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Welber Daniel Zanetti Lopes
Researcher at Universidade Federal de Goiás
Publications - 120
Citations - 1435
Welber Daniel Zanetti Lopes is an academic researcher from Universidade Federal de Goiás. The author has contributed to research in topics: Toxoplasma gondii & Biology. The author has an hindex of 19, co-authored 104 publications receiving 1139 citations. Previous affiliations of Welber Daniel Zanetti Lopes include University of São Paulo & Sao Paulo State University.
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Journal ArticleDOI
Toxoplasma gondii: Evidence for the transmission by semen in dogs
Tiago Pereira Arantes,Welber Daniel Zanetti Lopes,Roberta Machado Ferreira,J. S. P. Pieroni,Vanessa Marigo Rocha Pinto,Claudio Alessandro Massamitsu Sakamoto,Alvimar José da Costa +6 more
TL;DR: The results suggest that T. gondii can be sexually transmitted in domestic dogs and several T. Gondii cysts were detected in the brains of four offspring.
Journal ArticleDOI
Prevalence of anti-Toxoplasma gondii antibodies in dairy cattle, dogs, and humans from the Jauru micro-region, Mato Grosso state, Brazil.
Thais Rabelo dos Santos,Alvimar José da Costa,Gilson Hélio Toniollo,Maria Cecília Rui Luvizotto,A. H. Benetti,R. R. Santos,D. H. Matta,Welber Daniel Zanetti Lopes,João Ademir de Oliveira,Gilson Pereira de Oliveira +9 more
TL;DR: The first report to evaluate the seroprevalence of T. gondii in bovines from the Southwest region of the Mato Grosso state, Brazil is presented, posing a risk to the human population and other animals.
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Sexual transmission of Toxoplasma gondii in sheep
Welber Daniel Zanetti Lopes,Joana D’Ark Rodriguez,Fernando Andrade Souza,Thais Rabelo dos Santos,Ricardo Silva dos Santos,Walter Matheus Rosanese,Werik Renato Zanetti Lopes,Claudio Alessandro Massamitsu Sakamoto,Alvimar José da Costa +8 more
TL;DR: The sexual transmission of T. gondii in the sheep species with consequent vertical transmission to their lambs and the presence of the parasite in the "pool" of tissues from the five females that seroconverted after natural mating and from their respective lambs is demonstrated.
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Seroprevalence of and risk factors for Toxoplasma gondii in sheep raised in the Jaboticabal microregion, São Paulo State, Brazil.
Welber Daniel Zanetti Lopes,Thais Rabelo dos Santos,Ricardo dos Santos da Silva,Walter Matheus Rossanese,Fernando Andrade Souza,Joana D’Ark de Faria Rodrigues,Rafael Paranhos de Mendonça,Vando Edésio Soares,Alvimar José da Costa +8 more
TL;DR: Seroprevalence of and risk factors for toxoplasmosis in sheep from different properties in the Jaboticabal microregion, São Paulo State, Brazil were determined and T. gondii seropositivity in sheep was significantly associated with gender of the sheep, pasturing system, contact with cats, and the use of mineral supplements and the type of feed.
Journal ArticleDOI
Detection of Toxoplasma gondii oocysts in environmental samples from public schools
Thais Rabelo dos Santos,Cáris Maroni Nunes,Maria Cecília Rui Luvizotto,Anderson Barbosa de Moura,Welber Daniel Zanetti Lopes,Alvimar José da Costa,Katia Denise Saraiva Bresciani +6 more
TL;DR: The results of the present study strongly suggest that T. gondii oocysts are widely distributed in elementary public schools in the region that was evaluated, likely constituting the main contamination source for these children.