Molecular identification of Cryptosporidium species in Canadian post-weaned calves and adult dairy cattle

Guy, Rebecca A.; Yanta, Christine A.; Bauman, C.A.

doi:10.1016/j.vprsr.2022.100777

Cited by 2 publications

(6 citation statements)

References 32 publications

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“…Overall, Cryptosporidium frequency on screened farms in the current study was 30%. This frequency is similar to that found in a Canadian national survey among post-weaned calves and adult dairy cattle [ 20 ]. Interestingly, Cryptosporidium prevalence in cattle seems to be higher in industrialized countries when compared to non-industrialized ones due to the animal production intensity, which is more developed in the first ones [ 20 , 21 ].…”

Section: Discussionsupporting

confidence: 88%

“…The absence of C. parvum infection, the major zoonotic species, suggests that adult dairy cattle represent a low risk source of infection for humans even if some of the Cryptosporidium spp. detected in cattle such as C. andersoni or C. bovis have been reported infecting humans too [ 20 ]. Although infections with the latter two Cryptosporidium species are generally asymptomatic in cattle, it has been reported that chronic C. andersoni infections in these animals may result in gastritis associated with reduced milk production and poor weight gain, with potential clinical and economic impact [ 37 ], and it may also contribute to environmental contamination [ 20 ].…”

Section: Discussionmentioning

confidence: 99%

“…detected in cattle such as C. andersoni or C. bovis have been reported infecting humans too [ 20 ]. Although infections with the latter two Cryptosporidium species are generally asymptomatic in cattle, it has been reported that chronic C. andersoni infections in these animals may result in gastritis associated with reduced milk production and poor weight gain, with potential clinical and economic impact [ 37 ], and it may also contribute to environmental contamination [ 20 ]. Further studies on cumulative prevalence, risks factors and pathogenicity are required to give a more accurate assessment of the impact of Cryptosporidium infection in dairy cattle in France.…”

Section: Discussionmentioning

confidence: 99%

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Frequency and Molecular Identification of Cryptosporidium in Adult Prim’Holstein Dairy Cattle Farms in the North of France

Certad,

Gantois,

Merlin

et al. 2024

Microorganisms

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Cryptosporidium apicomplexan protozoa are ubiquitous intracellular agents affecting humans and animals. In particular, bovine cryptosporidiosis is recognized as endemic worldwide. However, epidemiological investigations remain limited in France regarding the burden of these parasites in cattle. To improve our understanding of the epidemiology of cryptosporidiosis, the main aim of this study was to determine the frequency and the genetic diversity of Cryptosporidium in adult Prim’Holstein dairy cattle farms in the north of France. Fecal specimens were collected from 1454 non-diarrheic and non-pregnant animals (nulli-, primi-, or multiparous) throughout 20 farms in an area of 110 km around Lille. For Cryptosporidium species identification, nested PCR followed by sequence and phylogenetic analyses were used. The overall frequency of Cryptosporidium spp. in-fection was 30.00% (C.I. 95%: 12.83–54.33) in farms and 0.89% (C.I. 95%: 0.498–1.57) at the individual level. In primi- or multiparous cows, only C. andersoni was found. C. ryanae, C. bovis/xiaoi and C. andersoni were detected in heifers. The phylogenetic tree confirmed that analyzed sequences were grouped with known reference sequences reported in dairy cattle. Further studies on the cumulative prevalence, risks factors and pathogenicity are needed to give a more accurate assessment of the impact of Cryptosporidium infection in dairy cattle in France.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Frequency and Molecular Identification of Cryptosporidium in Adult Prim’Holstein Dairy Cattle Farms in the North of France

Certad,

Gantois,

Merlin

et al. 2024

Microorganisms

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“…Cryptosporidium spp. es un parásito protozario, coccidiano, zoonótico, intracelular obligado que forma parte del phylum Apicomplexa y familia Cryptosporiidae; el cual se encuentra distribuido en todo el mundo (1)(2)(3)(4)(5) . El parásito afecta el tracto gastrointestinal de especies de vertebrados como bovinos, aves, pequeños rumiantes, roedores, caninos, felinos, conejos, ardillas e incluso al hombre (6)(7)(8)(9) .…”

Section: Introductionunclassified

“…Recientes reportes indican que existen más de 40 especies de Cryptosporidium spp. descritas, de las cuales C. parvum, C. bovis, C. ryanae y C. andersoni se presentan de forma rutinaria en el ganado bovino (5).…”

Section: Introductionunclassified

Prevalencia y factores de riesgo asociados a Cryptosporidium spp. en bovinos de leche de Chiquinquirá (Colombia)

Bulla-Castañeda,

Lancheros Buitrago,

Castañeda Sedano

et al. 2024

Rev. Mex. Cienc. Pecu.

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La criptosporidiosis en una enfermedad que se caracteriza por generar episodios de diarrea en bovinos alrededor del mundo causada por un parásito protozoario del género Cryptosporidium spp. del phylum Apicomplexa y Familia Cryptosporiidae. Es responsable de importantes pérdidas económicas, y sumado a esto, genera un impacto en la salud humana, al poseer la capacidad de parasitar a humanos. El objetivo fue determinar la prevalencia y factores de riesgo asociados a Cryptosporidium spp. en bovinos de Chiquinquirá (Colombia). Se desarrolló un estudio descriptivo de corte transversal con muestreo aleatorio simple, en donde se tuvo en cuenta un tamaño muestral de 1,044 bovinos, entre machos y hembras, de diferentes razas, y grupos etarios con el programa estadístico WinEpi. Las muestras de materia fecal se tomaron directamente del recto y procesadas mediante la técnica de Ziehl-Neelsen modificada (ZN) para la identificación de ooquistes del parásito en el objetivo de 100X. Los datos se procesaron con el programa estadístico Epi Info®. Se encontró una prevalencia general del 7.3 % (73/1000), las hembras, los bovinos de 2 a 4 años y los cruces raciales fueron los más prevalentes. No se encontró asociación estadística significativa entre la raza, edad y sexo de los individuos evaluados, y la positividad al protozoario (P≥0,05). La compra de animales y las producciones de mayor tamaño se consideraron como factores de riesgo para la parasitosis. Se deben diseñar e implementar planes de prevención y control del protozoario basados en prácticas sanitarias que impidan la diseminación de los ooquistes que se encuentran en materia fecal.

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Molecular identification of Cryptosporidium species in Canadian post-weaned calves and adult dairy cattle

Cited by 2 publications

References 32 publications

Frequency and Molecular Identification of Cryptosporidium in Adult Prim’Holstein Dairy Cattle Farms in the North of France

Frequency and Molecular Identification of Cryptosporidium in Adult Prim’Holstein Dairy Cattle Farms in the North of France

Prevalencia y factores de riesgo asociados a Cryptosporidium spp. en bovinos de leche de Chiquinquirá (Colombia)

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