Influenza is a major cause of morbidity and mortality. Despite vaccination, many elderly recipients do not develop a protective antibody response. To determine whether Human Leukocyte Antigen (HLA) alleles modulate seroprotection to influenza, a cohort of HLA class II-typed high-risk vaccine recipients was investigated. Haemagglutinin inhibition (HAI) titres were measured 14-40 days post-subuni...

1. The response rate to recombinant hepatitis B vaccine was suboptimal (70.1%) in the peritoneal dialysis population. 2. We investigated whether a three-dose regimen of extrahigh dose (80 μg) of Engerix-B would achieve a higher rate of primary seroconversion and more persistent seroprotection in peritoneal dialysis patients, compared with the conventional 40-μg dose. 3. The rates of seroconvers...

background malnutrition is the most common cause of immune deficiency. it results in reduced secretion of t-cells and b-cell-stimulating factors leading to declining of special immunoglobulins. on the other hand, hepatitis b, as a major world health problem, can be prevented effectively by vaccination. three doses of hepatitis b virus (hbv) vaccine induce protective levels of anti-hepatitis b s...

INTRODUCTION The efficacy of non-adjuvanted seasonal influenza vaccine in young children is considered to be suboptimal. This study compared the safety and immunogenicity profiles of MF59-adjuvanted, trivalent, influenza vaccine (ATIV) and non-adjuvanted, trivalent, influenza vaccine (TIV) in Guatemalan children (N = 360) between 6 and < 60 months of age. METHODOLOGY Children received two dos...

We performed a quantitative review of 31 vaccine antibody response studies conducted from 1986 to 2002 and compared antibody responses to influenza vaccine in groups of elderly versus younger adults. We did a weighted analysis of the probability of vaccine response (measured as seroconversion and seroprotection) for each vaccine component (H1, H3 and B antigens). Using a multiple regression mod...

This study compared the levels of immunogenicity and safety of diphtheria-tetanus toxoid-five-component acellular pertussis (DTaP(5)), inactivated poliovirus (IPV), and Haemophilus influenzae type b (Hib) (DTaP(5)-IPV-Hib) and DTaP(3)-IPV/Hib vaccines for study participants 3, 5, and 12 months of age. Post-dose 3 noninferiority criteria comparing DTaP(5)-IPV-Hib to DTaP(3)-IPV/Hib using rates o...

UNLABELLED A randomized clinical trial of hepatitis A vaccines (1 or 2 doses of inactivated vaccine [Healive] or 1 dose of live attenuated vaccine [Biovac]) was conducted among adults to evaluate seroprotection rates and geometric mean concentrations of antibody against hepatitis A virus for 36 months. High rates of seroprotection persisted for at least 36 months among adults who received 1 or ...

AIMS Assess IBD patients starting anti-TNF for the impact of preventive measures in HBV and/or HCV, and the predictive response factors to HBV vaccination. METHODS Multicenter prospective study including 389 IBD patients. Four interventions were established: I-1) anti-HBs <100IU/L: HBV vaccination with double doses at 0-1-2months, and revaccination if titres <100IU/L (seroprotection defined a...