Rodrigo Alessandro Tôgo Santos's research while affiliated with Universidade Federal de Goiás and other places

Publications (10)

Article
Full-text available
This was a prospective study that included women seen in the obstetrics and gynecology sector of Hospital das Clínicas, Federal University of Goiás, in Goiânia, State of Goiás, with the aim of detecting rotaviruses, adenoviruses, caliciviruses and astroviruses. Eighty-four women participated in the study and from these, 314 fecal samples were colle...
Article
Full-text available
Out of 1,588 faecal samples of children taken from three locations of the Central West Region of Brazil, 57 were positive for astroviruses (HAstVs) using reverse transcription-polymerase chain reaction (RT-PCR). They were genotyped by nested RT-PCR and/or genomic sequencing. HAstV-1 (42.8%), HAstV-2 (23.2%), HAstV-3 (3.6%), HAstV-4 (14.3%) and HAst...
Article
Full-text available
We analyzed fecal samples from hospitalized children up to three years of age with acute gastroenteritis at Campo Grande, Mato Grosso do Sul, Brazil, from May 2000-January 2004. Astrovirus and calicivirus were detected by Reverse Transcription-Polymerase Chain Reaction and adenovirus was detected using the Rotavirus and Adenovirus combined immunoen...
Article
Full-text available
Através da eletroforese em gel de poliacrilamida e do ensaio imunenzimático combinado para rotavírus e adenovirus, foram analisadas 380 amostras fecais de crianças com até 3 anos, hospitalizadas com diarréia aguda, entre maio de 2000 e janeiro de 2004, em Campo Grande, MS. Do total de amostras, 88 (23,2%) foram positivas para Rotavirus A. Dentre es...
Article
Polyacrylamide gel electrophoresis and combined immunoenzyme assay for rotavirus and adenovirus were used to analyze 380 fecal samples from children up to three years of age who were hospitalized with acute diarrhea in Campo Grande, State of Mato Grosso do Sul, between May 2000 and January 2004. Among all the samples, 88 (23.2%) were positive for R...
Article
Full-text available
This study presents data regarding the circulation of astrovirus in Goiânia-GO and Brasília-DF. These viruses were detected in fecal samples from hospitalized children up to five years old with and without acute gastroenteritis. A total of 1244 fecal samples were collected in two periods, 1994 to 1996 (Brasília) and 1998 to 2002 (Goiânia and Brasíl...
Article
Full-text available
This study presents data regarding the circulation of astrovirus in Goiânia-GO and Brasília-DF. These viruses were detected in fecal samples from hospitalized children up to five years old with and without acute gastroenteritis. A total of 1244 fecal samples were collected in two periods, 1994 to 1996 (Brasília) and 1998 to 2002 (Goiânia and Brasíl...
Article
Full-text available
To identify rotavirus A and the most prevalent G and P genotypes in children with acute diarrhea, and to the describe the occurrence of rotavirus infection and reinfection. Group A rotavirus specimens were obtained from fecal samples from children with acute diarrhea in Goiânia, state of Goiás, Brazil from July 2000 to October 2002. Rotavirus A pos...

Citations

... Rotaviruses A and Adenoviruses are among the most commonly recognized causes of epidemic viral acute gastroenteritis worldwide 10 . The Rotavirus A are considered the major etiological agent of acute diarrhea in infants and young children 11 . There is a tendency to seasonality in temperate areas for Rotavirus infection, with peaks occurring predominantly in winter, but outbreaks can occur throughout the year in tropical areas 12,13 . ...
... Acute gastroenteritis is one of the leading causes of morbidity and mortality in developing countries such as Nepal [1][2][3][4][5][6]. Usually, gastroenteritis caused by enteric viruses: group A rotaviruses (RVAs), noroviruses (NoVs), astroviruses, and adenoviruses (AdVs) 40 and 41 comprise a significant proportion of gastroenteritis cases in developed as well as in developing countries [7,8]. Enteric viruses are a group of viruses that can cause acute watery diarrhea and are a major threat to human health worldwide [9]. ...
... Continuing viral gastroenteritis surveillance has been conducted in Brazil by the Adolfo Lutz Institute since the 1980's (Timenetsky et al., 1993;Carmona et al., 2006;Morillo et al., 2008;Luchs et al., 2011;Cilli et al., 2011;Morillo et al., 2018;Luchs et al., 2019). Although HAdV have been proven to play an important role in diarrhea disease burden, Brazilian studies aiming to conduct their molecular characterization are unusual even in current times (Gomes et al., 1989;Ferreira et al., 2010;Reis et al., 2016;Costa et al., 2017;Primo et al., 2018;). Moreover, in 2006, Rotarix® vaccine (attenuated monovalent G1P[8] vaccine) was included into the Brazilian's National Immunization Program with a significant impact on the rotavirus disease burden in the country (Carvalho-Costa et al., 2019), and the possibility of emerging enteric pathogens vaccine-induced selective pressure has been speculated, including HAdV (Koo et al., 2013;Primo et al., 2018). ...
... Classical HAstV strains have been the subject of several studies in Brazil since the mid-1990s [7][8][9][10][11][12][13][14][15][16][17], including studies in which the northern region of the country was treated as a single unit [7,[18][19][20]. However, this seems to be the first molecular study of classical HAstV strains specifically from the state of Tocantins. ...
... Previous studies have shown the importance of HAdV in acute gastroenteritis and its distribution in Brazil in both the pre-and post-RVA vaccine era, but very few of them conducted molecular characterization of HAdV-positive samples [5,[20][21][22][23][24][25][26][27][28]. Brazil is a country with continental dimensions with different climatic zones and geographically distinct populations; therefore, a high degree of viral genetic diversity is expected to be found in this country. ...
... Studies conducted in the Brazilian Mid-West have shown a temporal variation in the predominance of certain G and P genotypes, characterizing the occurrence of an antigenic shift (Cardoso et al., 2000, Souza et al., 2003, Costa et al., 2004, Andreasi et al., 2007, Munford et al., 2009, Borges et al., 2011, Almeida et al., 2015. ...