Antibody persistence and immune memory in adults, 15 years after a three‐dose schedule of a combined hepatitis A and B vaccine
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Cites background or methods or result from "Antibody persistence and immune mem..."
...Such a trend was also commented upon at Year 15, when the differences were attributed to likely inconsistencies in the study cohorts and natural variations in GMC.22 The first observations from these clinical trials had suggested that protection would last 5–10 y.16,18,19 However, by applying these data for hepatitis A vaccine in mathematical models, it was estimated that anti-HAV antibody titers after a complete primary course would persist for 25 y in 95% of vacinees.23 Our current data, using the HAB vaccine, collected up to 20 y after vaccination, confirm that most subjects still present circulating antibodies at Year 20....
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...Such a trend was also commented upon at Year 15, when the differences were attributed to likely inconsistencies in the study cohorts and natural variations in GMC.(22)...
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...Over the course of the 20 y follow-up, several assay changes were required and details of the assays used until Year 15 are described by Van Damme et al (2012).22 From Years 16 to 20, anti-HAV antibodies were assessed using a commercially available enzyme-linked immunoassay (EnzygnostTM , Siemens…...
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...Over the course of the 20 y follow-up, several assay changes were required and details of the assays used until Year 15 are described by Van Damme et al (2012).22 From Years 16 to 20, anti-HAV antibodies were assessed using a commercially available enzyme-linked immunoassay (EnzygnostTM , Siemens Healthcare, Germany; seropositivity cut-off: 15 mIU/mL)....
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...We observed a steep fall in both anti-HAV and antiHBs antibodies up to Month 12 in both studies, followed by an apparent stabilization until Year 15.(22) Our current results confirm that the vast majority of subjects still present circulating antibodies after 20 y, and suggest that the shallow decrease in GMC is maintained [anti-HAV antibody GMCs: 229....
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31 citations
Cites background from "Antibody persistence and immune mem..."
...In addition, a recent study of 306 persons vaccinated in 1996 with three doses of the combined HAV and HBV vaccine demonstrated that all had anti-HAV titres >15 mIU/ml 15 years later.(14) Thus, given the safety and durability of HAV vaccination, clearly the major future challenge is coupling vaccination with other methods of preventing HAV infection to eliminate HAV from humans....
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References
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"Antibody persistence and immune mem..." refers background in this paper
...2011 WILEY PERIODICALS, INC. Wielen et al., 2000; Burgess and Rodger, 2001; Van Damme et al., 2001]....
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223 citations
"Antibody persistence and immune mem..." refers background in this paper
...Active immunization is a well-established, safe and effective method of conferring long-term protection against hepatitis A and B infections in susceptible persons [Van Herck et al., 1999, 2007; Van Der Grant sponsor: GlaxoSmithKline Biologicals....
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...The pattern of decline in the anti-HAV and antiHBs antibody GMCs over time in this study was comparable to that observed in previous studies with the hepatitis A and B vaccine—a rapid decline in the first year followed by a more gradual decrease over the subsequent years [Van Damme et al., 2001; Van Herck et al., 2007]; this has also been observed for monovalent hepatitis A and B vaccines [Duval et al., 2005; Rendi-Wagner et al., 2007]....
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...…to be correlated to loss of long-term protection and immune memory against hepatitis A and B disease, as shown for monovalent vaccines [Banatvala et al., 2000; Van Damme et al., 2003; Gabbuti et al., 2007] and the same principle is expected to hold true for this combined hepatitis A and B vaccine....
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...*Correspondence to: P. Van Damme, MD, PhD, Professor, Faculty of Medicine, Centre for the Evaluation of Vaccination, Vaccine & Infectious Disease Institute (WHO Collaborating Centre), University of Antwerp, Campus Drie Eiken (room R2....
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...No vaccine-related SAEs were reported at the Year 15 time point since the previous publication [Van Herck et al., 2007]....
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202 citations
"Antibody persistence and immune mem..." refers background in this paper
...…considered to be correlated to loss of long-term protection and immune memory against hepatitis A and B disease, as shown for monovalent vaccines [Banatvala et al., 2000; Van Damme et al., 2003; Gabbuti et al., 2007] and the same principle is expected to hold true for this combined hepatitis A…...
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112 citations
"Antibody persistence and immune mem..." refers result in this paper
...Similar observations indicating a negative correlation between universal mass immunization against hepatitis A and HAV-associated morbidity have been reported in other countries [Andre, 2006; Torner et al., 2011]....
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