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Seroepidemiology of Norovirus GII.3 and GII.4 Infections in Children with Diarrhea in Xi'an, China.
Foodborne Pathog Dis. 2015 Jun; 12(6):500-5.FP

Abstract

OBJECTIVE

The objective of this study was to investigate the seroepidemiology of immunoglobulin G (IgG) antibodies against Norovirus (NoV) GII.3 and GII.4 genotypes among children younger than 5 years with acute diarrhea in Xi'an, China.

MATERIALS AND METHODS

A total of 362 serum samples were collected from diarrheal children in the Department of Digestive Diseases of Xi'an Children's Hospital between March 2009 and October 2012. Recombinant capsid proteins of NoV genotypes GII.3 and GII.4 were expressed using the baculovirus expression system. The viruslike particles (VLPs) were examined by electron microscopy and Western blot, and VLPs were used as antigens for serological IgG tests using enzyme-linked immunosorbent assays.

RESULTS

The overall seroprevalence for GII.4 (86.2%) was significantly higher (p<0.01) than for GII.3 (67.9%). The seroprevalence remained in a high and stable level (70.9% for GII.3 and 88.7% for GII.4) in children under 1 year of age, then dropped in the age group 12-17 months (49.3% for GII.3 and 68.1% for GII.4), and finally increased to 77.8% for GII.3 and 96.8% for GII.4 in the group >18 months. The seroprevalence in the age group 12-17 months showed more statistically significant differences than the other age groups for both GII.3 and GII.4 (p<0.05).

CONCLUSIONS

In conclusion, seroprevalence of NoV GII.3 and GII.4 was high in young children in Xi'an, China, and the anti-GII.4-positive rates were statistically higher than GII.3 across all the age groups.

Authors+Show Affiliations

1 Department of Pediatrics, The First Affiliated Hospital, Medical School of Xi'an Jiaotong University , Xi'an, Shaanxi Province, China .2 Hubert Department of Global Health, Rollins School of Public Health, Emory University , Atlanta, Georgia .1 Department of Pediatrics, The First Affiliated Hospital, Medical School of Xi'an Jiaotong University , Xi'an, Shaanxi Province, China .2 Hubert Department of Global Health, Rollins School of Public Health, Emory University , Atlanta, Georgia .3 Lab Center of Public Health Department, School of Medicine, Xi'an Jiaotong University , Xi'an, Shaanxi Province, China .4 Department of Nursing, School of Medicine, Xi'an Jiaotong University , Xi'an, Shaanxi Province, China .5 College of Medicine, Xi'an Jiaotong University , Xi'an, Shaanxi Province, China .6 Department of Statistics and Epidemiology, School of Medicine, Xi'an Jiaotong University , Xi'an, Shaanxi Province, China .

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25789571

Citation

Liu, Xiaohong, et al. "Seroepidemiology of Norovirus GII.3 and GII.4 Infections in Children With Diarrhea in Xi'an, China." Foodborne Pathogens and Disease, vol. 12, no. 6, 2015, pp. 500-5.
Liu X, Liu P, Wang J, et al. Seroepidemiology of Norovirus GII.3 and GII.4 Infections in Children with Diarrhea in Xi'an, China. Foodborne Pathog Dis. 2015;12(6):500-5.
Liu, X., Liu, P., Wang, J., Moe, C., Hu, S., Cheng, L., Gu, W., & Wang, X. (2015). Seroepidemiology of Norovirus GII.3 and GII.4 Infections in Children with Diarrhea in Xi'an, China. Foodborne Pathogens and Disease, 12(6), 500-5. https://doi.org/10.1089/fpd.2014.1905
Liu X, et al. Seroepidemiology of Norovirus GII.3 and GII.4 Infections in Children With Diarrhea in Xi'an, China. Foodborne Pathog Dis. 2015;12(6):500-5. PubMed PMID: 25789571.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Seroepidemiology of Norovirus GII.3 and GII.4 Infections in Children with Diarrhea in Xi'an, China. AU - Liu,Xiaohong, AU - Liu,Pengbo, AU - Wang,Jiao, AU - Moe,Christine, AU - Hu,Senke, AU - Cheng,Li, AU - Gu,Wei, AU - Wang,Xiaoqin, Y1 - 2015/03/19/ PY - 2015/3/20/entrez PY - 2015/3/20/pubmed PY - 2016/3/16/medline SP - 500 EP - 5 JF - Foodborne pathogens and disease JO - Foodborne Pathog Dis VL - 12 IS - 6 N2 - OBJECTIVE: The objective of this study was to investigate the seroepidemiology of immunoglobulin G (IgG) antibodies against Norovirus (NoV) GII.3 and GII.4 genotypes among children younger than 5 years with acute diarrhea in Xi'an, China. MATERIALS AND METHODS: A total of 362 serum samples were collected from diarrheal children in the Department of Digestive Diseases of Xi'an Children's Hospital between March 2009 and October 2012. Recombinant capsid proteins of NoV genotypes GII.3 and GII.4 were expressed using the baculovirus expression system. The viruslike particles (VLPs) were examined by electron microscopy and Western blot, and VLPs were used as antigens for serological IgG tests using enzyme-linked immunosorbent assays. RESULTS: The overall seroprevalence for GII.4 (86.2%) was significantly higher (p<0.01) than for GII.3 (67.9%). The seroprevalence remained in a high and stable level (70.9% for GII.3 and 88.7% for GII.4) in children under 1 year of age, then dropped in the age group 12-17 months (49.3% for GII.3 and 68.1% for GII.4), and finally increased to 77.8% for GII.3 and 96.8% for GII.4 in the group >18 months. The seroprevalence in the age group 12-17 months showed more statistically significant differences than the other age groups for both GII.3 and GII.4 (p<0.05). CONCLUSIONS: In conclusion, seroprevalence of NoV GII.3 and GII.4 was high in young children in Xi'an, China, and the anti-GII.4-positive rates were statistically higher than GII.3 across all the age groups. SN - 1556-7125 UR - https://www.unboundmedicine.com/medline/citation/25789571/Seroepidemiology_of_Norovirus_GII_3_and_GII_4_Infections_in_Children_with_Diarrhea_in_Xi'an_China_ L2 - https://www.liebertpub.com/doi/10.1089/fpd.2014.1905?url_ver=Z39.88-2003&amp;rfr_id=ori:rid:crossref.org&amp;rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -