Prevalence and risk factors for Cryptosporidium spp. infection in young calves

Brook, Emily J.; Hart, C. A.; French, Nigel P.; Christley, Robert M.

doi:10.1016/j.vetpar.2007.12.003

Cited by 77 publications

(87 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…oocysts has been reported to be highest among animals 7-21 days of age (BROOK et al, 2008). This finding agrees with the current study where calves of 1 week of age were the group with increased oocysts' shedding, followed by the 2 weeks of age group.…”

Section: Discussionsupporting

confidence: 93%

Prevalence of Cryptosporidium spp. and Giardia spp., spatial clustering and patterns of shedding in dairy calves from Córdoba, Argentina

Tiranti

Larriestra

Vissio

et al. 2011

Rev. Bras. Parasitol. Vet.

View full text Add to dashboard Cite

The objectives of this study were to estimate calf and herd prevalence of Cryptosporidium spp. and Giardia spp., the herd prevalence clustering, spatial distribution according to soil type and shedding patterns in dairy calves from Cordoba, Argentina. Six hundred twenty calves younger than 7 weeks of age from 43 dairy herds were sampled. Samples were processed with the formol-ether and modified Ziehl-Neelsen techniques. Univariate analysis and Kruskall-Wallis tests were used. Factors associated were subjected to multivariate analysis with calf shedding intensity as the response variable. Clustering of herd prevalence was assessed by a scan method, and spatial analysis was applied to explore the overlapping of high prevalence herds and soil type. Overall calf prevalence for Cryptosporidium spp. oocysts and Giardia spp. cysts were 19.35% (95% CI: 16.14; 22.54) and 34.50% (95% CI: 30.69; 38.34), respectively. Calves younger than two weeks of age were almost four times more likely to be infected with Cryptosporidium, in comparison to older ones (RR: 3.78, 95% CI: 2.27; 6.26). Giardia spp. shedding showed a similar age pattern (RR: 1.33, 95% CI: 1.02; 1.75). A primary cluster of high Cryptosporidium prevalence was found, and high prevalence herds were located in areas with poor drained soil.

show abstract

Section: Discussionsupporting

confidence: 93%

Prevalence of Cryptosporidium spp. and Giardia spp., spatial clustering and patterns of shedding in dairy calves from Córdoba, Argentina

Tiranti

Larriestra

Vissio

et al. 2011

Rev. Bras. Parasitol. Vet.

View full text Add to dashboard Cite

show abstract

“…On the other hand, there were relatively higher prevalence reports of Cryptosporidium in different countries. Prevalence of 35.5% in USA, 33.5% in Vietnam, 27.9% in UK, 28.5% in Sirlanka and 47.9 in Spain by Santin et al (2004), Nguyen et al (2007), Brook et al (2008), Noordin et al (2000) and Castro-Hermida et al (2002) were reported, respectively. Exceptionally, some of the reports revealed the highest prevalence of 50% in Netherlands (Huetink et al, 2001) and 70% in USA (Fayer et al, 2000).…”

Section: Prevalencementioning

confidence: 94%

“…Kvac et al, (2006) explained that the animal is becoming resistant with age due to the immune development through time. For instance, Brook et al (2008) recorded that calves under 4 months were 13 times more likely to be infected with Cryptosporidium than older ones. It was also agreed by Xiao et al, (2004) and Nguyen et al (2007) that although Cryptosporidium was observed among all age groups, the prevalence of the disease in calves less than 6 months is significantly higher than older cattle.…”

Section: Prevalencementioning

confidence: 99%

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

Regassa¹,

Gizaw²,

Abunna³

et al. 2014

Ethiop. Vet. J.

View full text Add to dashboard Cite

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.

show abstract

“…In calves, the highest infection rates are reported in calves 7-14 days old [7,37] , 8-14 days old [4,38] and 8-21 days old [39] . In accordance with the literature, in the present study, the infection prevalence was highest in calves aged between 8-15 days (12.7%), followed by those aged 1-7 days (6.7%) and 16-30 days (0.5%).…”

Section: Discussionmentioning

confidence: 99%

Erzurum Yöresinde Buzağılarda Cryptosporidiosisin Prevalansı ve Cryptosporidium Türlerinin Moleküler Karekterizasyonu

Güven¹,

Avcıoğlu²,

Balkaya³

et al. 2013

Kafkas Univ Vet Fak Derg

View full text Add to dashboard Cite

SummaryThis study was conducted to determine the prevalence of cryptosporidiosis and to identify Cryptosporidium species found in preweaned calves, in Erzurum, Turkey. Fecal samples were collected from 307 calves up to one month old from 5 dairy farms. Genomic DNA was obtained by DNA extraction (QIAamp DNA Stool kit). The prevalence of cryptosporidiosis was determined based on identification through a nested PCR protocol to amplify fragments of the Cryptosporidium SSU rRNA gene. 3.9% of calves were positive for Cryptosporidium. Calves that were subjected to traditional herd management, were female, aged 2 weeks, and had watery feces were affected by the disease at a greater incidence than those were subjected to planned herd surveillance program, were males, were older than 3 weeks, and had firm feces. DNA sequence analysis of the SSU rRNA gene on all of the PCR positive samples ascertained that C. parvum was the only species present. Further studies should be performed comprehensive fecal analysis for other causative agents for association Cryptosporidium species in calf diarrhea and mortality resulting in economic loss in the region. Keywords: Calf, Cryptosporidium, Nested-PCR, SSU rRNA, Erzurum Erzurum Yöresinde Buzağılarda Cryptosporidiosisin Prevalansı veCryptosporidium Türlerinin Moleküler Karekterizasyonu ÖzetBu çalışma, Erzurum yöresindeki sütten kesim öncesi dönemdeki buzağılarda cryptosporidiosisin prevalansının ve Cryptosporidium türlerinin moleküler karekterizasyonunun ortaya konması amacıyla yapılmıştır. Bu amaçla beş süt işletmesinden, bir aydan küçük 307 buzağının dışkı örnekleri toplanmış ve DNA ekstraksiyonu (QIAamp DNA Stool kit) yapılarak genomik DNA elde edilmiştir. Nested PCR protokolü ile Cryptosporidium SSU rRNA gen bölgesinin kısmi amplifikasyonu yapılmış ve cryptosporidiosis prevalansı %3.9 olarak belirlenmiştir. Geleneksel yöntemlerle yetiştirilen, dişi, 2 haftalık yaşta ve sulu dışkıya sahip buzağıların modern işletmelerde yetiştirilen, erkek, 3 haftadan büyük ve katı kıvamlı dışkıya sahip olanlara göre hastalıktan daha çok etkilendiği saptanmıştır. PCR pozitif örneklerin SSU rRNA gen bölgesi hedef alınarak yapılan DNA dizi analizleri sonuçlarına göre C. parvum'un hayvanlarda bulunan tek tür olduğu anlaşılmıştır. Sonuç olarak, yörede ekonomik kayıplara neden olan buzağı ishalleri ve ölümlerinde Cryptosporidium türleri ile diğer hastalık etkenlerinin etkileşimlerinin ortaya konması amacıyla daha kapsamlı çalışmaların yapılmasının gerekliliği sonucuna varılmıştır.

show abstract

Prevalence and risk factors for Cryptosporidium spp. infection in young calves

Cited by 77 publications

References 30 publications

Prevalence of Cryptosporidium spp. and Giardia spp., spatial clustering and patterns of shedding in dairy calves from Córdoba, Argentina

Prevalence of Cryptosporidium spp. and Giardia spp., spatial clustering and patterns of shedding in dairy calves from Córdoba, Argentina

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

Erzurum Yöresinde Buzağılarda Cryptosporidiosisin Prevalansı ve Cryptosporidium Türlerinin Moleküler Karekterizasyonu

Contact Info

Product

Resources

About