Investigation on Contamination of Shellfish Norovirus,Hepatitis A Virus,Rotavirus and Astrovirus in Coastal Area of Shandong Province
Song Xuyan
Ye Bing
Lin Ying
Zhao Huiwen
Abstract：OBJECTIVE To understand the pollution situation of shellfish enterovirus in coastal cities of Shandong Province,to conduct preliminary risk screening and safety analysis of shellfish virus.METHODS Commercial shellfish,including oysters,mussels and scallops,were collected from 6 prefecture-level cities of Binzhou,Dongying,Weihai,Rizhao,Yantai and Weifang in Shandong Province.Quantitative Real-time PCR detection was performed for norovirus,hepatitis A virus,rotavirus and astrovirus.The regional distribution,species distribution,virus genotyping and mixed infection of positive samples were analyzed.RESULTS The detection rate of GⅠ norovirus was 3％,and the detection rate of GⅡ norovirus was 20％.The positive rate was higher in Dongying,Yantai and Weifang.One sample from Yantai was co-infected with GⅠ/GⅡ norovirus.The detection rates of hepatitis A virus,rotavirus and as-trovirus were 4％,3％and 3％,respectively.There were 2 cases of co-infection in Rizhao,which were hepatitis A,GⅡ norovirus co-infection and rotavirus,or GⅡ norovirus co-infection respectively.CONCLUSION Enterovirus infection is found in shellfish sold in coastal areas of Shandong Province,especially norovirus with high detection rate and virus co-infection.
Keywords：shellfish enterovirusnorovirusfood-borne disease
Publication Date：2024-05-10
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 65-68 )