Q fever abortions in ruminants and associated on-farm risk factors in northern Cyprus

Cantas, Hasan; Muwonge, Adrian; Sareyyüpoğlu, Barış; Yardımcı, Hakan; Skjerve, Eystein

doi:10.1186/1746-6148-7-13

Cited by 64 publications

(54 citation statements)

References 36 publications

(44 reference statements)

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“…It yielded four risk factors. Only one of them accorded with results of the studies regarding risk factors of particular abortifacient infections conducted by other authors (Neto et al 2008, Abo-Shehada and Abu-Halaweh 2010, Anderlini et al 2011, Cantas et al 2011, Abu-Dalbouh et al 2012) -regular veterinary supervision was negatively associated with frequent fetal loss. It is possible that regular veterinary visits help farmers to deal with health problems of a herd more effectively, providing them with practical assistance and education.…”

Section: Discussionsupporting

confidence: 62%

“…A few studies have been carried out to identify risk factors for particular abortifacient infections, namely C. burnetii (Cantas et al 2011), T. gondii (Neto et al 2008, Anderlini et al 2011, Abu-Dalbouh et al 2012 and N. caninum (Abo-Shehada and Abu-Halaweh 2010). They allowed to identify contact with dogs and cats, extensive and semi-intensive herd management, poor hygiene and lack of mineral and vitamin supplementation as risk factors.…”

Section: Introductionmentioning

confidence: 99%

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Multivariate model for the assessment of risk of fetal loss in goat herds

Czopowicz¹,

Kaba²,

Szaluś‐Jordanow³

et al. 2012

Polish Journal of Veterinary Sciences

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The observational study was carried out in a population of Polish breeding goats in 2007 to determine the prevalence of fetal loss and identify risk factors contributing to its occurrence. The multivariate model allowing to predict the risk of the occurrence of fetal loss in a herd in a study population was developed. Data on the occurrence of fetal loss, as well as of 28 hypothesized risk factors were collected from goat owners using standardized questionnaire during face-to-face reviews on farms. Moreover, data on the herd-level seroprevalence of four abortifacient infections -Chlamydophila abortus, Leptospira spp., BVDV-1 and Neospora caninum -were included in the final analysis. Fetal loss was reported as occurring often in 12 of 49 goat herds (24.5%). The relationship between the hypothesized risk factors and the occurrence of fetal loss was verified in the multivariate logistic regression (α=0.05). Final analysis yielded four risk factors: regular veterinary supervision at least twice a year (OR 0.188; CI 95% 0.054 -0.656), frequent occurrence of injuries and fractures (OR 3.172; CI 95% 1.081 -9.310), frequent occurrence of respiratory signs in adult goats (OR 4.848; CI 95% 1.353 -17.377) and presence of antibodies to C. abortus in a herd (OR 58.116; CI 95% 1.369 -2466.438). The accuracy of the multivariate model was analyzed using receiver operating characteristic (ROC) curve technique. Area under the curve was 0.895 (CI 95% 0.801-0.981). For optimal cut-off value of 0.20-0.35 the multivariate model had sensitivity of 75.00% and specificity of 89.19% in predicting fetal loss in a herd.

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Section: Discussionsupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Multivariate model for the assessment of risk of fetal loss in goat herds

Czopowicz¹,

Kaba²,

Szaluś‐Jordanow³

et al. 2012

Polish Journal of Veterinary Sciences

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“…An important factor related to abortion rates in herds is the temperature, since fewer abortions take place between months of November and December. However, this occurrence increases gradually from January to February, decreasing again in March (Cantas et al, 2011).…”

Section: Query Fever (Q Fever)mentioning

confidence: 98%

Review of common causes of abortion in dairy cattle in Ethiopia

Tulu¹,

Deresa²,

Begna³

et al. 2018

J. Vet. Med. Anim. Health

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Abortion in dairy cattle may be caused by infectious and non-infectious agents. Infectious causes of abortion in dairy cattle include brucellosis, leptospirosis, listeriosis, Q fever, bovine viral diarrhea, mycotic abortion and neosporosis. Non-infectious causes of abortion in dairy cattle are genetic and non-genetic disorder. Risk factors associated with abortion in dairy cattle are genetic, environmental, management, geographical factors and infectious factors. Abortion in dairy cows brings about breeding and productive damages. Abortions cause significant economic loss to dairy farm. These losses can be attributed to loss of replacement calves, reduced milk production, costs of treatment, feeding of animals and premature culling of productive cows and heifers. Diagnosis of bovine abortion includes the collection of a complete history of the case and relevant epidemiological data and collected sample for analysis. However, determining the cause of bovine abortion is difficult as abortions are caused by numerous infectious and noninfectious factors. Status of abortion and breeds affected by abortion in Ethiopia were also reviewed.

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“…Coxiella burnetii was also found in 7.3% of cattle and 11.1% of goat herds of England and Wales but C. burnetii was not detected in any of the sheep herds (23). In another study done in northern Cyprus, 35% of bovine, 33% of sheep and 50% of goat abortion cases were positive for C. burnetii (24). Although abortions in goats due to coxiellosis occur more than in sheep (25), in this study there was no positive sample in goats and this can be due to the number of goat samples that was low and could not be properly assessed.…”

Section: Discussionmentioning

confidence: 93%

Detection of Coxiella burnetii in Aborted Fetuses of Cattle and Sheep Using Polymerase Chain Reaction Assay in Mashhad City, Iran

Abiri¹,

Khalili²,

Rad³

et al. 2016

Int J Enteric Pathog

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Background: Coxiella burnetii is an important intracellular pathogen that ruminants can act as primary reservoirs. Reservoirs may excrete the bacterium into the placenta, vaginal mucus and feces. Objectives: The aim of this study was to detect C. burnetii in aborted samples from ruminant flocks in Mashhad city, northeast of Iran, using the polymerase chain reaction (PCR) assay. Materials and Methods: A total number of 154 fetal tissue samples of cattle, sheep and goat were subjected to nested PCR assay. Results: Sixteen (17.3%) out of 92 samples from sheep and 15 (25%) from 60 cattle fetuses were positive. Conclusions:The results of this study indicate the presence of C. burnetii in aborted ruminants and these can be the potential reservoirs of C. burnetii in the mentioned area.

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Q fever abortions in ruminants and associated on-farm risk factors in northern Cyprus

Cited by 64 publications

References 36 publications

Multivariate model for the assessment of risk of fetal loss in goat herds

Multivariate model for the assessment of risk of fetal loss in goat herds

Review of common causes of abortion in dairy cattle in Ethiopia

Detection of Coxiella burnetii in Aborted Fetuses of Cattle and Sheep Using Polymerase Chain Reaction Assay in Mashhad City, Iran

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