Hepatitis B Vaccination and Waning Hepatitis B Immunity in Persons Living with HIV

AbstractPurpose of ReviewPersons with HIV are at a higher risk for acquiring HBV (hepatitis B virus) than the general population due to shared modes of transmission and are significantly more likely to develop and die from sequelae of chronic HBV infection. Early vaccination is key to achieving HBV protective immunity, but response rates are still much lower than in the general population, ranging from 35 to 70%. Individuals with HIV also experience more rapidly waning immunity than those without HIV. Strategies to augment initial response and improve long-term immunity in individuals with HIV include alterations in dose, frequency, and the use of immune adjuvants.Recent FindingsRecent studies have focused on the use of different vaccine formulations, the use of vaccine adjuvants, increased number and strength of vaccine dosages, increased dose frequency, alternative routes of administration, dual vaccinations, and the use of booster vaccines. Although no consensus has been reached on the use of certain vaccination regimens, three and four double-dose vaccine schedules via the intramuscular route have demonstrated higher initial response rates. Early vaccination when CD4 cell counts are greater than 350/mm3 with low viral loads has been shown to improve initial response, along with completion of immunization series. Adjuvants such as TLR4 and TLR9 agonists appear to improve response to HBV vaccination, but further research is needed in individuals with HIV.SummaryPersons with...
Source: Current HIV/AIDS Reports - Category: Infectious Diseases Source Type: research

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Conclusion Enthusiasm unabated, however, new tenofovir-sparing antiretroviral regimens are becoming popular and might account for a resurgence of OBI in the HIV setting.
Source: European Journal of Gastroenterology and Hepatology - Category: Gastroenterology Tags: Original Articles: Hepatology Source Type: research
CONCLUSIONS: A tailored practice improvement plan can be envisioned to achieve an optimally functioning STI care continuum. PMID: 31468743 [PubMed - in process]
Source: Journal of the International AIDS Society - Category: Infectious Diseases Tags: J Int AIDS Soc Source Type: research
This article aims to present the hepatitis B (hepatitis B surface antigen - HBsAg) and C (anti-HCV) seroprevalence estimates and risk factors as per the 8th edition of the Conscript Survey performed in 2016. This cross-sectional study was conducted among conscripts across Brazil aged 17 to 22 years from August to December 2016. It included a self-reported questionnaire and blood testing for syphilis, human immunodeficiency virus (HIV), and hepatitis B and C. In total 38,247 conscripts were enrolled; after applying exclusion criteria, 37,282 conscripts were included. The estimated HBsAg and anti-HCV prevalence rates were ...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Observational Study Source Type: research
This study has several limitations. Frist, HCV exists in a quasispecies form in human body (Martell et al., 1992). It will be better to obtain a single full-length genome sequence from a single virus. However, because of failure in amplification of near full-length HCV genome (>5000 bps), we amplified and sequenced 10 overlapping HCV genomic segments to obtain the whole genome sequence. Therefore, the genomic sequences obtained in this study contain some ambiguous (or degenerate) nucleotides (quasispecies population). Second, previous studies showed that vast majority of IDUs in Yunnan, especially in the China-Myanmar b...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Heinz Kohler1*, Anastas Pashov2 and Thomas Kieber-Emmons3 1Department of Microbiology and Immunology, University of Kentucky, Lexington, KY, United States2Stephan Angelov Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria3Department of Pathology, Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR, United States The promise of idiotype-based therapeutics has been disappointing forcing a new look at the concept and its potential to generate an effective approach for immunotherapy. Here, the idiotype network theory is revisited with regard to...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Christine I. Alston1,2 and Richard D. Dix1,2* 1Department of Biology, Viral Immunology Center, Georgia State University, Atlanta, GA, United States 2Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA, United States Suppressor of cytokine signaling (SOCS) proteins provide selective negative feedback to prevent pathogeneses caused by overstimulation of the immune system. Of the eight known SOCS proteins, SOCS1 and SOCS3 are the best studied, and systemic deletion of either gene causes early lethality in mice. Many viruses, including herpesviruses such as herpes simplex virus and cytomega...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusions Apart West Nile virus (78), thousands of congenital microcephaly cases, fetal brain tissue damage and neurological syndromes have been associated with ZIKV infection. Unfortunately, the epidemics of this mosquito born, and a relative stable virus is on a rise. Although congenital microcephaly is a rare disorder however, due to lack of standardized diagnostic test facilities, the incidence in the geographically widespread ZIKV epidemic regions is higher. Animals studies showed that ZIKV is a neurotropic virus. It directly targets the developing embryonic brain cells by inducing apoptosis, cell-cycle arrest, and...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
In this study, we investigated the immunological changes in the levels of monocytes and Tregs and the associations between these cell types in HIV-1-infected MSM with syphilis. Methods Study Participants We enrolled 81 participants in this study. These individuals were assigned to four groups on the basis of serologic testing and HIV-1 results, namely, the rapid plasma reagin (RPR+) group, the CHI group, the CHI&RPR+ group, and the healthy control group. HIV-1 infection status was determined with the HIV-1/2 antigen/antibody combo enzyme immunoassay (Beijing Wantai Biological Medical Company, Beijing, China). Positive ...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusions: These finding suggest that Poly-ICLC could be safely used for inducing transient innate immune responses in treated HIV+ subjects indicating promise as an adjuvant for HIV therapeutic vaccines. Trial Registration: www.ClinicalTrials.gov, identifier: NCT02071095. Introduction Innate immune dysregulation during HIV infection hinders the formation of anti-HIV adaptive immunity (1–6) resulting in rampant viral dissemination and progression to AIDS. Adherence to combination anti-retroviral therapy (cART) regimens controls viremia, restores CD4+T cell counts and reverses immune dysfunction to a larg ext...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
(BEIJING) — Chinese investigators said Thursday tests on a batch of a plasma product feared to have been contaminated with HIV have turned up negative for the virus that causes AIDS. The result appears to have headed off the possibility of yet another scandal involving medical products in the country. Incidents include the falsifying of production records for rabies vaccines that prompted a nationwide crackdown on the industry and the injecting of other faulty vaccines. Public outrage over such scandals has alarmed the leadership of the ruling Communist Party, moving it to respond more quickly and firmly than in the ...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized China onetime Source Type: news
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