scholarly journals Antibody Levels in Ethiopian Children Five Years after Vaccination with Two Different Doses of Hepatitis B Vaccine: Is There a Need for Booster Vaccine?

1998 ◽  
Vol 12 (1) ◽  
pp. 57-60 ◽  
Author(s):  
Edemariam Tsega ◽  
John Horton ◽  
Erik Nordenfelt ◽  
B-J Hansson ◽  
Belachew Tafesse ◽  
...  
Keyword(s):  
Hepatitis B ◽  
Geometric Mean ◽  
Hepatitis B Vaccine ◽  
Hbv Infection ◽  
B Virus ◽  
Antibody Titres ◽  
Antibody Levels ◽  
Surface Antibody ◽  
Different Doses

It was hypothesized that, following effective initial vaccination, a booster dose of hepatitis B vaccine will not be necessary in areas of hyperendemicity for hepatitis B virus (HBV) infection. A total of 314 Ethiopian children, ranging from two to 14 years old, were alternatively vaccinated with 10 and 20 µg hepatitis B vaccine doses, using the initial, one- and six-month schedule. Five years later, 210 of the vaccinees were retested for anti-HBV surface antibody titres. Both 10 and 20 µg doses of hepatitis B rDNA yeast vaccine were equally immunogenic and protective against HBV infection for at least five years despite marked reduction of mean antibody levels and geometric mean titres, with 11% of the vaccinees showing antibodies below the protective level. For firm further recommendations a longer follow-up period of vaccinees is suggested.

scholarly journals Persistence of hepatitis B surface antibody levels after vaccination with a recombinant hepatitis B vaccine. A 3-year follow-up study.

2000 ◽  
Vol 42 (3) ◽  
pp. 147-150 ◽  
Author(s):  
Tetsunori Ozaki ◽  
Hiroshi Mochizuki ◽  
Yumiko Ichikawa ◽  
Yoichi Fukuzawa ◽  
Shigeru Yoshida ◽  
...  
Keyword(s):  
Hepatitis B ◽  
Hepatitis B Vaccine ◽  
Recombinant Hepatitis ◽  
Follow Up Study ◽  
Antibody Levels ◽  
Surface Antibody

scholarly journals Clinicopathological characteristics and prognosis of hepatitis B associated membranous nephropathy and idiopathic membranous nephropathy complicated with hepatitis B virus infection

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ruiqiang Wang ◽  
Yunqi Wu ◽  
Bowen Zheng ◽  
Xiaofeng Zhang ◽  
Dongyue An ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Membranous Nephropathy ◽  
Renal Tissue ◽  
Hbv Infection ◽  
Idiopathic Membranous Nephropathy ◽  
Glutamic Pyruvic Transaminase ◽  
Significant Difference ◽  
B Virus

AbstractThe main objective of this study is to analyze the clinical and pathological features and prognosis of patients with Hepatitis B associated membranous nephropathy (HBV-MN) and idiopathic membranous nephropathy (IMN) complicated with hepatitis B virus (HBV) infection. This study will provide more basis for diagnosis and prognosis evaluation. A total of 50 patients with HBV-MN were included in this study. 56 IMN patients complicated with HBV infection diagnosed during the same period formed the control group. Parameters including blood routine, urine routine and plasma levels of albumin (ALB), serum creatinine (SCR), blood urea nitrogen (BUN), urea acid (UA), total cholesterol (T-CHO), triglycerides (TG), complement C3 and C4, glutamic pyruvic transaminase (ALT), glutamic pyruvic transaminase (AST), 24-h urinary protein quantification (24 h-TP), renal phospholipase A2 receptor (PLA2R) and HBV related markers during the hospitalization and outpatient follow-up study period were collected for all the patients. The proportion of male patients was high in both groups. The average age of the HBV-MN group was 37.2 ± 14.187 years old, it was younger compared with the IMN group (P = 0.003). Nephrotic syndrome was the major clinical manifestation among patients. There was no significant difference between the two groups in the levels of anemia, microscopic hematuria, renal dysfunction, liver dysfunction, liver cirrhosis. The level of serum C3 and C4 in the HBV-MN group was lower compared with the IMN group (P = 0.002, P = 0.014). In the HBV-MN group, serum HBV markers were negative in 6 (12%) patients, 4 patients (8%) were positive for PLA2R in serum, and 5 patients (10%) were positive for PLA2R in renal tissue. Stronger IgG1 and C1q and weaker IgG4 staining were found in HBV-MN group renal tissues (P = 0.003, P = 0.025, and P = 0.001, respectively). There were no statistical differences compared with serum and renal PLA2R between HBV-MN and IMN groups (P = 0.098, P = 0.109). During the 1-year follow-up, there was no significant difference in complete remission rate between the two groups (P = 0.7739). Renal biopsy is crucial to diagnose HBV-MN. IgG subtypes in the HBV-MN group were mainly IgG1 deposition, while those in IMN complicated with HBV infection group were mainly IgG4 deposition. When HBV-associated antigen and PLA2R are present in renal tissue, lower level of serum C3 and C4, high intensity of renal C1q and IgG1 is more supportive of HBV-MN. The positive of PLA2R in serum and renal tissue in differentiating HBV from IMN complicated with HBV infection remains to be discussed.

scholarly journals Is it Safe for a Mother Infected with Hepatitis B Virus to Breastfeed Her Baby?

2012 ◽  
Vol 35 (1) ◽  
pp. 20-25
Author(s):  
ASM Nawshad Uddin Ahmed ◽  
Md Mahbubul Hoque
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Perinatal Transmission ◽  
Hepatitis B Vaccine ◽  
Hbv Infection ◽  
World Health ◽  
Increased Risk ◽  
Major Mode ◽  
B Virus ◽  
The World

One third of the world’s population has been infected by the hepatitis B virus (HBV), causing an enormous burden of chronic hepatitis, cirrhosis, and hepatocellular carcinoma. Hepatitis B virus is transmitted through contact with blood and blood products, by sexual contact, through close contact between children (horizontal transmission), or by perinatal transmission from a carrier mother to her baby. In Asia, perinatal transmission is the major mode of transmission and those who become infected perinatally with HBV are most likely to develop chronic infection. The question of whether breastfeeding by HBV-positive mothers is an additional mechanism by which infants may acquire HBV infection, has been asked for many years. Although small amounts of hepatitis B surface antigen (HBsAg) have been detected in some samples of breast milk, there is no evidence that breastfeeding by HBV-carrier mothers increase the risk of mother-to-child transmission of HBV. Infants born to known hepatitis B positive women should receive hepatitis B immune globulin (HBIG) and hepatitis B vaccine, effectively eliminating any theoretical risk of transmission through breastfeeding. However, neither screening of pregnant women for HBV infection nor use of HBIG is feasible in most developing countries. Routine immunization of infants with hepatitis B vaccine is therefore recommended by the World Health Organization. Bangladesh has already included hepatitis B vaccine as part of routine childhood immunization in EPI program since 2003. Also the risk must be balanced against the increased risk of morbidity and mortality due to malnutrition and diarrheal or other infectious diseases associated with replacement feeding. Malnutrition is responsible, directly or indirectly, for 6.5 million under 5 deaths annually. Thus, even where HBV infection is highly endemic and immunization against HBV is not available, breastfeeding remains the recommended method of feeding. DOI: http://dx.doi.org/10.3329/bjch.v35i1.10369 BJCH 2011; 35(1): 20-25

scholarly journals Clinicopathological study of mixed cryoglobulinemic glomerulonephritis secondary to Hepatitis B virus infection

2020 ◽  
Author(s):  
CHAO LI ◽  
HANG LI ◽  
WEI SU ◽  
YU-BING WEN ◽  
WEI YE ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Renal Disease ◽  
Early Stage ◽  
Hbv Infection ◽  
Chinese Patients ◽  
Ultrastructural Studies ◽  
B Virus ◽  
Cryoglobulinemic Glomerulonephritis

Abstract BackgroundCryoglobulinemic glomerulonephritis (CryoGn) caused by hepatitis B virus (HBV) infection was rarely reported. Our study aimed to investigate the clinical features, renal pathology findings, and prognosis in patients with HBV related CryoGn. Methods This was a retrospective study including seven Chinese patients with HBV related CryoGn in a tertiary referral hospital from April 2016 to March 2019. The clinical and pathological data were collected and analyzed.Results Age at renal biopsy was 47±12 years, with female/male ration 3/4. Urine protein was 5.6(3.0, 6.6) g/d and five cases presented with nephrotic syndrome. The baseline eGFR was 23.5 (20.2, 46.3) ml/min per 1.73m2. The extrarenal manifestations included purpura (n=6), arthralgia (n=1), peripheral neuropathy (n=1), and cardiomyopathy (n=1). Six cases had type II cryoglobulinemia with IgMκ, the other one had type III. The median cryocrit was 4.0 (1.0, 15.0) %. Renal pathologic findings on light microscopy: endocapillary proliferative glomerulonephritis (Gn) (n=3), membranoproliferative Gn (n=3), and mesangial proliferative Gn (n=1). On immunofluorescence microscopy, the predominant type of immunoglobulin deposits was IgM(n=5). HBsAg and HBcAg deposits were found in one case. Ultrastructural studies showed granular subendothelial and mesangial electron-dense deposits in all patients and microtubules in one case. All patients received antiviral medications. They were given corticosteroid alone (n=2) or combined with cyclophosphamide (n=4) or mycophenolate mofetil (n=1). Two patients received plasmapheresis. The median follow-up time was 18 (6, 37) months. Four patients got remission, two patients died of pneumonia, and one progressed to end-stage renal disease (ESRD). At endpoint of follow-up, 24hUP was 2.1 (0.8-5.2) g/d, and eGFR was 55.3 (20.7, 111.8) ml/min per 1.73m2. The median cryocrit decreased to 1.0 (0, 5.75) %.ConclusionsThe etiology of mixed CryoGn should be screened for HBV infection. Endocapillary proliferative Gn and membranoproliferative Gn were the common pathologic patterns. Diagnosis and treatment in early-stage benefit patients’ renal outcomes. Immunosuppressive therapy should be considered for severe renal disease, based on efficient antiviral therapy.

Horizontal Transmission of Hepatitis B Virus Infection to United States-Born Children of Hmong Refugees

PEDIATRICS ◽  
1992 ◽  
Vol 89 (2) ◽  
pp. 269-273
Author(s):  
Marjorie B. Hurie ◽  
Eric E. Mast ◽  
Jeffrey P. Davis
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Hepatitis B Surface Antigen ◽  
Horizontal Transmission ◽  
Vaccination Schedule ◽  
Hepatitis B Vaccine ◽  
Hbv Infection ◽  
Childhood Vaccination ◽  
B Virus ◽  
Household Members

There is evidence that hepatitis B virus (HBV) transmission continues among Southeast Asian refugees after resettlement. To determine the prevalence of HBV infection (hepatitis B surface antigen [HBsAg] positive or core antibody positive) and modes of transmission in Hmong refugee households in Wisconsin, results of serologic tests were reviewed for 429 US-born children not previously vaccinated with hepatitis B vaccine and 754 of their Asian-born household members. The prevalence of HBV infection was 14% (62/429) among all US-born children, 30% (21/69) among children whose mothers were HBsAg-positive, and 11% (41/360) among children whose mothers were HBsAg-negative. Among children whose mothers were HBsAg-negative, the prevalence of HBV infection increased with increasing age (χ2 test for trend = 5.6, P .02) and was related to the household presence of HBsAg-positive sibling(s) (relative risk 4.0; 95% confidence interval = 1.5, 9.3; P < .001). Of the 62 infected children, 13 (21%) lived in households with no HBsAg-positive household members. US-born children of Hmong refugees apparently acquire HBV infection through both horizontal and perinatal transmission. These findings emphasize the importance of routinely integrating hepatitis B vaccine doses into the childhood vaccination schedule for all infants whose parents are from areas where HBV infection is highly endemic. In addition, the findings support the need for pediatricians to consider vaccinating older children (up to age 7 years) whose parents are from HBV-endemic areas.

Continuing Risk for Hepatitis B Virus Transmission Among Southeast Asian Infants in Louisiana

PEDIATRICS ◽  
1995 ◽  
Vol 96 (6) ◽  
pp. 1113-1116
Author(s):  
Francis J. Mahoney ◽  
Margaret Lawrence ◽  
Cathy Scott ◽  
Quan Le ◽  
Steve Lambert ◽  
...  
Keyword(s):  
Hepatitis B ◽  
Southeast Asian ◽  
Hepatitis B Vaccine ◽  
Hbv Infection ◽  
Hepatitis B Vaccination ◽  
Chronic Hbv Infection ◽  
Asian And Pacific Islander ◽  
B Virus ◽  
Asian Children ◽  
Chronic Hbv

Objective. Implementation and evaluation of a hepatitis B vaccination program for Southeast Asian infants in Louisiana. Methods. A baseline seroprevalence survey of hepatitis B virus (HBV) infection in US-born Southeast Asian children was conducted in 1991 before the implementation of a vaccination program. Hepatitis B vaccination and postvaccination serologic testing of survey participants 10 years of age and younger was performed. Eighteen months after the hepatitis B vaccine was integrated into infant immunization schedules in July 1993, a vaccination coverage survey was performed. Results. Baseline serologic testing was conducted on 96% of persons from 225 randomly selected households in a Southeast Asian community in Louisiana. Of 676 US-born children, 28 (4.1%) had chronic HBV infection; 61% of children with chronic HBV infection were born to hepatitis B surface antigen (HBsAg)-negative women. Among children born to HBsAg-negative women, the prevalence of chronic HBV infection increased with age, reaching 7.3% for children 13 to 16 years of age. Children born to HBsAg-negative women and living with carriers were 5.4 times more likely to have evidence of HBV infection than were children who did not live with carriers. Before the survey, only one child had received three doses of hepatitis B vaccine. In July 1993, 43% of Southeast Asian infants 9 to 18 months of age born in Louisiana had received three doses of hepatitis B vaccine. Infants who received immunizations from private providers were more likely to be fully vaccinated than were infants who received services from public sector clinics (prevalence ratio, 2.1; 95% confidence interval, 1.4,3.1). Conclusions. HBV transmission occurs throughout childhood in US-born Southeast Asian children, and the prevalence of chronic HBV infection approaches that of the country of origin. Few US-born Southeast Asian children have received hepatitis B vaccine. Because of the high rates of early childhood HBV transmission and the high risk of chronic infection in Asian and Pacific Islander communities, prevention efforts should be enhanced to ensure that all Asian and Pacific Islander infants receive hepatitis B vaccine in the first 12 months of life and that older children are vaccinated.

scholarly journals Update on Diagnosis, Management, and Prevention of Hepatitis B Virus Infection

1999 ◽  
Vol 12 (2) ◽  
pp. 351-366 ◽  
Author(s):  
Francis J. Mahoney
Keyword(s):  
Liver Disease ◽  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Hepatitis B Vaccine ◽  
Hbv Infection ◽  
World Health ◽  
Chronic Hbv Infection ◽  
Chronic Hepatitis B Virus ◽  
B Virus ◽  
Chronic Hbv

SUMMARY Acute and chronic hepatitis B virus (HBV) infection is a leading cause of liver disease worldwide. It is estimated that approximately 350 million people worldwide have chronic HBV infection and that 1 million persons die each year from HBV-related chronic liver disease. In the past decade, significant progress in the understanding of the molecular virology and pathogenesis of HBV infection has been made. In addition, effective treatment modalities have been developed for persons with chronic infection. Worldwide, prevention of HBV transmission has become a high priority. In 1992, the Global Advisory Group to the World Health Organization recommended that all countries integrate hepatitis B vaccine into national immunization programs by 1997. Currently, 80 countries have done so and several others are planning to. Many countries have reported dramatic reductions in the prevalence of chronic HBV infection among children born since the hepatitis B vaccine was introduced into infant immunization schedules. Recent reports from Taiwan indicate a reduction in the incidence of liver cancer among children as a result of widespread hepatitis B vaccination programs.

Comparison of Higher-Dose Intradermal Hepatitis B Vaccination to Standard Intramuscular Vaccination of Healthcare Workers

2000 ◽  
Vol 21 (4) ◽  
pp. 264-269 ◽  
Author(s):  
Elizabeth A. Henderson ◽  
Thomas J. Louie ◽  
Karam Ramotar ◽  
Donna Ledgerwood ◽  
Karen Myrthu Hope ◽  
...  
Keyword(s):  
Hepatitis B ◽  
Geometric Mean ◽  
Cost Effective ◽  
Hepatitis B Vaccine ◽  
Hepatitis B Vaccination ◽  
Random Allocation ◽  
Intradermal Vaccination ◽  
B Virus ◽  
Microparticle Enzyme Immunoassay

Objective.To compare the immunogenicity of hepatitis B vaccine administered via intradermal (ID) versus intramuscular (IM) route.Methods:Subjects chose either to specify the route of immunization or to undergo random allocation to vaccination by the ID (0.15 mL) or the IM (1.0 mL) route. Yeast-derived recombinant hepatitis B vaccine was given at 0, 30, and 180 days. Hepatitis B surface antibody (HBsAb) and hepatitis B core antibody (HBcAb) were measured by microparticle enzyme immunoassay.Results:763 subjects were enrolled. Baseline screening identified 65 subjects (8%) who were positive for HBsAb or HBcAb. Vaccination was completed by 590 (85%) of 698 enrollees (370 ID, 220 IM). Seroconversion rates (geometric mean titers [GMT]>0 IU/mL HBsAb) for those vaccinated ID were 99% and 96% for screening at 9 months and 1 year post-vaccination, respectively; subjects vaccinated intramuscularly had similar rates of 95% and 96%. Seropositivity rates (GMT ≥ 10 IU/mL HBsAb) showed a similar pattern, with 95%, 92%, and 73% at 9 months and 1 and 2 years, respectively, for those vaccinated ID, and 94%, 93%, and 81% for those having IM vaccination. GMT for HBsAb was significantly higher for individuals vaccinated IM than for those vaccinated ID (P<.0001). The GMT ratio for the IM and ID routes decreased over time, being 9.3 at 9 months, 7.8 at 1 year, and 5.9 at 2 years. An unanticipated side effect of intradermal vaccination was skin discoloration at injection sites, which persisted for at least 2 years postvaccination. Two thirds (112/166) of respondents reported that they would have selected the ID route despite the discoloration.Conclusions:Higher-dose ID vaccination (3 vs 1 μg per injection) uses one sixth of the dose required for standard IM vaccination. It is a cost-effective way to vaccinate populations against hepatitis B virus, but the long-term efficacy of the ID route must still be investigated.

scholarly journals Compliance with and response to hepatitis B vaccination in remaining quilombo communities in Central Brazil

2009 ◽  
Vol 25 (4) ◽  
pp. 738-742 ◽  
Author(s):  
Ana Rita C. Motta-Castro ◽  
Selma A. Gomes ◽  
Clara F. T. Yoshida ◽  
Juliana C. Miguel ◽  
Sheila A. Teles ◽  
...  
Keyword(s):  
Hepatitis B ◽  
Geometric Mean ◽  
Hepatitis B Vaccine ◽  
Hepatitis B Vaccination ◽  
Hepatitis B Virus Infection ◽  
Education Programs ◽  
Central Brazil ◽  
Vaccination Scheme ◽  
B Virus ◽  
Male Sex

Compliance with and responses to the hepatitis B vaccine were evaluated in remaining quilombo communities in Central Brazil. A total of 708 individuals who were susceptible to hepatitis B virus infection were invited to participate in the hepatitis B vaccination program in eight communities. Although 567 (80%) individuals received the first dose, only 198 (28%) complied with the full vaccination scheme. Of 148 subjects who agreed to be tested for anti-HBs, 123 (83.1%; 95%CI: 75.9-88.6) responded to the vaccine. A geometric mean titer of 512mIU/mL (95%CI: 342.5-765.3) was found. Male sex and older age were independently associated with non-response. Additional health education programs and alternative hepatitis B vaccine schedules are needed to improve the vaccination coverage in these communities in Central Brazil.

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