Herd-level prevalence and associated risk factors for Toxoplasma gondii, Neospora caninum, Chlamydia abortus and bovine viral diarrhoea virus in commercial dairy and beef cattle in eastern, northern and northeastern China

Sun, Wu-Wen; Meng, Qing-Feng; Cong, Wei; Shan, Xiaofeng; Wang, Chunfeng; Ai-dong, Qian

doi:10.1007/s00436-015-4655-0

Cited by 39 publications

(28 citation statements)

References 32 publications

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“…The risk factors identified in this study, such as the number of cows over two years old, abortion history, and frequent purchase of animals were previously reported (GHALMI et al, 2012;SUN et al, 2015). The main clinical manifestation of cattle infected with N. caninum is abortion (HUSSIEN et al, 2012), which was also observed in this study, because the animals that presented a history of abortion had a 12.8 fold greater risk of infection.…”

Section: Discussionsupporting

confidence: 58%

“…Running water was reported as a possible source of infection for cattle (SUN et al, 2015) because, according to these authors, cattle could consume water contaminated with N. caninum oocysts from feces of infected dogs. Dogs can have access to drinking water and at the same time defecate within or near the water source.…”

Section: Discussionmentioning

confidence: 99%

“…Poor quality of water, the presence of dogs, poor hygiene conditions, and a history of abortions have already been reported as risk factors (GHALMI et al, 2012;SUN et al, 2015). In Brazil, the type of herd, method of herd management, presence of definitive hosts (SARTOR et al, 2005), and reproductive problems such as repeated breeding, history of abortion, and anestrus (BRUHN et al, 2013) have been reported as risk factors.…”

Section: Introductionmentioning

confidence: 99%

“…Neosporosis has been identified in several countries, with the following reported seroprevalences: Morocco -8.52% (15/176) (LUCCHESE et al, 2016), (SUN et al, 2015), (GHALMI et al, 2012), (DUONG et al, 2008), Japan -5.7% (139/2420) (KOIWAI et al, 2006), (KYAW et al, 2004), United States -10.34% (9/87) to 32.11% (105/327) , Venezuela -11.3% (52/459) (LISTA-ALVES et al, 2006), Paraguay -29.8% (262/879) (OSAWA et al, 2002), and Spain -35.9% (402/1121) (QUINTANILLA-GOZALO et al, 1999). Antibodies against N. caninum were detected in serum from dairy cattle from herds located in several Brazilian states (RAGOZO et al, 2003), and a seroprevalence of 16.83% (101/600) was reported in the states of São Paulo and Minas Gerais (COSTA et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

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Seroprevalence and risk factors associated with Neospora caninum in crossbred dairy cows in Uberlândia

Nasciutti

Oliveira

Barbosa

et al. 2018

SCA

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Neospora caninum causes reproductive disorders in dairy cattle such as repeat breeding, abortion, and anestrus, which are risk factors associated with the seroprevalence of N. caninum in Brazil and worldwide. This study aimed to verify the risk factors related to the seroprevalence of Neospora caninum in crossbred dairy cows in the city of Uberlândia, Minas Gerais. During, January to July 2013, 740 blood samples were collected from 57 herds with a history of reproductive disorders and determinations of antibody titers against N. caninum were obtained by ELISA assay. The seroprevalence of N. caninum was 18.4% (136/740). Risk factors for N. caninum were cows greater than 2 years of age (P = 0.034), mechanical milking (P = 0.012), and frequent purchase of animals (P = 0.004), in addition to individual history of abortion (P = 0.007) and repeat breeding (P = 0.030). The highest probability of occurrence of associated risk factors was associated with individual history of abortion and repeated breeding and the frequent purchase of animals, with odds of 12.8, 5.9, and 3.8 times, respectively. In conclusion, the risk factors associated with N. caninum: members of the female sex and cows with more than 2 yearsof-age, mechanical milking, and the frequent purchase of animals, in addition to individual history of abortion and repeated breeding.

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Section: Discussionsupporting

confidence: 58%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Seroprevalence and risk factors associated with Neospora caninum in crossbred dairy cows in Uberlândia

Nasciutti

Oliveira

Barbosa

et al. 2018

SCA

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“…While some typically cause clinical disease, others are underreported because of their often asymptomatic infection in animals (Ayinmode et al 2017, Salifu et al 2019. Exposure of apparently healthy cattle to pathogens of zoonotic and reproductive significance is often detected by serological assays (Sun et al 2015, Ayinmode et al 2017.…”

Section: Introductionmentioning

confidence: 99%

Sero-Epidemiological Study of Selected Zoonotic and Abortifacient Pathogens in Cattle at a Wildlife-Livestock Interface in South Africa

Adesiyun

Knobel

Thompson

et al. 2020

Vector-Borne and Zoonotic Diseases

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A cross sectional sero-epidemiological study was conducted on cattle in a communal farming area adjacent to Kruger National Park at a wildlife-livestock interface in South Africa. A total of 184 cattle were screened for exposure to 5 abortifacient or zoonotic pathogens, namely Coxiella burnetii, Toxoplasma gondii, Chlamydophila abortus, Neospora caninum, and Rift Valley fever virus (RVFV) using enzyme-linked immunosorbent assays. In addition, the virus neutralization test was used to confirm the presence of antibodies to RVFV. The seroprevalence of C. burnetii, T. gondii, C. abortus, N. caninum, and RVFV antibodies was 38.0%, 32.6%, 20.7%, 1.6%, and 0.5%, respectively, and varied between locations (p < 0.001). Seroprevalence of C. burnetii and T. gondii was highly clustered by location (intraclass correlation coefficient [ICC] = 0.57), and that of C. abortus moderately so (ICC = 0.11). Seroprevalence was not associated with sex or age for any pathogen, except for C. abortus, for which seroprevalence was positively associated with age (p = 0.01). The predominant mixed infections were C. burnetii and T. gondii (15.2%) and C. burnetii, T. gondii, and C. abortus (13.0%). The serological detection of the five abortifacient pathogens in cattle indicates the potential for economic losses to livestock farmers, health impacts to domestic animals, transmission across the livestock-wildlife interface, and the risk of zoonotic transmission. This is the first documentation of T. gondii infection in cattle in South Africa, while exposure to C. burnetii, C. abortus, and N. caninum infections is being reported for the first time in cattle in a wildlife-livestock interface in the country.

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Protozoan Parasites

Mehlhorn¹

2016

Animal Parasites

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Herd-level prevalence and associated risk factors for Toxoplasma gondii, Neospora caninum, Chlamydia abortus and bovine viral diarrhoea virus in commercial dairy and beef cattle in eastern, northern and northeastern China

Cited by 39 publications

References 32 publications

Seroprevalence and risk factors associated with Neospora caninum in crossbred dairy cows in Uberlândia

Seroprevalence and risk factors associated with Neospora caninum in crossbred dairy cows in Uberlândia

Sero-Epidemiological Study of Selected Zoonotic and Abortifacient Pathogens in Cattle at a Wildlife-Livestock Interface in South Africa

Protozoan Parasites

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