Molecular and epidemiological trend of norovirus associated gastroenteritis in Dhaka City, Bangladesh

Dey, Shuvra Kanti; Nguyen, Tuan Anh; Phan, Tung Gia; Nishio, Osamu; Salim, Abul Faiz Mohammad; Rahman, Mijani; Yagyu, Fumihiro; Okitsu, Shoko; Ushijima, Hiroshi

doi:10.1016/j.jcv.2007.08.005

Cited by 50 publications

(47 citation statements)

References 29 publications

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“…The detection rate in this study (28%) was much higher than observed in previous studies in Bangladesh [7,8] and is comparable to recent published reports from other countries [9,10]. Designing of appropriate primer set to detect the full range of NoV types has been difficult due to extensive genomic diversity.…”

Section: Discussionsupporting

confidence: 63%

“…Samples were transported in temperature controlled boxes (2)(3)(4)(5)(6)(7)(8) o C) to the Virology Laboratory of icddr,b in Dhaka and stored at -20°C until tested.…”

Section: Sample Collection and Transportationmentioning

confidence: 99%

“…During 1978-79, a serosurvey in rural Bangladesh indicated a high prevalence of NoV antibodies (43%) in children less than 4 years of age [6]. Studies on molecular detection of NoV in urban hospitals indicated that 4.5% to 8.5% were hospitalized during 2004-05 due to NoV infection [7,8]. These studies relied on specific primers which could not detect all NoV types.…”

Section: Introductionmentioning

confidence: 99%

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High prevalence of noroviruses among hospitalized diarrheal patients in Bangladesh, 2011

Nahar

Afrad

Begum

et al. 2013

J Infect Dev Ctries

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Introduction: Norovirus is not usually investigated in diarrheal patients in Bangladesh which may account for the many cases where no pathogens are identified. Methodology: Stool specimens collected from diarrheal patients from three hospitals in Bangladesh during 2011 were investigated for norovirus RNA using real-time RT-PCR assay with norovirus type specific primers and probes. Results: Of the 257 stool specimens tested, 28.4 % were norovirus positive. GII (71.2%) was the predominant strain followed by GI (20.5%), GI+GII (6.8%) and GIV (1.4%). Half of the norovirus positive stools (n=37) were co-infected with other pathogens. Conclusion: Continued surveillance of norovirus together with other viral and bacterial pathogens in hospitalized gastroenteritis patients as well as in the community will further elucidate the role and burden of different pathogens in diarrheal diseases.

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Section: Discussionsupporting

confidence: 63%

“…Samples were transported in temperature controlled boxes (2)(3)(4)(5)(6)(7)(8) o C) to the Virology Laboratory of icddr,b in Dhaka and stored at -20°C until tested.…”

Section: Sample Collection and Transportationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High prevalence of noroviruses among hospitalized diarrheal patients in Bangladesh, 2011

Nahar

Afrad

Begum

et al. 2013

J Infect Dev Ctries

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“…Viruses, including rotavirus (RV), norovirus (NoV), enteric adenovirus 40/41 (AdV) and astrovirus (AsV) have been shown to be important causes of acute diarrhea in children during the early years of life [8][9][10][11]. RV and NoV are considered the most important causative agents of viral gastroenteritis [12,13] and surveillance studies have demonstrated that RV is one of the most common causes of diarrhea among children seeking hospital care for their illness [14]. RV infections are responsible for millions of childhood hospitalizations and thousands of potentially preventable deaths in developing countries each year [15].…”

Section: Introductionmentioning

confidence: 99%

Increase in the detection rate of viral and parasitic enteric pathogens among Egyptian children with acute diarrhea

El-Mohammady

Mansour

Shaheen

et al. 2012

J Infect Dev Ctries

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Introduction: Acute diarrhea continues to be a major cause of morbidity and mortality in children from developing countries. Determination of the frequency of diarrhea in an area, along with the proportion of disease caused by specific enteric agents of different origins, is considered the first step in controlling diarrheal diseases. Methodology: From 2005 to 2007, a hospital-based surveillance was conducted in two locations in Egypt to determine the causes of acute diarrhea in children younger than 5-years seeking treatment. Five additional enteric viral and parasitic pathogens were tested using commercially-available enzyme immunoassays (EIA) to re-evaluate the prevalence of diarrheal pathogens in undiagnosed cases. Results: Adenovirus, astrovirus, norovirus and G. lamblia were detected as the sole pathogen in 2% (n=34), 3% (n=56), 9% (n=191) and 7% (n=146) of the cases, respectively. E. histolytica was never detected as the sole pathogen. The percentage of diarrheal cases with a known cause increased significantly, from 48% (n=1,006) to 74% (n=1,568) (P<0.0001). Conclusion: In our study, the incorporation of immunoassays yielded useful data in identifying pathogens in previously pathogen-negative diarrhea cases.

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“…The mortality of acute gastroenteritis was estimated to be 2.1 million in the year 2000, and mortality due to gastroenteritis in children was higher in developing countries than in the developed countries (2). Recently, NoVs have been recognized as novel emerging pathogens.…”

mentioning

confidence: 99%

Molecular Epidemiology of Norovirus Infections in Children with Acute Gastroenteritis in South Korea in November 2005 through November 2006

et al. 2008

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Molecular and epidemiological trend of norovirus associated gastroenteritis in Dhaka City, Bangladesh

Cited by 50 publications

References 29 publications

High prevalence of noroviruses among hospitalized diarrheal patients in Bangladesh, 2011

High prevalence of noroviruses among hospitalized diarrheal patients in Bangladesh, 2011

Increase in the detection rate of viral and parasitic enteric pathogens among Egyptian children with acute diarrhea

Molecular Epidemiology of Norovirus Infections in Children with Acute Gastroenteritis in South Korea in November 2005 through November 2006

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