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  1. The scenario of norovirus contamination in food and food handlers
    Tuan Zainazor C, Hidayah MS, Chai LC, Tunung R, Ghazali FM, Son R
    J Microbiol Biotechnol, 2010 Feb;20(2):229-37.
    PMID: 20208424
    Recently, many cases related to viral gastroenteritis outbreaks have been reported all over the world. Noroviruses are found to be leading as the major cause of outbreaks of acute gastroenteritis. Patients with the acute gastroenteritis normally found to be positive with norovirus when stools and vomit were analyzed. This paper reviews various activities and previous reports that describe norovirus contaminated in various food matrixes and relationship between food handlers. Lately, a numbers of norovirus outbreaks have been reported which are involved fresh produce (such as vegetables, fruits), shellfish and prepared food. Food produces by infected food handlers may therefore easily contaminated. In addition, food that required much handling and have been eaten without heat treatment gave the high risk for getting foodborne illnesses. The standard method for detection of norovirus has already been available for stool samples. However, only few methods for detection of norovirus in food samples have been developed until now.
    Matched MeSH terms: Norovirus/isolation & purification*
  2. Fulltext Norovirus outbreak among students of a boarding school in Kluang, Johor, Malaysia
    Subahir MN, Jeffree MS, Hassan MR, Razak MFA, Mohamad SNG, Fong SY, et al.
    J Infect Dev Ctries, 2019 04 30;13(4):274-277.
    PMID: 32045370 DOI: 10.3855/jidc.11199
    INTRODUCTION: Norovirus (NoV) is a contagious virus causing acute gastroenteritis and is mainly responsible for diarrheal outbreak in closed settings. The aims of this study were to describe the epidemiological characteristic of an outbreak in a boarding school, to assess the extent of the outbreak and to implement appropriate control measures.

    METHODOLOGY: A descriptive study was conducted to describe the epidemiological characteristics of the outbreak. Data on demographic details, onset of abdominal symptoms, food intake history and contact with ill person three days prior to illness were obtained.

    RESULTS: Twelve fresh stool and 14 food samples were tested for NoV and enteric pathogens, respectively. Out of 745 students, 42 (5.6%) were infected during this outbreak. Predominant clinical features were diarrhea (76.1%), vomiting (71.4%) and abdominal pain (67%). Eight (67%) stool samples and six (43.9%)food samples were positive for NoV and total coliforms, respectively. The dissemination of the disease was due to poor hygiene practices among students. Quarantine was imposed until the last case on September 28, 2016. The outbreak was declared over on September 30, 2016.

    CONCLUSIONS: A NoV outbreak was determined first time in Malaysia. Environmental assessment showed poor hygienic conditions in the school's kitchen. The number of infected students increased considerably despite the implementation of preventive and control measures. Quarantine was effective to stop the outbreak which is characteristics of NoV outbreak.

    Matched MeSH terms: Norovirus/isolation & purification*
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