Investigation of occult hepatitis B infection in blood donors in Panyu District,Guangzhou
Objective To investigate the status of occult hepatitis B virus infection(OBI)among blood donors in Pan-yu District of Guangzhou,so as to provide reference for blood transfusion safety.Methods From January 1,2021 to July 31,2023,60 872 blood donors in Panyu District with HBsAg-/HBV DNA+were screened as OBI subjects.The age,gen-der and frequency of blood donation of OBI donors were statistically analyzed.HBV DNA viral load was detected and hepati-tis B five-panel test was performed.Results The HBsAg-/HBV DNA+positive rate of blood donors in Panyu District was 0.08％(50/60 872).The OBI positive rate of male blood donors was higher than that of female blood donors,with no statis-tically significant difference(P＞0.05).The OBI positive rate of blood donors increased with age,with statistically significant difference(P＜0.05).The OBI positive rate of first-time blood donors was higher than that of repeat blood donors,with sta-tistically significant difference(P＜0.05).Of the 50 HBsAg-/HBV DNA+donors,42 had a follow-up test,among which 14 had no HBV DNA detected.The mean value of the initial screening resolution CT was 37.77.In hepatitis B five-panel test,single HBsAb+accounted for the highest proportion as 50％(7/14).HBV DNA viral load was detected in 28 cases,and vi-ral load＜10 IU/mL accounted for 50％(14/28)and that＜200 IU/mL accounted for 96％(27/28).The mean value of ini-tial screening resolution CT was 34.55,mainly HBeAb+/HBcAb+in hepatitis B five-panel test,accounting for 32.14％(9/28).After multiple follow-up of 24 blood donors,37.5％(9/24)were detected with viral load,33.33％(8/24)were de-tected with no viral load,and 29.17％(7/24)had both negative and positive results.The hepatitis B five-panel test out-come of 29.17％(7/24)donors showed a turnover,while 70.83％(17/24)did not.Conclusion The OBI positive rate is lower in young repeat blood donors.Since OBI is the result of a variety of complex mechanisms,and the existing serological NAT cannot detect all OBI donors,strict pre-donation consultation and screening of previous HBV DNA+donors are very important for blood safety.It is recommended that patients with weakened immunity,such as organ transplantation,tumor chemoradiotherapy,or the use of immunosuppressive drugs,use virus inactivated blood products.
blood donoroccult hepatitis B virus infection(OBI)hepatitis B five-panel testnucleic acid testing(NAT)HBV DNA quantification
万方数据
维普
