was defined as loss of HBeAg and detection of anti-HBe in a patient who was previously HBeAg positive and anti-HBe negative.
to WNV was distinguished from cross-reactivity to other flaviviruses by rescreening all positive serum against a recombinant WNV-specific mutant envelope protein that lacks the conserved cross-reactive fusion loop epitope (7).
Furthermore, significantly more cases than controls consumed the highest tertile of gluten, more than 5 g per day, before seroconversion
2) Study of seroconversion
from negative to positive in HBV and HCV infection is an important method to access the efficacy of infection control measures in any dialysis unit.
Even as antiretroviral therapies began making inroads into the AIDS epidemic, the virulence of HIV-1 increased and the time from seroconversion
to a significant CD4-cell drop was cut in half, investigators reported at the Conference on Retroviruses and Opportunistic Infections 2014.
Leung, who heads the division of pediatric allergy and immunology at National Jewish Health, Denver, reported that seroprotection and seroconversion
rates for the three influenza strains included in the vaccine (B, H1N1, and H3N2) were not significantly different for AD and control subjects who received intradermal vaccination.
According to the results, an increased hazard ratio of islet autoantibody seroconversion
was associated with respiratory infections during the first six months of life and ages 6 to almost 12 months.
12) The HPA reports have shown that the Ortho HCVcAg assay is the most sensitive kit available in terms of "timing analysis" on the commercial seroconversion
panels, when compared to nine other enzyme immuno assays including the Murex Ag/Ab combination assay and the Monolisa Ultra Ag/Ab assay.
A cohort of human immunodeficiency virus (HIV)-infected individuals with documented vaccine-induced hepatitis B surface antibody (HBsAb) seroconversion
was evaluated retrospectively to determine factors associated with loss of protective levels of HBsAb.
At the end of 1 (52weeks) and 2 (96weeks) HBeAg seroconversion
rates were 62 % and 86% while HBsAg seroconversion
was 8% and 13% respectively.
Results also showed that men infected with HIV maintained viral loads associated with a high risk of HIV transmission for around three-quarters of the time during the two years after seroconversion
, despite the fact that the majority were not eligible for antiretroviral treatment owing to having CD4 cell counts above 350 cells/mm[m.
Both studies evaluated the activity of Gardasil in two ways--by measuring geometric mean titer antibody * activity produced by the vaccine against the four HPV types, and by measuring seroconversion
rates for HPV-6, 11, 16, and 18.