Seroepidemiological survey of hepatitis B among healthy population in Mengjin district,Luoyang city
Objective To understand the positive rates of the serum markers of Hepatitis B virus(HBV)in the people living in Mengjin district of Luoyang city.Methods The questionnaire survey and blood samples were carried out in the selected people aged 1-79 years with multi-stage cluster random sampling method in Mengjin district of Luoyang city,2021.The surface antigen(HBsAg),surface antibody(HBsAb)and core antibody(HBcAb)of HBV in serum samples were tested with enzyme-linked immunosorbent assay(ELISA)method.If HBsAg was positive,the e antigen(HBeAg)and e antibody(HBeAb)of HBV were tested in the serum sample.Then the positive rate of the markers in the serum were be analyzed.Results The positive rate of HBsAg,HBsAb and HBcAb was 1.75%,60.48%and 18.25%,respectively in 630 subjects.Among the subjects with HBsAg positive,the positive rate of HBeAg and HBeAb was 9.09%and 81.82%.The positive rate of HBsAg was the highest in the age group of 40-79 years(4.12%),and the lowest in the age group of 1-years and 5-years(0.00%).There was statistical difference among the positive rates of HBsAg in different age groups(P=0.005).The positive rate of HBsAb was the highest in the age group of 1-years(92.50%),and the lowest in the age group of 5-years(44.12%).There was statistical difference among the positive rates of HBsAb in different age groups(x2=72.016,P<0.001).The positive rates of HBsAb decreased as the inoculation time of final dose of hepatitis B vaccine lengthening(x2=84.961,P<0.001).Conclusions The infection rate of HBV is relatively low in children in Mengjin district of Luoyang city.The adult HBV infectors still exist.The quality of routine immunization of Hepatitis B vaccine should be maintained in children,meanwhile vaccination of hepatitis B should be enhanced in adolescents and adults.
Hepatitis BHepatitis B virusHepatitis B vaccineSerum markerPositive rate