Risk of hepatitis B surface antigen seroreversion
after allogeneic hematopoietic SCT.
West Nile Seroreversion
and the Influence of Herd Immunity on Disease Risk in a LongTerm Study of Free-Ranging Birds [master's thesis].
at >18 months of age in HIV-uninfected infants has been described in Malawi, Vietnam, Brazil and the USA.
The limitations include increased rate of negative serology test in both primary and secondary syphilis, increase false-negative non- treponemal antibody test due to prozone reaction, high rate of serological failure to clear non-trepone- mal antibody test after treatment and seroreversion
to negative of specific treponemal antibody tests following treatment.
in subjects receiving antiretroviral therapy during acute/early HIV infection.
Moreover, late seroconversion, persistent seronegativity, and seroreversion
of IgG against HEV have been reported for severely immunocompromized patients, including some infected with HIV (3-5), which brings up the question as to whether prevalence of IgG against HEV is underestimated among severely immunocompromised persons infected with HIV.
One of the cases displayed transient initial HBe seroconversion at 1 week, followed by seroreversion
to positive HBeAg and negative HBeAb at week 3, which was subsequently followed by another seroconversion at week 7 which, this time, was maintained over the course of the following month, when the patient kept up with follow-up visits.
INFLUENCE OF HIV ON THE COURSE OF HEPATITIS B VIRUS INFECTION * Higher rates of chronicity after acute HBV infection * Decreased rates of spontaneous HBsAg and HBeAg seroconversion * Increased rates of HBV DNA replication * More severe liver disease, with increased rates of cirrhosis and hepatocellular carcinoma * Increased rates of liver-related mortality * Increased rates of occult HBV infection * Increased rate of reactivation and seroreversion
with decreasing CD4 counts * Increase risk of HBV flare after starting HAART due to HBV-immune reconstitution inflammatory syndrome (HBV-IRIS) TABLE II.
Discordant testing results could be caused by 1) previous syphilis infection, treated or untreated, with persistence of treponemal antibodies but seroreversion
of nontreponemal antibodies, 2) a false-positive treponemal test result, or 3) early primary syphilis in a person who has yet to develop nontreponemal antibodies.
This process, called seroreversion
, usually occurs only in the last stages of the disease, when the immune system becomes too enfeebled to mount any antibody response to the virus.
Infection rate and spontaneous seroreversion
of anti-hepatitis C virus during the natural course of hepatitis C virus infection in the general population.
However, increasing evidence suggests that treatment of persons with chronic infections can result in seroreversion
and prevent progression of cardiac morbidity (1).