Group A rotavirus and norovirus display sharply distinct seasonal profiles in Belém, northern Brazil

Siqueira, Jones Anderson Monteiro; Linhares, Alexandre da Costa; Gonçalves, Maryelle dos Santos; Carvalho, Thaís Cristina Nascimento de; Justino, Maria Cleonice Aguiar; Mascarenhas, Joana D’Arc Pereira; Gabbay, Yvone Benchimol

doi:10.1590/s0074-02762013000500020

Cited by 13 publications

(10 citation statements)

References 23 publications

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“…This phenomenon, which has already been described in other studies, is known as the "see-saw effect". 23 The diarrhea, vomiting and fever symptoms found in the cases analyzed are in agreement with the main clinical aspects of norovirus infection described by Abugalia et al 25 and Sai el al. 26 The duration time of sporadic case symptoms found by us is in agreement with the data obtained by Lopman et al 2 and Robilotti et al: 27 according to whom mean symptom duration was two to four days.…”

Section: Discussionsupporting

confidence: 90%

“…9,10,18,20 Studies conducted in different regions of Brazil have characterized infection in the same way as the findings of our study: norovirus had been identified as the etiological agent of viral gastroenteritis in childhood, with incidence in different periods of the year, having diarrhea and vomiting as the main symptoms. 8,9,11,22,23 Ribeiro et al 8 studied hospitalized children in a care center in Vitória, Espírito Santo, and noted the occurrence of norovirus cases at different times of the year. In the study conducted by Andrade et al, 11 the authors state that norovirus infection mainly occurred in winter and spring months, contrary to our findings, which may indicate the influence of climate on norovirus seasonality.…”

Section: Discussionmentioning

confidence: 99%

“…Ferreira et al 9 detected higher incidence in children under two years old attending a daycare center in Rio de Janeiro. Siqueira et al 23 reported lack of vaccine against the virus, the impossibility of diagnosing coinfection, since the test for norovirus is done when the rotavirus test result is negative, as well as reporting undefined norovirus seasonality.…”

Section: Discussionmentioning

confidence: 99%

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Norovírus no município de São Paulo, 2010-2016: estudo transversal sobre a principal causa de gastroenterite infantil*

Kamioka

Madalosso²,

Pavanello³

et al. 2019

Epidemiologia e Serviços de Saúde

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Objective: to describe cases of acute diarrheal disease caused by norovirus in children under 5 years old in São Paulo city, Brazil. Methods: this was a cross-sectional study using data from Epidemiological Surveillance of Gastroenteritis due to Rotavirus; cases were defined as patients hospitalized in a sentinel unit because of acute diarrheal disease and laboratory identification of norovirus as the etiological agent between 2010 and 2016. Results: during the study period, the proportion of norovirus cases in children under 5 years old exceeded the proportion of Rotavirus, an agent considered predominant in childhood; norovirus was associated with 28.4% of total reported cases, occurring all year round, especially in warmer months. Conclusion: norovirus was the leading etiological agent identified in children under 5 years old with acute diarrheal disease in São Paulo city.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Norovírus no município de São Paulo, 2010-2016: estudo transversal sobre a principal causa de gastroenterite infantil*

Kamioka

Madalosso²,

Pavanello³

et al. 2019

Epidemiologia e Serviços de Saúde

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“…However, Ozdemir et al (2010) reported the presence of HAdV in the fall and winter months in Turkey, Kitajima et al (2010) observed a higher frequency of NoV in winter and spring in Japan and Zeng et al (2012) observed that the frequency of NoV peaks only during the cold months in China. Interestingly, similar to that reported by Siqueira et al (2013b), we observed that the distribution of RVA and NoV positive cases throughout the year presented a distinct seasonal profile and a “seesaw effect”.…”

Section: Discussionsupporting

confidence: 88%

Acute gastroenteritis and enteric viruses in hospitalised children in southern Brazil: aetiology, seasonality and clinical outcomes

Raboni

Damasio

Ferreira

et al. 2014

Mem. Inst. Oswaldo Cruz

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Viral acute gastroenteritis (AG) is a significant cause of hospitalisation in children younger than five years. Group A rotavirus (RVA) is responsible for 30% of these cases. Following the introduction of RVA immunisation in Brazil in 2006, a decreased circulation of this virus has been observed. However, AG remains an important cause of hospitalisation of paediatric patients and only limited data are available regarding the role of other enteric viruses in these cases. We conducted a prospective study of paediatric patients hospitalised for AG. Stool samples were collected to investigate human adenovirus (HAdV), RVA, norovirus (NoV) and astrovirus (AstV). NoV typing was performed by nucleotide sequencing and phylogenetic analysis. From the 225 samples tested, 60 (26%) were positive for at least one viral agent. HAdV, NoV, RVA and AstV were detected in 16%, 8%, 6% and 0% of the samples, respectively. Mixed infections were found in nine patients: HAdV/RVA (5), HAdV/NoV (3) and HAdV/NoV/RVA (1). The frequency of fever and lymphocytosis was significantly higher in virus-infected patients. Phylogenetic analysis of NoV indicated that all of these viruses belonged to genotype GII.4. The significant frequency of these pathogens in patients with AG highlights the need to routinely implement laboratory investigations.

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“…Although NoV has become the most common cause of severe diarrhoea in industrialized countries with high rotavirus immunization [1,2], few studies have described NoV epidemiology since the introduction of rotavirus vaccines in other settings [5][6][7][8]. Brazil was one of the first countries to introduce a monovalent rotavirus vaccine (Rotarix) on a large scale in March 2006 [9], reaching high vaccine coverage levels (>80%) within a year of vaccine introduction and rapidly reducing the incidence of rotavirus-related hospitalizations [10,11].…”

Section: Introductionmentioning

confidence: 99%

Acute norovirus gastroenteritis in children in a highly rotavirus-vaccinated population in Northeast Brazil

Santos

Gurgel

Cavalcante

et al. 2017

Journal of Clinical Virology

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Running title: Norovirus diarrhoea in children in BrazilWord count: Abstract: 199. Manuscript: 2255. Highlights Gastroenteritis is one of the most important causes of morbidity and mortality in children.  Noroviruses are a leading cause of sporadic cases and outbreaks of acute gastroenteritis.  Norovirus annual detection rates increased over the study period.  The detection of norovirus was higher among young children. AbstractBackground: Gastroenteritis is one of the most important causes of morbidity and mortality

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Group A rotavirus and norovirus display sharply distinct seasonal profiles in Belém, northern Brazil

Cited by 13 publications

References 23 publications

Norovírus no município de São Paulo, 2010-2016: estudo transversal sobre a principal causa de gastroenterite infantil*

Norovírus no município de São Paulo, 2010-2016: estudo transversal sobre a principal causa de gastroenterite infantil*

Acute gastroenteritis and enteric viruses in hospitalised children in southern Brazil: aetiology, seasonality and clinical outcomes

Acute norovirus gastroenteritis in children in a highly rotavirus-vaccinated population in Northeast Brazil

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