AVALIAÇÃO SOROLÓGICA DE Parainfluenzavirus Tipo 1, Salmonella spp., Mycoplasma spp. E Toxoplasma gondii EM AVES SILVESTRES

Marietto-Gonçalves, Guilherme Augusto; Almeida, Silvia Maria de; Camossi, Lucilene Granuzzio; Langoni, Hélio; Filho, Raphael Lúcio Andreatti

doi:10.5216/cab.v14i4.16576

Cited by 3 publications

(5 citation statements)

References 32 publications

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“…These few studies have mainly reported findings of anti-T. gondii antibodies in serum from captive birds, using the modified agglutination test (MAT). Marietto-Gonçalves et al (2013) used MAT to investigate anti-T. gondii antibodies (IgY) in serum from 71 adult blue-fronted Amazon parrots (Amazona aestiva) that had been rescued from illegal trade, and found a seropositivity rate of 9.8%, in contrast to the findings from the present study. Zhang et al (2014) used MAT to search for T. gondii antibodies in 311 birds, including budgerigars (Melopsittacus undulatus), lovebirds (Agapornis sp.)…”

Section: Resultscontrasting

confidence: 96%

Survey of Toxoplasma gondii, Neospora caninum and Sarcocystis neurona antibodies in wild red-tailed Amazon parrots (Amazona brasiliensis)

Sato

Vaz

Konell

et al. 2020

Rev. Bras. Parasitol. Vet.

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Toxoplasma gondii, Neospora caninum and Sarcocystis neurona are obligate intracellular parasites within the phylum Apicomplexa. The red-tailed Amazon parrot (Amazona brasiliensis) is a near-threatened species of psittacine that is endemic to the Atlantic Forest of Brazil and has been designated as a bioindicator because of its sensitivity to environmental qualitative status and changes. The aim of this study was to evaluate the presence of antibodies against T. gondii, N. caninum and S. neurona in wild red-tailed Amazon parrot nestlings on Rasa Island, Brazil. Blood samples were collected from 51 parrots and plasma samples were stored at – 20 °C until immunofluorescence antibody tests (IFAT) were performed. Antigen slides were prepared using tachyzoites of T. gondii (RH strain) and, N. caninum (NC-1 strain) and using merozoites of S. neurona (SNR37 strain). Plasma samples were tested at initial dilutions of 1:16 for T. gondii, 1:50 for N. caninum and 1:5 for S. neurona. An anti-chicken antibody conjugated with FITC was used as a secondary antibody at 1:50 dilution. No antibodies for any of these three protozoa were found, thus suggesting that these wild red-tailed Amazon parrot nestlings had not been exposed to these parasites.

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Section: Resultscontrasting

confidence: 96%

Survey of Toxoplasma gondii, Neospora caninum and Sarcocystis neurona antibodies in wild red-tailed Amazon parrots (Amazona brasiliensis)

Sato

Vaz

Konell

et al. 2020

Rev. Bras. Parasitol. Vet.

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“…Isolation of T. gondii in this bird of prey species has been reported in Minas Gerais state (Rêgo et al, 2018). Gonçalves et al (2013) had already reported the presence of T. gondii in this species, although it was in the central west region of the state of São Paulo.…”

mentioning

confidence: 76%

“…These results are important because the northwest region of the state of São Paulo is a major producer of poultry products and wild fauna can contribute to the maintenance of diseases for poultry (Gonçalves et al, 2013).…”

mentioning

confidence: 99%

“…Thus, monitoring the health of wild birds and mammals can contribute to the assessment of the presence of diseases of economic interest. Still, according to Gonçalves et al (2013), in the case of carnivorous birds, because they feed on previously contaminated prey (through indirect contact), they serve as "sentinel" birds with great potential for an epidemiological reading of the studied disease.…”

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confidence: 99%

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Detection of anti-Toxoplasma gondii antibodies in wild free-living birds and mammals from the northwest region of São Paulo state, Brazil

Castiglioni

Aires

Ferrari

et al. 2021

Braz. J. Vet. Res. Anim. Sci.

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Toxoplasmosis is a protozoonosis caused by an obligate intracellular parasite named Toxoplasma gondii, which can infect humans and a large number of homeothermic animal species with worldwide distribution. The present study aimed to detect anti T. gondii antibodies from serological samples of free living wild animals from the northwest region of São Paulo state, Brazil. Thirty-two samples (eight from birds and 24 from mammals) were analyzed by the modified agglutination test (MAT) using 5 cut-off points for birds and 25 for mammals. Seropositivity was observed in 25% (2/8) of birds, including the species Rupornis magnirostris (roadside hawk) and Caracara plancus (southern caracara), and 29.2% (7/24) animals were seropositive among mammals, including one hoary fox (Lycalopex vetulus), two maned wolves (Chrysocyon brachyurus), one black howler monkey (Alouatta caraya), two crab-eating foxes (Cerdocyon thous) and one gray brocket deer (Mazama gouazoubira). The results obtained with the present study indicate the exposure to T. gondii of free-living wild animals from the northwest region of São Paulo state and, therefore, that they probably play a role in the transmission and maintenance of T. gondii in the environment they inhabit. Thus, identification of the infection in several animal species in the region indicates the environmental contamination of the area. Studies of this nature may help to understand the importance of the prevention and control of this disease in Brazil.

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“…Fetal toxoplasmosis has been reported in parrots in Australia and New Zealand, psittacines in America, and budgerigars in Switzerland and the Netherlands (Dubey et al, 2004;Ferreira et al, 2012;Howe et al, 2014). In Brazil, the anti-T. gondii antibodies (IgY) were found in the serum of 71 adult blue-fronted Amazon parrots with a seropositivity rate of 9.8% (Marietto-Gonçalves et al, 2013). Besides, Andrade et al (2016) serologically examined 67 different psittacine species and found anti-T. gondii antibodies in 1.3% of the examined birds.…”

Section: Toxoplasmosis In Pet Birdsmentioning

confidence: 99%

A Highlight on Avian Toxoplasmosis: One Health Disease with a Special Reference to the Current Egyptian Situation

El-Ghany¹

2021

WVJ

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This review article was developed to the infection of avian species with Toxoplasma gondii (T. gondii), diagnosis, pet bird and human infection, and control methods with a special reference to the current status of infection among the Egyptian poultry farms and population. Toxoplasmosis is a zoonotic disease caused by a unicellular, protozoan parasite T. gondii. Different domesticated and wild animals, as well as birds can harbor T. gondii and may be a potential source of infection to humans. Avian species could be infected with T. gondii through the ingestion of contaminated food, soil, and water with oocysts shed in the excreta of infected animals, especially cats. Poor sanitation and hygienic conditions increase the risk of infection. Consumption of food or water, as well as undercooked poultry meat or meat products containing the oocysts of the parasite, are the main sources of human infection with T. gondi. Diagnosis of T. gondii in the infected host depends on the serological detection of specific antibodies and molecular detection of the parasite. Microscopic demonstration of the oocysts and other developmental stages of the parasite in the intestine, liver, brain, and skeletal muscles tissues is another means for rapid diagnosis. Generally, a high prevalence of the disease is also reported in pet birds. Toxoplasmosis in humans is associated with abortion, congenital disorders, stillbirth, and other complications, especially in immunocompromised patients. Application of hygienic measures, as well as public awareness, are essential for the prevention and control of toxoplasmosis. In different Egyptian governorates, a high prevalence of T. gondii has been detected in animals, birds, and humans. High incidence of infection was recorded due to the contact with Toxoplasma oocysts shed mainly from infected cats or other carriers. Egyptian chicken and turkey flocks and backyard birds revealed the presence of different developmental stages of the parasite and even its antibodies. In addition, human populations showed signs of toxoplasmosis with severe complications.

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AVALIAÇÃO SOROLÓGICA DE Parainfluenzavirus Tipo 1, Salmonella spp., Mycoplasma spp. E Toxoplasma gondii EM AVES SILVESTRES

Cited by 3 publications

References 32 publications

Survey of Toxoplasma gondii, Neospora caninum and Sarcocystis neurona antibodies in wild red-tailed Amazon parrots (Amazona brasiliensis)

Survey of Toxoplasma gondii, Neospora caninum and Sarcocystis neurona antibodies in wild red-tailed Amazon parrots (Amazona brasiliensis)

Detection of anti-Toxoplasma gondii antibodies in wild free-living birds and mammals from the northwest region of São Paulo state, Brazil

A Highlight on Avian Toxoplasmosis: One Health Disease with a Special Reference to the Current Egyptian Situation

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