Occurrence of anti-Neospora caninum antibodies in water buffaloes (Bubalus bubalis) from the Northern region of Brazil

Gennari, Solange Maria; Rodrigues, Aline; Viana, Rinaldo Batista; Cardoso, Elyzabeth da Cruz

doi:10.1016/j.vetpar.2005.05.064

Cited by 38 publications

(18 citation statements)

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“…Antibodies titers detected in seropositive animals ranged from 100 (cutoff) to 800: 100 (50%), 200 (25%), 400 (13.6%), and 800 (11.4%). Previous studies in the state of Pará have reported a seroprevalence of N. caninum ranging from 40.9% [17] to 70.15% [18] among buffaloes. On the other hand, a seroprevalence of 36.5% of N. caninum has been found among buffaloes from the state of Bahia [3].…”

Section: Resultsmentioning

confidence: 99%

Prevalence Survey of Selected Bovine Pathogens in Water Buffaloes in the North Region of Brazil

Silva

Santos

Castro

et al. 2014

Journal of Parasitology Research

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Although the largest buffalo herd in the occident is in the north region of Brazil, few studies have been conducted to assess the prevalence of selected parasitic diseases in buffalo herd. The present study was therefore conducted to investigate the epidemiological of Toxoplasma gondii, Neospora caninum, Anaplasma marginale, Babesia bigemina, and Babesia bovis in water buffaloes in the north region of Brazil. A total of 4796 buffalo blood samples were randomly collected from five provinces and simultaneously analyzed by the IFAT and ELISA. The serological prevalence of T. gondii and N. caninum was 41.3% and 55.5% in ELISA and 35.7% and 48.8% in IFAT, respectively. The overall prevalence of A. marginale, B. bovis, and B. bigemina was 63%, 25%, and 21% by ELISA and 50.0%, 22.5%, and 18.8% by IFAT, respectively. This study shows valuable information regarding the serological survey of selected bovine pathogens in water buffaloes in the north region of Brazil which will likely be very beneficial for the management and control programs of this disease.

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Section: Resultsmentioning

confidence: 99%

Prevalence Survey of Selected Bovine Pathogens in Water Buffaloes in the North Region of Brazil

Silva

Santos

Castro

et al. 2014

Journal of Parasitology Research

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“…However, despite the high occurrence values, no reproductive disorders were reported in those groups (FUJII et al, 2001a, b;GENNARI et al, 2005;GONDIM et al, 2007) Sheep: Seroprevalences ranged from 1.8% to 64.2% (Table 6). Some surveys stated as risk factors: abortion in the flock, presence of dogs, extensive husbandry systems and breed of the sheep.…”

Section: Epidemiologymentioning

confidence: 99%

All about neosporosis in Brazil

Cerqueira‐Cézar

Calero‐Bernal

Dubey

et al. 2017

Rev. Bras. Parasitol. Vet.

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Neospora caninum is protozoan parasite with domestic and wild dogs, coyotes and grey wolves as the definitive hosts and many warm-blooded animals as intermediate hosts. It was cultivated and named in 1988. Neosporosis is a major disease of cattle and has no public health significance. Since 1990's N. caninum has emerged as a major cause of abortion in cattle worldwide, including in Brazil. N. caninum also causes clinical infections in several other animal species. Considerable progress has been made in understanding the biology of N. caninum and there are more than 200 papers on this subject from Brazil. However, most of the reports on neosporosis from Brazil are serological surveys. Overall, little is known of clinical neosporosis in Brazil, particularly cattle. The few reports pertain to sporadic cases of abortion with no information on epidemics or storms of abortion. The objective of the present review is to summarize all reports from Brazil and suggest topic for further research, including prevalence of N. caninum oocysts in soil or in canine feces, and determining if there are additional definitive hosts, other than the domestic dog. There is need for a national survey in cattle using defined parameters. Future researches should focus on molecular characterization of N. caninum strains, possibility of vaccine production and relationship between wildlife and livestock epidemiology.Keywords: Neospora caninum, neosporosis, domestic animals, wild animals, Brazil. ResumoNeospora caninum é um protozoário parasita que possui os canídeos domésticos e selvagens, coiotes e lobos cinzentos como hospedeiros definitivos e vários animais de sangue quente como hospedeiros intermediários. Foi cultivado e nomeado em 1988. A neosporose é uma das principais doenças em bovinos e não tem significância em saúde pública. Desde 1990, N. caninum tem emergido como uma das principais causas de aborto em bovinos em todo o mundo, inclusive no Brasil. N. caninum também causa infecções clínicas em várias outras espécies animais. Consideráveis avanços foram feitos na compreensão da biologia desse parasita e há mais de 200 trabalhos sobre o assunto no Brasil. No entanto, a maioria dos relatos de neosporose do Brasil são relacionados a sorologia. Em geral, pouco se sabe sobre a neosporose clínica no Brasil, particularmente em bovinos. Os poucos relatos referem-se a casos esporádicos de aborto sem informações sobre epidemias ou surtos de aborto. O objetivo da presente revisão é resumir todos os relatos sobre N. caninum no Brasil e sugerir tópicos para pesquisas futuras, incluindo a prevalência de oocistos de N. caninum no solo ou em fezes caninas e determinar se há hospedeiros definitivos adicionais, exceto o cão doméstico no país. Uma pesquisa nacional em bovinos usando parâmetros definidos seria de grande importância. Pesquisas futuras deveriam ser focadas na caracterização de cepas de N. caninum, possibilidade de produção de vacinas e a relação epidemiológica entre a vida selvagem e o gado.Palavras-chave: Neospora caninum, neospo...

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“…Antibodies against N. caninum and T. gondii have been show in buffaloes in various countries, nevertheless in Southern Brazil the evidence of these protozoa are still scarce. Seroprevalence studies for N. caninum in buffaloes showed a positivity ranging from 1.5% to 70.9% and are described in southeastern and northern region of Brazil (Fujii et al 2001, Gennari et al 2005, Argentina (Campero et al 2007, Konrad et al 2013, Egypt (Dubey et al 1998), India (Meenakshi et al 2007), Vietnam (Huong et al 1998), and Italy (Guarino et al 2000). Seroprevalence to T. gondii are described in Brazil (Silva et al 2010), Argentina (Konrad et al 2013), Vietnan (Huong et al 1998), Iran (Navidpour & Hoghooghi-Rad 1998), and India (Sharma et al 2008) with the seropositivity ranging from 1.1% to 25.4%.…”

Section: Introductionmentioning

confidence: 98%

Antibodies against Neospora caninum, Sarcocystis spp. and Toxoplasma gondii detected in buffaloes from Rio Grande do Sul, Brazil

et al. 2016

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ABSTRACT.-Portella L.P., Cadore G.C., Lima M., Sangioni L. The presence of antibodies against Neospora caninum, Sarcocystis spp. and Toxoplasma gondii was evaluated in buffaloes (Bubalus bubalis) from Rio Grande do Sul state (RS), southern Brazil. Serum samples (n=220) were analyzed for antibodies by indirect fluorescent antibody test (IFAT). Antibody presence was considered when the titers were equal or higher than 100 for these protozoa. A total of 60.5% (133/220) buffalo serum samples were positive for at least one of the protozoa evaluated in this study. Antibodies for N. caninum, Sarcocystis spp. and T. gondii were found in 36.4% (80/220), 25.5% (56/220) and 16.8% (37/220) of the buffaloes respectively, indicating a higher frequency of N. caninum infection (p=0.0133). The IFAT is a suitable method to diagnose N. caninum, Sarcocystis spp. and T. gondii infection in buffaloes for detecting IgG antibodies. This study demonstrates the presence of these three protozoa in buffalo herds in RS, Brazil, which may be source of infection to other animals. The high frequency of animals positive for N. caninum is important and could be related to reproductive problems. Additionally, the presence of Sarcocystis spp. and T. gondii in buffaloes can be a possible public health issue.

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Occurrence of anti-Neospora caninum antibodies in water buffaloes (Bubalus bubalis) from the Northern region of Brazil

Cited by 38 publications

References 10 publications

Prevalence Survey of Selected Bovine Pathogens in Water Buffaloes in the North Region of Brazil

Prevalence Survey of Selected Bovine Pathogens in Water Buffaloes in the North Region of Brazil

All about neosporosis in Brazil

Antibodies against Neospora caninum, Sarcocystis spp. and Toxoplasma gondii detected in buffaloes from Rio Grande do Sul, Brazil

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