Evidence of Neospora caninum infection in buffaloes (Bubalus bubalis) from Northwestern Romania

Bărburaș, Diana; Györke, Adriana; Ionică, Angela Monica; Bărburaș, Remus; Mircean, Viorica; Cozma, Vasile

doi:10.1007/s00436-019-06263-4

Cited by 7 publications

(16 citation statements)

References 18 publications

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“…Although, our study showed that there was no association between the seropositive and the sex, the breed, the farm and the age group of buffalo but many studies showed that the seropositive for N. caninum infection in buffalo increased with age as in cattle and suggested that horizontal transmission from dogs was an important route of exposure to N. caninum [3,15,20,13,19,18,11] . However, there were many studies showed that transplacental transmission can also occur in buffaloes as in cattle [21,4,14,5,22,23] .…”

Section: Resultsmentioning

confidence: 87%

“…The seroprevalence of N. caninum in buffaloes varies among countries and tests; for instance, 44% in Brazil by IFAT [10] , 68.5% in Romania by PCR [11] , 88.3% in Australia by ELISA [12] , 43.3% in Northeast of Argentina by IFAT [13] , 25.4% in Northeast of Argentina by IFAT [14] , 54.7% in Pakistan by ELISA [15] , 37% in Iran by ELISA [16] , 55.5% in Brazil by ELISA [17] , 24.3% in Mexico by ELISA [18] .…”

Section: Resultsmentioning

confidence: 99%

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High Occurrence of Neospora caninum Antibodies in Buffaloes from the Central, Thailand

Toompong¹,

Chaikhun-Marcou²,

Intarapak³

2020

J. Anim. Vet. Adv.

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Neospora caninum is now recognized as a major cause of abortion in cattle worldwide. The prevalence of N. caninum infection in buffaloes reported worldwide caused the buffalo considered to be an important intermediate host of N. caninum even though the role of N. caninum infection in buffalo is still unclear. At present, there was only few reports concerned N. caninum infection in buffaloes from Thailand. We examined the seroprevalence of N. caninum antibodies in 112 clinical healthy buffaloes from the central, Thailand using a commercial competitive ELISA (VMRD, Pullman, USA). Antibodies to N. caninum were found in 78 out of 112 buffaloes (69.6%). Our study showed the high seroprevalence of N. caninum infection in buffaloes from Thailand. To our knowledge, this is the first report of N. caninum infection in Murah, river buffaloes and crossbred buffaloes in Thailand.

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Section: Resultsmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 99%

High Occurrence of Neospora caninum Antibodies in Buffaloes from the Central, Thailand

Toompong¹,

Chaikhun-Marcou²,

Intarapak³

2020

J. Anim. Vet. Adv.

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“…N. caninum DNA was identified by 18S PCR assay in the brains and hearts of three buffalo fetuses that suffered spontaneous abortion between the fourth and 6 months of gestation (96). Additionally, these fetal tissues were considered negative for the major pathogens responsible for reproductive failures in buffalo, including Brucella spp., Salmonella spp., Chlamydophila spp., Listeria spp., Campylobacter spp., Coxiella burnetti, Leptospira spp., Toxoplasma gondii, Bovine and Bubaline Herpesvirus (BoHV1 and BuHV1), and bovine viral diarrhea virus (BVDV), indicating N. caninum as an important abortive agent (96). In a recently published study, a Neospora-associated abortion was reported for the first time in buffalo from India, where tissues from two fetuses were positive by immunohistochemistry (81).…”

Section: Epidemiologymentioning

confidence: 99%

“…Neospora caninum is recognized as one of the major causes of reproductive failures in cattle; however, little is known about the pathogenesis of the disease in buffalo. So far, natural abortion in buffalo by neosporosis was only reported in one study (96), and all knowledge relative to the pathogenesis is based on experimental observations. Non-suppurative encephalitis and myocarditis were observed in aborted fetuses, and few N. caninum-like cysts were identified in histologic sections of the brain, but none of the molecular techniques were used, compromising the diagnoses as N. caninum (95).…”

Section: Pathogenesismentioning

confidence: 99%

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A Review of Toxoplasmosis and Neosporosis in Water Buffalo (Bubalus bubalis)

et al. 2020

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Toxoplasmosis and neosporosis are diseases with worldwide distribution that are associated with reproductive problems in livestock and responsible for economic losses. This review presents an overview of the current knowledge relative to these diseases in water buffalo (Bubalus bubalis). In general, buffalo are considered resistant to clinical toxoplasmosis because there are studies only reporting serological evidence of natural infection in these animals. Studies have described age, poor hygienic status of the farm, and presence of cats as risk factors for the development of Toxoplasma gondii infection in buffalo. It must be highlighted that buffalo meat, which does not receive adequate freezing treatment, could be a potential source for toxoplasmic human infection as well as the importance of raw buffalo milk in the transmission of toxoplasmosis to human beings. Neospora caninum is considered one of the major causes of abortion and responsible for huge economic losses in cattle. Vertical transmission is the main route to infect calves, and is responsible for maintaining the parasite within a herd. In buffalo, vertical transmission is also described; moreover, although there are indications that N. caninum may be associated with abortion in dairy buffalo, the reproductive importance of neosporosis is apparently lower in buffalo relative to cattle. Most studies have identified a higher time of exposition to N. caninum oocysts relative to age. The household system was also described as a risk factor for infection, possibly due to persistent contact between the home-raised buffalo and canids. The fetal immune competence of buffalo is similar to bovine, and buffalo fetus are highly susceptible to infection during the first trimester of pregnancy, indicating that N. caninum may be an abortigenic agent in buffaloes. Alternatively, it is interesting to note there is evidence that the inflammatory response in pregnant buffalo infected with N. caninum is mild enough to avoid abortion in most cases. It is proposed that the possible transmission of toxoplasmosis through unprocessed milk and buffalo meat may occur, which is important in terms of public health. Additionally, there is strong evidence to suggest that N. caninum may be associated with abortion in buffalo.

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Prevalence of Neospora caninum, Toxoplasma gondii and Brucella abortus in water buffalo (Bubalus bubalis): Climatic and environmental risk factors in eastern and southeast Mexico

Baltazar-Pérez

Utrera-Quintana²,

Camacho-Ronquillo³

et al. 2022

Microbial Pathogenesis

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Evidence of Neospora caninum infection in buffaloes (Bubalus bubalis) from Northwestern Romania

Cited by 7 publications

References 18 publications

High Occurrence of Neospora caninum Antibodies in Buffaloes from the Central, Thailand

High Occurrence of Neospora caninum Antibodies in Buffaloes from the Central, Thailand

A Review of Toxoplasmosis and Neosporosis in Water Buffalo (Bubalus bubalis)

Prevalence of Neospora caninum, Toxoplasma gondii and Brucella abortus in water buffalo (Bubalus bubalis): Climatic and environmental risk factors in eastern and southeast Mexico

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