Abstract
During June 2017–December 2018, norovirus was responsible for 10.9% of acute gastroenteritis cases in Thailand. Genogroup I (GI) was found in 14% of samples, of which 12 were co-infected with genogroup II (GII). In 35.8% of samples, GII.Pe-GII.4 Sydney predominated. Diverse recombinant strains of GI and GII norovirus co-circulated year-round.
Highlights
Norovirus is a major cause of nonbacterial acute gastroenteritis; sporadic cases and outbreaks occur among children and adults [1]
A relative increase in global prevalence of norovirus has been attributed to genogroup II (GII).P16-GII.4, GII.17, and GII.P16-GII.2 [3,4,5]
Norovirus infection in Thailand occurs as sporadic cases and outbreaks year-round
Summary
Norovirus is a major cause of nonbacterial acute gastroenteritis; sporadic cases and outbreaks occur among children and adults [1]. A relative increase in global prevalence of norovirus has been attributed to GII.P16-GII.4, GII.17, and GII.P16-GII.2 [3,4,5]. Norovirus infection in Thailand occurs as sporadic cases and outbreaks year-round. After the recent increase of GII.P16GII.2 in Thailand in late 2016 [6], we sought to identify the most frequently identified genotype(s).
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