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Persistence of Hepatitis B Vaccine Immunity in Hemodialysis Patients
Author(s) -
Ramezani Amitis,
Velayati Ali Akbar,
Eslamifar Ali,
Banifazl Mohammad,
Ahmadi Farrokhlagha,
Maziar Sima,
Razeghi Effat,
Kalantar Ebrahim,
Amirkhani Aref,
Aghakhani Arezoo
Publication year - 2008
Publication title -
therapeutic apheresis and dialysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.415
H-Index - 53
eISSN - 1744-9987
pISSN - 1744-9979
DOI - 10.1111/j.1744-9987.2008.00560.x
Subject(s) - medicine , persistence (discontinuity) , immunity , vaccination , immunology , vaccination schedule , titer , antibody , hepatitis b vaccine , hepatitis b , population , antibody titer , hepatitis a vaccine , hemodialysis , gastroenterology , hepatitis b virus , immune system , immunogenicity , virus , immunization , hbsag , geotechnical engineering , environmental health , engineering
Although the efficacy of hepatitis B vaccines in patients undergoing chronic hemodialysis (HD) treatment has been documented, the persistence of immunity in this population remains largely unknown. In this study we evaluated the persistence of hepatitis B vaccine immunity in HD patients. We followed 37 hepatitis B vaccinated HD patients (following a four‐dose vaccination schedule of 40 μg injections intramuscularly in the deltoid muscle at 0, 1, 2, and 6 months) for up to one year to evaluate the persistence of immunity (as indicated by serum levels of hepatitis B surface antibody (anti‐HBs) equal to or higher than 10 IU/L). One year after vaccination, 18.9% of patients had lost their anti‐HBs (transient responders), while 81.1% still had detectable antibodies in the serum (persistent responders). From 81.1% of persistent responders 11.5% and 88.5% were weak and high responders, respectively. There was no significant difference between persistent and transient responders regarding age, sex, or nutritional factors. We did not find any factors that related to maintaining protective levels of anti‐HBs in HD patients. It seems that an antibody titer above 100 IU/L following vaccination is necessary in order to maintain that level of antibody one year later.