Anticorpos IgG anti-Neospora caninum e Toxoplasma gondii em búfalas (Bubalus bubalis) criadas no estado do Pará

Silva, Sandro P.; Mota, Rinaldo Aparecido; Faria, E. B.; Fernandes, Erika Fernanda Torres Samico; Neto, Orestes L. Souza; Albuquerque, Pedro Paulo Feitosa de; Dias, Hilma Lúcia Tavares

doi:10.1590/s0100-736x2010000500012

Cited by 17 publications

(18 citation statements)

References 18 publications

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“…Previous results in Brazil and other countries have indicated lower prevalence of T. gondii in bovines (no more than 4%, as reported by Huong et al 1998;Gondim et al 1999;Fujii et al 2001 andSilva et al 2010, which is in contrast to the results reported here. The reason for such a discrepancy may be due to the fact that changes in feline populations are occurring in the area under study.…”

Section: Resultscontrasting

confidence: 99%

Occurrence of antibodies to Toxoplasma gondii in water buffaloes and meat cattle in Rio Grande do Sul State, southern Brazil

Santos

Damé

Cademartori

et al. 2013

Acta Parasitologica

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Serum samples from 169 water buffaloes and 121 beef cattle were analyzed for antibodies to T. gondii by an indirect fluorescent antibody test (IFAT). Positive results were obtained in 27.2% of water buffaloes and 17.4% of cattle. Statistical analysis indicated significant differences between the prevalence in cattle and buffalo (p ≤ 0.05). The highest titres found in positive animals were 1:256 (buffaloes) and 1:64 (cattle). In both bovine species, toxoplasmosis frequency in young animals (less than 2 years old) was lower compared to older individuals, although the differences seen in cattle were not statistically significant.

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Section: Resultscontrasting

confidence: 99%

Occurrence of antibodies to Toxoplasma gondii in water buffaloes and meat cattle in Rio Grande do Sul State, southern Brazil

Santos

Damé

Cademartori

et al. 2013

Acta Parasitologica

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“…In Brazil, N. caninum infection was detected in cattle, sheep, goats, and buffaloes (AGUIAR et al, 2005;VOGEL et al, 2006;VARASCHIN et al, 2011), and in buffalo and cattle, in particular, in the state of Pará (MINERVINO et al, 2007;SILVA et al, 2010). However, there is no record of its occurrence among dairy cattle in the southeast region of this state, which is the most important dairy region (FREITAS, 2001) and new agricultural frontier in the Amazon.…”

Section: Introductionmentioning

confidence: 99%

Serological survey of Neospora caninum in dairy herds from Parauapebas, State of Pará

et al. 2015

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Neospora caninum is a coccidian protozoan that affects cattle worldwide causing economic losses. To survey the frequency of anti-N. caninum antibodies in dairy herds in the municipality of Parauapebas, Southeast of Pará, samples of 465 sera from 45 farms were subjected to indirect immunofluorescence assay (cutoff 1:100). Anti-N. caninum antibodies were found with a frequency of 13,33% with the following titer distribution: 27 (43,55%) for titer 100; 14 (22,58%) for 200; 16 (25,80%) for 400, and 5 (8,07%) for 800; no serum titers more than 800 was noted, but at least one positive animal was present in most farms. The highest frequency occurred among females, with no significant difference in frequency between the sexes (Fisher exact test = 0,59, P = 0,99); 2-year-old animals had the highest frequency, although their numbers were lesser than those aged >5 years, with no significant difference in frequency between the age groups (χ 2 = 2,1, P = 0,71). No significant difference was observed between the frequency and occurrence of abortion (χ 2 = 2,3, P = 0,13) and frequency and presence of dogs in the farms (χ 2 = 0,26, P = 0,60). Actions toward health monitoring are recommended to prevent the entry of new sources of N. caninum and to control its spread within herds.

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“…Given that unpasteurized buffalo milk and meat when consumed inadequately cooked from infected animals is a potential source of human toxoplasmosis (Lundén & Uggla 1992, Dehkordi et al 2013. In Brazil, States of the Bahia (Gondim et al 1999), Pará (Silva et al 2010) and São Paulo (Souza et al 2001) found that 3.8% (4/104), 1.1% (4/374) and 49.9% (205/411) of the buffaloes had antibodies to T. gondii respectively, lower results compared to 16.8% (37/220) of the buffaloes reported in this study. Similar results were described in Iran with 14.3% of the buffaloes seropositive to T. gondii (Hamidinejat et al 2010).…”

Section: Resultsmentioning

confidence: 99%

“…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%. Studies showing the seroprevalence for Sarcocystis spp.…”

Section: Introductionmentioning

confidence: 97%

“…However, the effects of these diseases in buffaloes are less deleterious than in bovine (Michelizzi et al 2010). Sarcocystis spp., Neospora caninum and Toxoplasma gondii are Apicomplexa protozoa that have worldwide distribution and require an intermediate and a definitive host to complete the life cycle and also have been reported in buffaloes (Dubey et al 1998, Silva et al 2010, Konrad et al 2013. Ruminants can be infected by these parasites through ingesting of the sporocysts or sporulated oocysts present in food or water (Dubey & Lindsay 2006).…”

Section: Introductionmentioning

confidence: 99%

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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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Anticorpos IgG anti-Neospora caninum e Toxoplasma gondii em búfalas (Bubalus bubalis) criadas no estado do Pará

Cited by 17 publications

References 18 publications

Occurrence of antibodies to Toxoplasma gondii in water buffaloes and meat cattle in Rio Grande do Sul State, southern Brazil

Occurrence of antibodies to Toxoplasma gondii in water buffaloes and meat cattle in Rio Grande do Sul State, southern Brazil

Serological survey of Neospora caninum in dairy herds from Parauapebas, State of Pará

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

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