Survey of Neospora caninum and bovine herpes virus 1 coinfection in cattle

Rinaldi, Laura; Pacelli, F.; Iovane, G.; Pagnini, Ugo; Veneziano, Vincenzo; Fusco, Giovanna; Cringoli, Giuseppe

doi:10.1007/s00436-006-0335-4

Cited by 16 publications

(8 citation statements)

References 24 publications

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“…The seroprevalence (27.7%) in 3 counties (Arad, Bihor, and Timiş) was lower, however, than that previously reported in cattle with reproductive problems from dairy farms in central and northern regions of the country (55.9%; Gavrea and Cozma, 2010). Compared to several other European countries, our seroprevalence was higher than that reported in Slovakia (20.1%; Reiterová et al, 2009) and Hungary (2.5%; Hornok et al, 2006), similar to that found in the northwest of Spain (23.2%; Eiras et al, 2011) but lower than that reported in Italy (32.0%; Rinaldi et al, 2007) and Turkey (46.5%; Kul et al, 2009).…”

supporting

confidence: 74%

“…0.05) was found between the seroprevalence of N. caninum antibodies associated with the breed of the animals. Several studies have shown that dairy cattle are more susceptible to N. caninum than are beef cattle (Bartels et al, 2006;Hornok et al, 2006;Rinaldi et al 2007), and vice versa (Eiras et al 2011), but breed-related susceptibility to infection was not demonstrated; in addition, the role of farm dogs was not investigated in these studies.…”

mentioning

confidence: 91%

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Serological Survey of Neospora caninum Infection in Cattle Herds From Western Romania

Imre¹,

Morariu²,

Ilie³

et al. 2012

Journal of Parasitology

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Serum samples from 376 randomly selected adult cattle, from 25 farms located in 3 counties (Arad, Bihor, and Timiş) from western Romania, were sampled for Neospora caninum antibodies using a commercial ELISA-kit. Seroprevalence values and risk factors for neosporosis (cow age, breed, herd size, farming system, previous abortion, and number of farm dogs) were examined using a generalized linear mixed model with a binomial distribution. Overall, the seroprevalence of N. caninum was 27.7% (104/376) with a prevalence of 27.9% (24/86) in Arad, 26.9% (25/93) in Bihor, and 27.9% (55/197) in Timiş. Of 25 cattle herds, 23 were seropositive with a prevalence ranging from 10.0 to 52.2%. No correlation was found between N. caninum seropositivity and age, breed, herd size, breeding system, and previous abortion. The number of farm dogs was the only factor (P Wald 5 0.03) positively associated with seroprevalence in cows and can be considered the risk factor in the acquiring of infection. The present work is the first regarding serological evidence of N. caninum infection in cattle from western Romania.

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supporting

confidence: 74%

mentioning

confidence: 91%

Serological Survey of Neospora caninum Infection in Cattle Herds From Western Romania

Imre¹,

Morariu²,

Ilie³

et al. 2012

Journal of Parasitology

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“…From this result it was assumed that risk factors supporting the introduction and spread of BVDV in cattle, such as high cattle density and frequent purchase of animals, also increase the risk of N. caninum infection. In an Italian study, a positive association between antibodies against bovine herpesvirus 1 (BHV-1) and antibodies against N. caninum was demonstrated (372). The possibility of whether BHV-1-induced immunosuppression after natural infection or vaccination could increase the susceptibility of cattle to secondary infection with N. caninum was discussed.…”

Section: Infection Riskmentioning

confidence: 99%

“…The possibility of whether BHV-1-induced immunosuppression after natural infection or vaccination could increase the susceptibility of cattle to secondary infection with N. caninum was discussed. However, to prove this hypothesis, experimental or follow-up studies after infection or vaccination are necessary (372). In a Canadian study of 78 dairy herds in Ontario, no significant association between antibodies against N. caninum and serostatus to Leptospira interrogans serovar Hardjo, Icterohaemorrhagiae, or Pomona was observed (343).…”

Section: Infection Riskmentioning

confidence: 99%

Epidemiology and Control of Neosporosis andNeospora caninum

2007

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SUMMARY Neospora caninum is a protozoan parasite of animals. Until 1988, it was misidentified as Toxoplasma gondii. Since its first recognition in dogs in 1984 and the description of the new genus and species Neospora caninum in 1988, neosporosis has emerged as a serious disease of cattle and dogs worldwide. Abortions and neonatal mortality are a major problem in livestock operations, and neosporosis is a major cause of abortion in cattle. Although antibodies to N. caninum have been reported, the parasite has not been detected in human tissues. Thus, the zoonotic potential is uncertain. This review is focused mainly on the epidemiology and control of neosporosis in cattle, but worldwide seroprevalences of N. caninum in animals and humans are tabulated. The role of wildlife in the life cycle of N. caninum and strategies for the control of neosporosis in cattle are discussed.

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“…Finally, the possibility of infection with Neospora caninum, a common pathogen that causes similar fetal brain lesions (Fig. 1C, 1D) 15 and has been identified serologically in coinfections with BHV-1, 18 was investigated in all cases.…”

Section: Introductionmentioning

confidence: 99%

Encephalitis in Aborted Bovine Fetuses Associated with Bovine Herpesvirus 1 Infection

et al. 2008

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Abstract. Brain tissue from 12 aborted bovine fetuses submitted to the Wisconsin Veterinary Diagnostic Laboratory revealed histologic lesions that consisted of glial nodules and variable degrees of mononuclear inflammation, microhemorrhage, neuronal necrosis, and cerebral cortical cavitation. A diagnosis of Bovine herpesvirus 1 (BHV-1) abortion had been made in all of these cases through multiple testing modalities. Brain tissue from 8 of the 12 fetuses was immunohistochemically stained with a monoclonal antibody specific to BHV-1, and, in 5 fetuses, there was positive intralesional staining of neurons, glial cells, and endothelial cells. This preliminary data suggested that herpesviral infection of brain tissue led to the described neurologic lesions. BHV-1 was then amplified from brain tissue in all 12 of the fetuses and was confirmed by partial sequencing of the thymidine kinase and glycoprotein C genes. To the authors' knowledge, neurologic lesions have not previously been described in BHV-1-infected fetuses, nor has BHV-1 previously been identified in bovine fetal brain tissue. The neurologic histopathology attributed to BHV-1 infection in these cases overlaps with the neurologic lesions produced by Neospora caninum, a common etiologic agent of bovine abortion. Therefore, when bovine fetal neurologic lesions are found, both etiologies should be considered and then distinguished by using additional diagnostic tools.

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Survey of Neospora caninum and bovine herpes virus 1 coinfection in cattle

Cited by 16 publications

References 24 publications

Serological Survey of Neospora caninum Infection in Cattle Herds From Western Romania

Serological Survey of Neospora caninum Infection in Cattle Herds From Western Romania

Epidemiology and Control of Neosporosis andNeospora caninum

Encephalitis in Aborted Bovine Fetuses Associated with Bovine Herpesvirus 1 Infection

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