Meta-analysis of the prevalence and risk factors associated with bovine neosporosis

Ribeiro, Carla; Soares, Isabela Ribeiro; Mendes, Rodrigo Guerrero; Bastos, Paula Andrea de Santis; Katagiri, Satie; Zavilenski, Renato Bacarin; Abreu, Hudson Felipe Porto de; Afreixo, Vera

doi:10.1007/s11250-019-01929-8

Cited by 35 publications

(22 citation statements)

References 155 publications

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“…Dairy cattle were considered more susceptible to bovine neosporosis (OR = 1.6) than beef cattle (Ribeiro et al 2019 ). In Iran, the most reports of N. caninum infection were in dairy cattle with range of 3.8–76.2% (Binaei 2016 ; Noori et al 2019 ).…”

Section: Discussionmentioning

confidence: 99%

“…According to De Meerschman et al ( 2002 ) report, risk of abortion had a direct correlation with level of N. caninum -specific antibodies in the animals. The abortion risk in seropositive animals is estimated 1.6–26-fold higher than seronegative animals (Ribeiro et al 2019 ).…”

Section: Discussionmentioning

confidence: 99%

“…The risk of abortion due to neosporosis is estimated 14.3% in different regions (Reichel et al 2013 ). In addition, the risk of abortion in seropositive cows estimated 1.6–26 time higher than seronegative ones (Schares et al 2004 ; Razmi et al 2006 ; Ribeiro et al 2019 ; Lefkaditis et al 2020 ). Benavides et al ( 2012 ) reported the risk of abortion in beef cattle is low compared to dairy cattle.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, paralysis of jaw, atrophy, dysphagia, and heart failure are gradually observed (Barber and Trees 1996). The presence of infected dog in dairy farms is a risk factor for herd population (Gharekhani and Yakhchali 2019 ; Ribeiro et al 2019 ). Also, dogs commuting between farms and rural areas have an important impact in spreading of the infection.…”

Section: Discussionmentioning

confidence: 99%

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Neospora caninum infection in Iran (2004–2020): A review

2020

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Knowledge on neosporosis and associated risk factors in different species of animals are so important for designing the control programs and reduce the economic losses globally. This literature review targeted for evaluating the infection rate of Neospora caninum in animals in Iran. Until April 2020, all of published documents in the main English and Persian-language databases were searched. A total number of 110 documents (English = 85 and Persian = 25) were extracted. Most of reports were seroepidemiological studies using ELISA in Iranian cattle population. The range of Neospora infection was 3.8-76.2% in cattle, 0-54.6% in dogs, 0.9-9.9% in sheep, 6.2% in goats, 19.2-55.9% in buffaloes, 20-42.2% in horses, 52% in donkeys, 3.2-27% in camels, 14% and 19% in cats, and 0-20.4% in rodents. This rate in birds was 17.3% in chicken, 9.8% and 30.4% in pigeons, 2.8% and 3.7% in sparrows, and 9.9% in hooded crows. This is a comprehensive literature review on Neospora infection in Iran at the first time. The infection of N. caninum is widespread in Iran especially in dogs and cattle population. This review can provide baseline information for future research. Study on other hosts especially on wild and exotic animals is recommended for exact estimate of neosporosis in Iran. Investigations into molecular diagnosis and genotyping of N. caninum strains are also needed; this will be helpful for developing vaccines and finding the connection among wild and domestic cycles of disease. Education on the risk factors associated with N. caninum infection for is suggested farmers and rural public. Keywords Neospora caninum Á Neosporosis Á Animal Á Bird Á Risk factor Á Review article Á Iran

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Neospora caninum infection in Iran (2004–2020): A review

2020

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“…Dogs as definitive hosts of N. caninum can be associated to infection in cows, as the results of risk association tests confirmed, where cows from farms with dogs had 2.45 times more chances to be infected by N. caninum than cows from farms without dogs. Ribeiro et al (2019) showed that cattle from farms with dogs were 1.84 times more susceptible to infection by N. caninum than those from farms without dogs. In our study, the occurrence of 14% antibodies anti-N. caninum detected in the dogs was higher than that detected by Mascolli et al (2015) (7%) and Martins et al (2012) (6.1%).…”

Section: Discussionmentioning

confidence: 99%

Neospora caninum: soroepidemiologia de vacas e cães de propriedades leiteiras de Cunha, São Paulo, Brasil

Bastos

Martins

Sammi

et al. 2019

SCA

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Neosporosis, a parasitic disease prevalent worldwide, is caused by the protozoan Neospora caninum, an obligatory intracellular parasite that can cause abortions and infertility in females, resulting in high economic losses. The aim of this study was to determine the seroprevalence of antibodies against N. caninum in dairy cattle, and the occurrence of antibodies in dogs from farms in the municipality of Cunha, São Paulo, Brazil. Additionally, eighteen months after the primary study, an analysis to determine the incidence, seroconversion, and occurrence of anti-N. caninum antibodies was conducted in cows. Sampling was carried out in two phases: during the first one, 400 dairy cattle and 50 dog blood samples from 40 farms were collected. During the second phase, blood samples were collected from 119 cows belonging to 16 farms visited 18 months before. Serum samples were analyzed by indirect immunofluorescence (IFI) with titers ? 100 for cattle and ? 50 for dogs considered as positives. The occurrence of antibodies against N. caninum was 15.0% (60/400) and 14.0% (7/50) for cattle and dogs, respectively. After 18 months, the observed incidence of antibodies was 7.4% (4/54), the conversion detected was 71.4% (seropositive to seronegative) and 7.4% (seronegative to seropositive animals), and the observed occurrence was 7.56% (9/119). The calculated odds ratio (OR) was significant (p < 0.05) for abortions, presence of dogs, and parturition stalls. However, protection factors were identified in 2- to 4-year-old dairy cattle and in the number of lactating cows ? 10 animals. Thus, the presence of antibodies against N. caninum in the studied suggested both vertical and horizontal transmission are occurring in cattle.

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