National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
National Institutes of Health Clinical Center (CC)
Time Perspective: Prospective
To measure anti-HBs titers and immune response in HIV positive and negative adults who were vaccinated more than 10 years ago and to compare them to individuals who spontaneously recovered from acute hepatitis B more than 10 years ago
To assess the clinical, serological and immunological response to a booster dose of hepatitis B vaccine in those individuals who did not maintain the immune response to the primary vaccination.
18 Years to 100 Years (Adult, Senior)
August 10, 2010
August 16, 2010
October 6, 2017
National Institutes of Health Clinical Center, 9000 Rockville Pike Bethesda, Maryland, United States
† Study has passed its completion date and status has not been verified in more than two years.