Enterovirus detection in patients with acute gastroenteritis in Switzerland

Abstract

Acute gastroenteritis (GE) has a major impact on morbidity and mortality worldwide, yet comprehensive data regarding infectious agents including enteroviruses are scarce. We hypothesized that enteroviruses constitute a significant cause of acute GE. We analyzed 677 stool samples from 504 patients, which had been submitted for suspected infectious GE. 0.2 ml of stool suspension was extracted using the Abbott m2000 _sp robot and analysed by multiplex nucleic acid testing (NAT) using the Luminex xTAG gastrointestinal pathogen panel (GPP) as well as by specific NATs detecting enteroviruses and polioviruses. Median age of the patients was 6.6 years (IQR 1.1-50.6; pediatric <18 years). 292 of 677 (43%) samples were positive for at least one pathogen. Enterovirus was detected in 5.3% (36/677) as sole pathogen (67%), and more frequently in children (p = 0.0054). Only rotavirus (18.6%) and norovirus (12.1%) were more frequent. Clostridium difficile and Campylobacter jejuni were detected in 5.5% and 2.2% of stools, respectively. Adenovirus, E. coli O157, Salmonella, Shiga toxin-producing E. coli (STEC), Shigella, Giardia lamblia, Cryptosporidium, and Entamoeba histolytica were rare (<1% of samples). Vibrio cholerae, Yersinia enterocolitica, enterotoxigenic E. coli (ETEC) and poliovirus were not detected. Thus, non-polio enteroviruses are the third most frequent pathogen in acute GE suggesting that enteroviruses may play an important role in GE even in developed, industrial health care settings. This article is protected by copyright. All rights reserved

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