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. 2019 Jan;164(1):63-68.
doi: 10.1007/s00705-018-4021-5. Epub 2018 Sep 25.

A case control study on the prevalence of enterovirus in children samples and its association with diarrhea

Xin-Xin Shen  1 , Fang-Zhou Qiu  2 , Gui-Xia Li  3 , Meng-Chuan Zhao  3 , Ji Wang  1 , Chen Chen  1 , Li Zhao  1   2 , Ju-Ju Qi  1   2 , Hong Liu  4 , Yi Zhang  1 , Xiao-Zhou He  1 , Le Wang  3 , Zhi-Shan Feng  5 , Xue-Jun Ma  6
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A case control study on the prevalence of enterovirus in children samples and its association with diarrhea

Xin-Xin Shen et al. Arch Virol. 2019 Jan.

Abstract

Some serotypes of enterovirus (EV) may lead to transient and symptomatic gastrointestinal infections while others are commensal residents of the human gut. To determine whether certain EV types are more often associated with diarrhea, we conducted a preliminary study on the prevalence of EV serotypes and common diarrhea viruses in fecal samples of diarrhea children and healthy controls. EV was tested with one step nest polymerase chain reaction and typed by direct sequencing while common causative diarrhea viruses rotavirus (RV), norovirus (NoV), adenovirus (AdV), bocavirus (HBoV), and astrovirus (AstV) were screened with multiplex PCR assays. Human Rhinovirus (HRV) and human EVs that were present in both groups were further quantified and their odds ratios (OR) were calculated. Enteric pathogens were detected in 89 (32.6%) of 273 children with diarrhea and included human EVs (51, 18.68%), HRV (32, 11.72%), RV (38, 13.92%), AdV (24, 8.79%), NoVGII (16, 8.79%), HBoV (8, 2.93%) and AstV (3, 1.09%). Potential enteric pathogens were found in 25 (6.93%) of 361 healthy controls and included human EV (59, 16.34%), HRV (8, 2.22%), RV (1, 0.28%), NoVGII (5, 1.39%), AstV (2, 0.55%), AdV (16, 4.43%) and HBoV (1, 0.28%). In addition, EV71, echovirus 3,9,14,25 and coxsackievirus A14 existed in healthy controls only, while HRV, echovirus11,18, coxsackievirus A2,4,6 and B2,4 were found in both patients and healthy controls. OR assessment confirmed a strong association of HRV (P < 0.001) and a weak one for echovirus 11 and coxsackievirus A6 with diarrhea (P > 0.05). Our results indicate the diversity of EV serotypes in diarrhea and healthy control groups varies, and the potential etiological role of HRV in diarrhea.

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