scholarly journals Hepatitis B Virus Infection in Vaccinated Children and Adolescents with HBsAg-positive Parents: Is Routine Vaccination Sufficient?

Health Scope ◽  
2022 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Alireza Bakhshipour ◽  
Manijeh Khalili ◽  
Raheleh Rafaiee
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Hepatitis B Surface Antigen ◽  
Public Health Problem ◽  
Exposed Group ◽  
High Rate ◽  
Childhood Vaccination ◽  
Intradermal Vaccination ◽  
Significant Difference ◽  
B Virus

Background: Hepatitis B virus (HBV) is a severe public health problem in Iran. This study was conducted to investigate the intrafamilial transmission of HBV in vaccinated children whose one or both parents were positive for hepatitis B surface antigen (HBsAg). Methods: In a study with retrospective cohort design, 110 exposed cases with HBsAg-positive parent(s) were compared with 110 unexposed controls of the same sex and age groups. The participants were directly asked about demographic characteristics, medical history, and vaccinations. Blood samples were collected and analyzed for HBV infection markers using the ELIZA method. Results: Overall, 1.8% HBsAg (P = 0.15) and 13.6% hepatitis B core antibody (HBcAb) (P < 0.0001) positivity rates were detected in the exposed group. The hepatitis B surface antibody titer (HBsAb) showed that 34.5% of cases and 56.3% of controls had HBsAb levels > 10 IU/L. There was a significant difference in the protective HBsAb level between the two groups (P < 0.0001). There were significant associations between HBsAb level and gender in the exposed group and decreased HBsAb levels and age. Conclusions: The high rate of positive HBcAb and HBsAg and decreasing HBsAb levels with age in this study indicate that routine childhood vaccination programs are inadequate in preventing HBV transmission and vaccine routes changing or further booster vaccination is essential. Effective case finding in vaccinated children with HBsAg-positive parents, intradermal vaccination, and hepatitis B immunoglobulin in newborns with HBsAg-positive fathers are suggested.

scholarly journals Age-wise and Gender-wise Prevalence of Hepatitis B Virus (HBV) Infection in Lahore, Pakistan

2019 ◽  
Vol 01 (04) ◽  
pp. 20-28
Author(s):  
Aqib Nazeer ◽  
Shahid Ali ◽  
Imran Tipu
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Hepatitis B Surface Antigen ◽  
Hbv Infection ◽  
Age Group ◽  
Pakistani Population ◽  
Blood Samples ◽  
Significant Difference ◽  
B Virus ◽  
And Gender

Background The prevalence of hepatitis B virus (HBV) in the Pakistani population has been reported previously, however, studies with a city-oriented approach and focus on age and gender distribution are very limited. Therefore, the current study was designed to unravel the age-wise and gender wise prevalence of HBV in Lahore, Pakistan. Methods A total of 350 blood samples of both male and female patients who visited National Genetic Laboratory, Lahore between February 2019 and July 2019 and who were suspected of HBV infection were screened. Sandwich based ELISA was used to detect rapid hepatitis B surface antigen (HbsAg) according to the manufacturer’s instruction. Real time PCR was used to detect HBV using HBV Rotor Gene PCR kit. Results Out of 350 blood samples screened for HBV infection (n= 350), 180 (51.43%) were of males and 170 (48.57%) were of females. Mean age (years) with SD (standard deviation) of the screened population was 37.22 ± 12.16 years. Overall, 224 samples (64%) were found to be positive for HBV infection. In our study, the number of females with this infection (52.24%) was slightly higher than males (47.76%). However, we observed no statistically significant difference (p = 0.225) between them. Conclusion Our study concludes that HBV is highly prevalent in Lahore, Pakistan. Females are slightly more susceptible to HBV infection as compared to males. This study also reports that HBV is more prevalent in the 20-40 age group.

scholarly journals Seroprevalence of Hepatitis B (HBsAg) Infection among Pregnant Women Attending Specialist Hospital Yola, Adamawa State, Nigeria

2021 ◽  
pp. 41-47
Author(s):  
Godly Chessed ◽  
Kefas Hellamada Kwala ◽  
Aminu Innocent Asika ◽  
Sati Danjuma
Keyword(s):  
Hepatitis B Virus ◽  
Blood Transfusion ◽  
Hepatitis B ◽  
Marital Status ◽  
Pregnant Women ◽  
Surface Antigen ◽  
Educational Level ◽  
Hepatitis B Surface Antigen ◽  
Public Health Problem ◽  
B Virus

Infection due to Hepatitis B virus is a serious public health problem worldwide, in spite of productive vaccine. Pregnant women infected with hepatitis B virus can transmit the infection to their fetuses and newborns. The aim of the study was to determine the seroprevalence of Hepatitis B infection among pregnant women attending antenatal care at Specialist Hospital Yola. A total of three hundred and thirteen (313) pregnant women were randomly selected for this study. Hepatitis B status was determined by the presence of Hepatitis B surface antigen (HBsAg). A structured questionnaire was used for the data collection. Sera from volunteers were collected and tested for hepatitis B surface antigen. Seroprevalence was determined based on age group, educational level, occupation, marital status, religion and history of blood transfusion. The seroprevalence of HBsAg among consented antenatal attendees was 17(5.43%). The study found highest seroprevalence of HBsAg among the pregnant women in the age bracket 26-35 years 52.94%, 52.94% in women with primary school education, 41.18% among the unemployed, 94.12% among the married women, 70.59% among Muslim women, and 76.47% among women that had blood transfusion. The study also revealed that there is a significant relationship between HBsAg and (educational level, marital status) of the study participants (P < 0.05). The Seroprevalence of HBsAg among antenatal attendees at Specialist Hospital Yola, Nigeria, is on the high side. Therefore, early screening of pregnant women for hepatitis at antenatal clinic, would contribute greatly to the timely management of the disease and will prevent possible transmission to their neonates.

scholarly journals Viral Superinfection in Previously Unrecognized Chronic Carriers of Hepatitis B Virus with Superimposed Acute Fulminant versus Nonfulminant Hepatitis

1999 ◽  
Vol 37 (1) ◽  
pp. 235-237 ◽  
Author(s):  
Chia-Ming Chu ◽  
Chau-Ting Yeh ◽  
Yun-Fan Liaw
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Acute Hepatitis ◽  
Hepatitis A ◽  
Hepatitis A Virus ◽  
Hepatitis B Surface Antigen ◽  
Significant Difference ◽  
B Virus ◽  
Hdv Infection

The role of viral superinfection in hepatitis B surface antigen carriers with superimposed fulminant (n = 60) versus nonfulminant (n = 90) acute hepatitis was studied. The frequency of hepatitis A virus (HAV) (0 versus 2.2%), HCV (18.3 versus 21.1%), HDV (15.0 versus 7.8%), and HEV (1.7 versus 4.4%) infection showed no significant difference, while simultaneous HCV and HDV infection was significantly more prevalent in the former (8.3 versus 0%). Only 3.6% of fulminant cases and 3.3% of nonfulminant controls were HGV RNA positive.

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 &lt; .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.

Prevalence of Hepatitis B amgonst Asymptomatic Persons Visiting Braithwait Memorial Specialist Hospital (BMSH), Nigeria

2019 ◽  
pp. 1-7
Author(s):  
B. U. Fajoyomi ◽  
C. D. Onwukwe ◽  
G. Alukara
Keyword(s):  
Hepatitis B Virus ◽  
Virus Infection ◽  
Hepatitis B ◽  
Surface Antigen ◽  
Hepatitis B Surface Antigen ◽  
Public Health Problem ◽  
Test Strip ◽  
Major Public Health Problem ◽  
Hepatitis B Virus Infection ◽  
B Virus

Hepatitis B virus infection is a major public health problem; it infects more than 400 million people worldwide. In recent years, the overall prevalence of this virus has declined due to its vaccine that is now in circulation. Hepatitis B virus causes liver injury by an immune response against the virus-infected liver cells but it’s not directly cytopathic, but immunosuppression enhances replication and can lead to direct cytotoxicity. In this study, A survey was conducted amongst 200 randomly selected general out-patients within the ages of 10-80 years with pregnant women inclusive who are attending the Braithwait Memorial Specialist Hospital (BMSH) Nigeria, in order to ascertain the prevalence of Hepatitis B virus infection among patients attending Braithwait Memorial Specialist Hospital in Rivers State, Nigeria and the general knowledge of the people about this highly infectious disease. Sera collected were screened for the presence of Hepatitis B surface antigen () using Labacon Diagnostic Test Strip (Hangzhou Biotest Biotech Co., Ltd China) and a total of 32 out of the 200 respondents tested positive of Hepatitis B surface antigen, giving a percentage of 16% (32/200).Questionnaires were distributed to the subjects in order to ascertain their perceptions about the disease, and to obtain useful socio-demographic information. There was a poor management and prevention control of the disease and this may have accounted for the prevalence of 16% in the study population.

scholarly journals Sero-Epidemiological Analysis of Hepatitis B Virus Infection among Apparently Healthy Young Adults in Omuaran-Community

2020 ◽  
pp. 31-38
Author(s):  
James A. Ndako ◽  
Stephen Ojo ◽  
Victor T. Dojumo ◽  
Victor O. Fajobi ◽  
Ilochi Ifeanyi ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Hepatitis B Surface Antigen ◽  
Demographic Data ◽  
Behavioral Pattern ◽  
Health Concern ◽  
Prevalence Survey ◽  
Significant Difference ◽  
B Virus ◽  
Apparently Healthy

Hepatitis B (HBV) infection is an important public health concern all over the globe. As a result of its asymptomatic nature, its prevalence among apparently healthy individuals becomes relevant for studies. Hence the prevalence survey of hepatitis B virus was conducted among apparently healthy young individuals. A total of two hundred samples were screened from volunteer subjects for Hepatitis B surface Antigen (HBsAg), using the one step immune-chromatographic test strip manufactured by Dia Spot® Diagnostics. Questionnaires were administered to obtain relevant information and demographic data. Overall result showed that 11 (5.5%) of the subjects tested were found to be positive. The highest prevalence was found among subjects aged 22-26 years with 7.8% prevalence compared to those aged 12-21 years with 4.4% prevalence (P=0.1012); (p˃0.05). Based on demographic factors, female workers tend to demonstrate high positivity of 12.5% compared to male with 10.0% prevalence, (P=0.4929); (p˃0.05). Subjects involved with risky behavioral pattern by the use of unsterilized objects recorded a high prevalence of 5.3%, (P=0.5748); (p˃0.05) among female subjects. Serum Alanine amino-tranferases result showed no significant difference among the positive subjects. The results showed some measure of prevalence among the study population. It therefore becomes pertinent that the community be enlightened on the possible risk of infection by the virus. Efforts should be made to ensure vaccination against this infectious agent is intensified.

scholarly journals Seroprevalence of Hepatitis B Virus in Rural and Urban Areas in Togo

2020 ◽  
Author(s):  
Banfitebiyi Gambogou ◽  
Holaly E. Gbekley ◽  
Mabrouka Bouacha
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Rural Areas ◽  
Urban Areas ◽  
Public Health Problem ◽  
Biological Data ◽  
High Rate ◽  
Urban Zone ◽  
B Virus ◽  
High Prevalence

Infection with the hepatitis B virus (HBV) is a public health problem in many parts of the world, due to its frequency, complications and socio-economic consequences. This study aimed to assess the seroprevalence of hepatitis B virus infection in rural areas and in urban areas. This cross-sectional study assessed the prevalence of HBV infection from 2015-2018 at CHR-Sokod&eacute; and USP of Ogaro. Biological data of 3000 participants (500 per year in each zone) enrolled and results of HBsAg were assessed during the study period. Female are represented 60% with average age comprised between [20, 29] years old. The high rate of participants enrolled (45.10%) are come for the monitoring of pregnancy. The prevalence of VHB during the study are 20.33% (610/3000), high prevalence (6.27%) and the means of VHB prevalence are shown in the age range between [30; 39] with 12.17% (365/3000) of female and 8.17% (235/3000) of male are positive after diagnostic detection of HBsAg (antigen of Hepatitis B virus). The prevalence of HBV in rural zone (Ogaro) are 5.23% and 15.07% in urban zone (Sokod&eacute;) and the high prevalence (17.50%) are shown in urban zone. The high prevalence of young suggests that some effort will be due to sensibilized young for HBV sexual transmission and the way of prevention. In addition, some research would be done in research of alternative therapy against this infection.

scholarly journals Seroprevalence and associated risk factors for Hepatitis B virus infection among barbers and their clients in two cities in Cameroon

2019 ◽  
Vol 34 (1) ◽  
Author(s):  
Joël Brice Ngoupa ◽  
Patrick Achiangia Njukeng ◽  
Eric Ngoh Akwa ◽  
Michel Kengne ◽  
Ubald Tamoufe ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Public Health Problem ◽  
Hbv Infection ◽  
Research Centre ◽  
Significant Difference ◽  
B Virus ◽  
Two Cities ◽  
Associated Risk Factors

Background: Hepatitis B virus (HBV) infection is a serious public health problem in Africa and worldwide. Barbers are regularly in contact with the blood fluid of their clients, who could develop skin cuts and abrasions during shaving practices. There is scarcity of information about HBV among barbers in Cameroon. This study presents seroprevalence and associated risk factors for HBV infection among barbers and their clients in two cities (Yaounde and Douala) in Cameroon.Methods: Three millilitres of venous blood was collected into EDTA tubes from each of the 262 consenting participants. Plasma was obtained and transported to the Military Health Research Centre (CRESAR) for analysis. Sociodemographic data were collected using a structured questionnaire. The prevalence of Hepatitis B surface antigen (HBsAg) was determined by a rapid diagnostic test (DiaSpot HBsAg) and confirmed with an ELISA sandwich test. Data were analysed using SPSS, version 21.Results: Thirty-three participants tested positive, giving an overall prevalence of 12.6%. A seroprevalence of 15.0% and 10.6% was obtained for barbers and their clients respectively. In Yaounde, the frequency of HBsAg among barbers and their clients was 14.9% and 10.4% respectively, while in Douala it was 15.4% and 11.1% respectively. However, no statistically significant difference was observed in these groups. There was also no statistically significant association between the knowledge of the modes of HBV transmissions and HBV status.Conclusion: The present study reveals that the rate of HBsAg among the study population is high in Cameroon and most people are not still properly sensitised regarding prevention measures.

How Far we are towards Eradication of HBV Infection

2015 ◽  
Vol 24 (4) ◽  
pp. 473-479 ◽  
Author(s):  
Mihai Voiculescu
Keyword(s):  
Immune Response ◽  
Hepatitis B Virus ◽  
T Cell ◽  
Hepatitis B ◽  
T Cell Receptors ◽  
Hepatitis B Surface Antigen ◽  
Hbv Infection ◽  
Major Health Problem ◽  
Cell Receptors ◽  
B Virus

Hepatitis B virus (HBV) infection is a major health problem with an important biological and a significant socio-economic impact all over the world. There is a high pressure to come up with a new and more efficient strategy against HBV infection, especially after the recent success of HCV treatment. Preventing HBV infection through vaccine is currently the most efficient way to decrease HBV-related cirrhosis and liver cancer incidence, as well as the best way to suppress the HBV reservoir. The vaccine is safe and efficient in 80-95% of cases. One of its most important roles is to reduce materno-fetal transmission, by giving the first dose of vaccine in the first 24 hours after birth. Transmission of HBV infection early in life is still frequent, especially in countries with high endemicity.Successful HBV clearance by the host is immune-mediated, with a complex combined innate and adaptive cellular and humoral immune response. Different factors, such as the quantity and the sequence of HBV epitope during processing by dendritic cells and presenting by different HLA molecules or the polymorphism of T cell receptors (TOL) are part of a complex network which influences the final response. A new potential therapeutic strategy is to restore T-cell antiviral function and to improve innate and adaptive immune response by immunotherapeutic manipulation.It appears that HBV eradication is far from being completed in the next decades, and a new strategy against HBV infection must be considered. Abbreviations: ALT: alanine aminotransferase; APC: antigen presenting cells; cccDNA: covalently closed circular DNA; HBIG: hepatitis B immunoglobulin; HbsAg: hepatitis B surface antigen; HBV: hepatitis B virus; HCC: hepatocellular carcinoma; CTL: cytotoxic T lymphocyte; IFN: interferon; NUC: nucleos(t)ide analogues; pg RNA: pre genomic RNA; TLR: toll-like receptors; TOL: T cell receptors.

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