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Quantitative and molecular analysis of noroviruses RNA in blood from children hospitalized for acute gastroenteritis in Belém, Brazil
(Elsevier, 2013)Background: Noroviruses (NoVs) are a common cause of acute gastroenteritis (AGE) and until now, littleis known about its ability to spread outside the gut. Objectives: We aim to investigate the role of NoVs causing viremia ... -
Re-emergence of a coxsackievirus A24 variant causing acute hemorrhagic conjunctivitis in Brazil from 2017 to 2018
(Springer Verlag, 2019)A large outbreak (over 200,000 cases) of acute hemorrhagic conjunctivitis (AHC) took place in Brazil during the summer of 2017/2018, seven years after a nationwide epidemic, which occurred in 2011. To identify the etiological ... -
Reactions to rubella vaccine and persistence of antibody in virgin-soil populations after vaccination and wild-virus-induced immunization
(Oxford University Press, 1976)Vaccination of two virgin-soil (without historical or serological evidence of past infection) populations of Amazon lndians with RA 27/3 rubella vaccine was followed by rever of > 100 F in 10% of the vacinees and by ... -
Reanálise da vacina tetravalente (RRV-TV) no contexto da prevenção das gastrenterites por rotavírus
(Instituto Evandro Chagas, 2010)Os rotavírus são considerados a principal causa de gastrenterite grave em crianças abaixo de cinco anos, principalmente nos países em desenvolvimento. A vacinação nos primeiros meses de vida se constitui na medida mais ... -
Reappraisal of the Peruvian and Brazilian lower titer tetravalent rhesus-human reassortant rotavirus vaccine efficacy trials: analysis by severity of diarrhea.
(Lippincott, Williams & Wilkins, 1999)Objectives and methods. With the purpose of better understanding the efficacy of the lower titer [4 Î 104 plaque-forming units (pfu)] tetravalent rhesus-human reassortant rotavirus vaccine (RRV-TV) against diarrheal episodes ... -
Regulation of the immune checkpoint indoleamine 2,3-dioxygenase expression by Epstein–Barr Virus
(MDPI, 2021)Epstein–Barr virus (EBV) is an oncovirus ubiquitously distributed and associated with different types of cancer. The reason why only a group of infected people develop cancer is still unknown. EBV-associated cancers represent ... -
Reinfecções por rotavírus em crianças de Belém, Pará, Brasil
(Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo, 1986)Reinfecções por rotavírus foram detectadas em 7 (9,2%) de 76 crianças habitantes da periferia de Belém, Pará, Brasil, no decurso de seus primeiros 20 meses de vida. A presença de rotavírus classificados no subgrupo II ... -
Reinfections and rotavirus serotypes in Belém, Brazil (preliminary report)
(Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo, 1988)Repeated infections involving different rotavirus serotypes were detected in four children living in Belém, who were followed up since birth to three years of age. In one child (Reg. 23.983) three successive symptomatic ... -
Replicação de sendai virus em células epiteliais primárias de camundongo
(Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo, 1987)Células epiteliais primárias obtidas do trato respiratório de camundongos jovens foram infectadas com o Vírus Hemaglutinante do Japão (HVJ, Sendai Virus) e, a progénie viral, tratada ou não com tripsina foi titulada através ... -
Retrospective molecular analysis of norovirus recombinant strains in the amazon region, Brazil
(Elsevier, 2021)Background: Noroviruses are enteric viruses that cause acute gastroenteritis worldwide. Over two decades, GII.4 genotype was responsible for most cases. However, recombinant strains have emerged and changed the epidemiological ... -
Rotavirus A in wild and domestic animals from areas with environmental degradation in the Brazilian Amazon
(Public Library of Science, 2018)Acute gastroenteritis is one of the main causes of mortality in humans and young animals. Domestic and mainly wild animals such as bats, small rodents and birds are highly diversified animals in relation to their habitats ... -
Rotavirus analyses by SYBR Green real-time PCR and microbiological contamination in bivalves cultivated in coastal water of Amazonian Brazil
(IWA Publishing, 2018)The contamination of mussels and oysters by viruses and bacteria is often associated with water contamination and gastroenteritis in humans. The present study evaluated viral and bacterial contamination in 380 samples, ... -
Rotavirus antigenemia as a common event among children hospitalised for severe, acute gastroenteritis in Belém, northern Brazil
(BioMed Central, 2019)Background: Rotavirus antigenemia and RNAemia (the presence of rotavirus RNA in serum) have been commonly identified among paediatric patients with acute gastroenteritis. In this study we examined the association ... -
Rotavirus G and P types in children from Belém, northern Brazil, as determined by RT-PCR: occurrence of mixed P type infections
(International Centre for Diarrhoeal Disease Research Bangladesh, 1998)Fifty-four group A rotavirus-positive stool samples, obtained from children aged less than three years during a longitudinal (December 1982 to March 1986) study in Belém, Brazil, were re-examined. The samples were tested ... -
Rotavirus G serotypes and P[], G genotypes identified in cases of reinfection among children participating in a trial with rhesus-human reassortan tetravalent vaccine (RRV-TV) in Belém, Brazil
(Oxford University Press, 2002)Group A rotaviruses are the most important agents of severe diarrhea in children and infants worldwide. The aim of present study was to identify rotavirus G serotypes and P[],G genotypes in cases of reinfection among ... -
Rotavirus gastroenteritis in Latin America: a hospital-based study in children under 3 years of age
(Elsevier, 2012)Rotavirus is the leading cause of severe diarrheal disease and dehydration in infants in both developed and developing countries. Vaccines have recently been developed, but detailed epidemiological information, which is ... -
Rotavirus infection in Brazil: epidemiology and challenges for control
(Escola Nacional de Saúde Pública, 2000)Resumo Os rotavírus causam de 600.000 a 870.000 óbitos por ano entre crianças em todo o mundo. Esses vírus foram visualizados pela primeira vez no Brasil em 1976, a partir da microscopia eletrônica das fezes de crianças ... -
Rotavirus infection in Brazil: epidemiology, immunity and potential for vaccination
(Elsevier, 1997)Worldwide, it is estimated that rotaviruses cause more than 125 million diarrheal episodes and nearly 1 million deaths per year among infants and young children. In Brazil, these agents have been associated with 13%-40% ... -
Rotavirus infection in wild marsupials (Didelphis marsupialis) of the Amazon region
(Oxford University Press, 1986)Rotavirus was detected by enzyme-linked immunosorbent assay in faecal specimens collected from two (1.35%) of 148 marsupials trapped in the Amazon jungle environment. The positive samples were both from the "common opossum", ...