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

Santos, Laura M. J. de F.; Damé, Maria Cecília Florisbal; Cademartori, Beatris Gonzales; Filho, Nilton Azevedo da Cunha; Farias, Nara Amélia da Rosa; Ruas, Jerônimo Lopes

doi:10.2478/s11686-013-0148-4

Cited by 19 publications

(13 citation statements)

References 26 publications

(21 reference statements)

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“…The distribution of seroprevalence according to gender showed no significant difference what is in agreement with the reports of Klun et al (2006) and Garcia et al (1999); however, those of Nematollahi and Moghddam (2008) showed that seropositivity is higher among males. The low antibody titer of 1:64 suggests that toxoplasmosis spreads in these farms in a latent form; it is similar to the findings of Santos et al (2013). However, the low titer obtained is adequate with the hypothesis regarding the rapid removal of cysts by cattle.…”

Section: Discussionsupporting

confidence: 76%

Sero-epidemiological survey on toxoplasmosis in cattle, sheep and goats in Algeria

Dechicha¹,

Bachi²,

Gharbi³

et al. 2015

Afr. J. Agric. Res.

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Toxoplasmosis is a parasitic disease with worldwide distribution and a major public health problem. In Algeria, human toxoplasmosis is screened in pregnant women and immunosuppressed persons; however, no information is available on the animal infection and a probable implication of the parasite in abortions occurring in the field. This sero-epidemiological cross-type survey on toxoplasmosis in cattle (

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Section: Discussionsupporting

confidence: 76%

Sero-epidemiological survey on toxoplasmosis in cattle, sheep and goats in Algeria

Dechicha¹,

Bachi²,

Gharbi³

et al. 2015

Afr. J. Agric. Res.

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“…Additionally, the presence of cats wandering in these raising locations is common. Thus, the possibility is real that herds raised in extensive systems, such as most herds in Pará state, are continuously exposed to oocysts excreted by these felids, thereby increasing the risk of infection during grazing (TENTER et al, 2000;SANTOS et al, 2013). Although this possibility is plausible among cattle herds raised extensively in the Amazon region, other researchers support the hypothesis that T. gondii infection tends to be more likely among animals raised in intensive or semi-intensive systems due to the closer contact between cattle and cats in the raising locations, with a consequent increased chance for exposure to T. gondii oocysts (ALBUQUERQUE et al, 2011).…”

Section: Resultsmentioning

confidence: 99%

Anti-Toxoplasma gondii antibodies in beef cattle slaughtered in the metropolitan region of Belém, Brazilian Amazon

Carmo

Morais

Lima

et al. 2017

Rev. Bras. Parasitol. Vet.

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The relevance of consuming raw or undercooked beef in the transmission of toxoplasmosis is unclear due to the high resistance of cattle to infection. However, this possibility needs to be considered in endemic areas, such as the Amazon, where the consumption of beef is frequent. The objective of this study was to determine the frequency of anti-Toxoplasma gondii IgG antibodies in beef cattle slaughtered in the metropolitan region of Belem, Pará state, Brazil. Blood samples were collected from 500 animals of both genders in a licensed slaughterhouse in Belém. Anti-T. gondii IgG antibodies were detected by an indirect immunofluorescence assay (IFA) with a cut-off titer of 1:64. Anti-T. gondii antibodies were found in 203 animals (40.6%), with a titer of 64 in 112 animals (55.2%), 128 in 68 animals (33.5%), 256 in 15 animals (7.4%), 512 in 5 animals (2.5%), and 1,024 in 3 animals (1.4%). No significant difference was observed between males and females (p > 0.05). The high frequency of anti-T. gondii antibodies observed in beef cattle slaughtered in Belém indicates that the meat of these animals may be an important source of infection for humans and carnivorous domestic animals when inadequately cooked beef is consumed.

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“…They used an in-house ELISA and the cut-off titer for IFAT was 1:40 [7]. In a report from southern Brazil, antibodies were found in 46 (27.2%) of 169 water buffaloes by IFAT; sera were run at 1:64 and 1:256 dilutions and the seropositivity results were based on a titer of 1:64 [8]. In a study in Argentina, researchers found T. gondii antibodies in 127 (25.4%) of 500 buffaloes by IFAT using a 1:100 cut off titer [9].…”

Section: Discussionmentioning

confidence: 99%

Seroprevalence of Toxoplasma gondii infection in water buffaloes (Bubalus bubalis) in Veracruz State, Mexico and its association with climatic factors

et al. 2014

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BackgroundInfection with Toxoplasma gondii in water buffaloes (Bubalus bubalis) is of epidemiological importance because of the risk for transmission to humans. We sought to determine the seroprevalence of T. gondii infection in 339 water buffaloes in Veracruz State, Mexico using the modified agglutination test (MAT, cut off 1:25). Seroprevalence association with general characteristics of buffaloes and their environment was also investigated.ResultsAntibodies to T. gondii were found in 165 (48.7%) of the 339 buffaloes with MAT titers of 1:25 in 104, 1:50 in 52, and 1:100 in 9. Bivariate analysis showed that seroprevalence of T. gondii infection was similar in buffaloes regardless of their general characteristics i.e., age, sex, and breed. In contrast, the seroprevalence in buffaloes varied significantly with environmental characteristics including altitude, mean annual temperature, and mean annual rainfall of the municipalities studied. Multivariate analysis showed that T. gondii seropositivity in buffaloes was associated with a mean annual rainfall between 1266–1650 mm (OR = 1.84; 95% CI: 1.15-2.94; P = 0.01).ConclusionsResults indicate that environmental characteristics may influence the seroprevalence of T. gondii infection in buffaloes. This is the first report on the seroprevalence of T. gondii infection in buffaloes in Mexico. Further research is needed to assess the risk for infection in humans associated with the ingestion of raw or undercooked meat from buffaloes infected with T. gondii.

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

Cited by 19 publications

References 26 publications

Sero-epidemiological survey on toxoplasmosis in cattle, sheep and goats in Algeria

Sero-epidemiological survey on toxoplasmosis in cattle, sheep and goats in Algeria

Anti-Toxoplasma gondii antibodies in beef cattle slaughtered in the metropolitan region of Belém, Brazilian Amazon

Seroprevalence of Toxoplasma gondii infection in water buffaloes (Bubalus bubalis) in Veracruz State, Mexico and its association with climatic factors

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