

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show abstract

“…Estas cepas fueron patogénicas para animales de laboratorio (ratones) y en el análisis molecular evidenciaron mayoritariamente (99%) tener genes cpa codificante de la toxina α (tipo A); además, algunas (8%) tenían la toxina nobel β2 (tipo Aβ2) (Rosadio et al, 2010 …”

Section: Resultsunclassified

“…La presentación de brotes estacionales o cíclicos, al parecer, es producto de las interacciones entre la capacidad inmunológica de la cría, dependiente de la presencia de anticuerpos maternales, y su habilidad de respuesta inmune al agente causal (Ortiz, 1988; Ramírez y Ellis, 1988); así como de las condiciones de manejo, factores climáticos (años lluviosos), y posibles interacciones patológicas con otros agentes infecciosos con capacidad de exacerbar o potenciar la infección clostridial (Rosadio et al, 2010).…”

Section: Introductionunclassified

Efecto Protector De Una Vacuna Polivalente Anticlostridial Sobre La Mortalidad Neonatal en Alpacas.

Rosadio

Liu²,

Véliz³

et al. 2012

Rev. investig. vet. Perú

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“…Esta toxina tiene capacidad de producir lesiones citotóxicas y actividades hemolíticas que podrían explicar posibles acciones patológicas al alcanzar nivel sistémico, y producir desórdenes multi-orgánicos que han sido descritos en la enterotoxemia de alpacas. En este esquema, el desencadenamiento de la enterotoxemia dependería de acciones patogénicas sinérgicas o de co-infecciones con infecciones primarias de una diversidad de patógenos entéricos, entre los cuales se encuentran las infecciones coccidiales descritas por Rosadio et al (2010) o por secreciones de shigatoxinas de E. coli, las cuales han sido demostradas en alpacas con cuadros de enterotoxemia (Luna, 2009). …”

Section: Resultados Y Discusiónunclassified

ANÁLISIS In vitro e in vivo DE SOBREDONANTES CRUDOS DE Clostridium perfringens AISLADOS DE CASOS DE ENTEROTOXEMIA EN ALPACAS.

D.³

et al. 2012

Rev. investig. vet. Perú

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Eimeria macusaniensis associated lesions in neonate alpacas dying from enterotoxemia

Cited by 32 publications

References 14 publications

Outbreak of diarrhea among preweaning alpacas (Vicugna pacos) in the southern Peruvian highland

Outbreak of diarrhea among preweaning alpacas (Vicugna pacos) in the southern Peruvian highland

Efecto Protector De Una Vacuna Polivalente Anticlostridial Sobre La Mortalidad Neonatal en Alpacas.

ANÁLISIS In vitro e in vivo DE SOBREDONANTES CRUDOS DE Clostridium perfringens AISLADOS DE CASOS DE ENTEROTOXEMIA EN ALPACAS.

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