scholarly journals Simple and Feasible Detection of Hepatitis B Virus via Combination of Multienzyme Isothermal Rapid Amplification and Lateral Flow Dipstick Strip

2021 ◽  
Vol 8 ◽  
Author(s):  
Mao-Ling Sun ◽  
Hai-Yun Lai ◽  
Na-Yu Chong ◽  
Dong-Fan Liu ◽  
Zhen-Yi Zhang ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Public Health Problem ◽  
Lateral Flow ◽  
Detection Sensitivity ◽  
Clinical Samples ◽  
Major Public Health Problem ◽  
Lateral Flow Dipstick ◽  
B Virus ◽  
Rapid Amplification

Hepatitis B virus infection is not only a huge burden in the field of social health but also a major public health problem that affects the lives and health of the people. Simple, rapid, feasible detection of HBV is critical for its prevention and spread, especially in the developing countries with low-resource laboratories. To this end, we combined multienzyme isothermal rapid amplification (MIRA) and lateral flow dipstick (LFD) strip to detect HBV. A pair of primers targeting the conserved region of HBV genome was designed and used in MIRA-LFD assay. Our results found that the entire amplification of MIRA-LFD only takes 10 min at 37°C and the dilution of the amplification products was added in the LFD strip and observed by the naked eye after 10 min. The detection sensitivity of this method can reach 10 pg. The 45 clinical samples were detected by MIRA-LFD and real-time PCR. The accuracy rate of MIRA-LFD was 100%. Therefore, these characteristics of our newly developed MIRA-LFD assay make it particularly useful and suitable for detecting HBV in the resource-limited condition.

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 Pleural Effusion Related to Chronic Hepatitis B Virus Reactivation: A Rare Association

2021 ◽  
Author(s):  
Ana Oliveira ◽  
Diana Valadares ◽  
Filipe Nery
Keyword(s):  
Hepatitis B Virus ◽  
Pleural Effusion ◽  
Hepatitis B ◽  
Antiviral Treatment ◽  
Public Health Problem ◽  
Hbv Infection ◽  
Viral Reactivation ◽  
Major Public Health Problem ◽  
Chronic Hepatitis B Virus ◽  
B Virus

Despite worldwide vaccination campaigns, hepatitis B virus (HBV) infection remains a major public health problem. The natural history ranges from asymptomatic infection to severe liver injury or failure, chronic complications or reactivation episodes. The effects of HBV on the organism are immunomediated, possibly triggering extrahepatic manifestations. Since 1971, only a few cases of pleural effusion related to HBV infection have been described. We report HBV-associated pleural effusion occurring during a viral reactivation episode. Antiviral treatment directed towards pleural effusion related to HBV infection should be dictated by underlying liver disease severity and not pleural effusion severity.

scholarly journals Lymphocyte Transformation of Hepatitis B Virus Infected Pregnant Women, Attending Specialist Hospital Sokoto

2020 ◽  
pp. 97-107
Author(s):  
C. O. Onwuliri ◽  
C. C. Onyenekwe ◽  
M. H. Yeldu ◽  
A. A. Panti ◽  
A. B. Shuaibu ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Pregnant Women ◽  
Concanavalin A ◽  
Lymphocyte Transformation ◽  
Public Health Problem ◽  
Sub Saharan Africa ◽  
High Morbidity ◽  
Major Public Health Problem ◽  
B Virus

Hepatitis B virus (HBV) is a major public health problem in sub-Saharan Africa with high morbidity and mortality. Vertical transmission is a significant contributor of new cases. The aim of this study was to determine the prevalence of HBV infection, to assess the immune competence of Hepatitis B (HB) viral infected pregnant women using lymphocyte transformation. It was a cross sectional comparative observational study. Simple random sampling technique was applied. One hundred HB infected pregnant women and one hundred controls were recruited. Data were analysed using SPSS (version 23) software. A P-value ≤ 0.05 was considered statistically significant. The results recorded showed a prevalence of 6.6%. The percentage lymphocyte transformation was significantly lower (p < 0.05) for HBV infected subjects compared with control. The rate of lymphocyte transformation with Phytohaemagglutinin was significantly lower (p < 0.05) when compared with Concanavalin A. Conclusively HB infection affects the adaptive immune response. Pregnant women should be screened for Hepatitis B surface Antigen (HBsAg) during routine Antenatal clinic and Concanavalin A based drugs should be recommended for HB infected pregnant women.

scholarly journals Hepatitis B Virus_Surface Gene Mutations and Their Clinical Implications

2017 ◽  
Vol 12 (2) ◽  
pp. 101
Author(s):  
Yassir M. Hamadalnil ◽  
Sahar Bakheit
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Gene Mutations ◽  
Public Health Problem ◽  
Scientific Data ◽  
Hepatitis B Vaccination ◽  
Clinical Implications ◽  
Major Public Health Problem ◽  
B Virus ◽  
Surface Gene

<p>Hepatitis B infection is a major public health problem caused by hepatitis B virus (HBV). Factors associated with host immunity such as (HBV specific T- and/or B-cell) production and antigen presentation failure and viral determinants such as the HBV genotypes and their evolving variants, have largely contributed to and justified variations that occur in the HBV surface gene. Hepatitis B surface gene mutations may influence the accuracy of the results obtained with currently used serological diagnostic tests and may represent a great risk for the community, since neither hepatitis B vaccines nor hepatitis B immunoglobulin will prevent the infection by HBV. Out of 96 published papers from (1988 till 2016) downloaded from Google scholar and PubMed and evaluated according to the relevance of scientific data for the surface gene mutations of hepatitis B virus then52 papers of them were selected and included in this study, then we reviewed and evaluated the current published papers about the surface gene mutations worldwide in which G145R represents the most common hepatitis B surface gene mutation reported in the literature. Furthermore, we reviewed their clinical implications and their impact on hepatitis B vaccination and treatment. </p>

Performance of HBsAg quantification assays for detection of Hepatitis B virus genotypes and diagnostic escape-variants in clinical samples

2017 ◽  
Vol 89 ◽  
pp. 14-21 ◽  
Author(s):  
Vincent Thibault ◽  
Annabelle Servant-Delmas ◽  
Thoai Duong Ly ◽  
Anne-Marie Roque-Afonso ◽  
Syria Laperche
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Clinical Samples ◽  
B Virus ◽  
Virus Genotypes

scholarly journals Knowledge and vaccination status on hepatitis B among the students of Patuakhali Science and Technology University, Bangladesh

2018 ◽  
Vol 5 (11) ◽  
pp. 4715
Author(s):  
M. Sabbir Ahmed ◽  
M. Wahidur Rahman ◽  
Fahmida Fayeza ◽  
Tarana Sharmin
Keyword(s):  
Hepatitis B Virus ◽  
Blood Transfusion ◽  
Hepatitis B ◽  
Public Health Problem ◽  
Causative Factor ◽  
Vaccination Status ◽  
Global Public Health ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
B Virus

Background: Hepatitis B virus (HBV) infection is a serious global public health problem as well as in Bangladesh. The most common liver disease in Bangladesh is viral hepatitis. Bangladesh is an intermediate endemic zone for hepatitis B virus infection. Research shows that about 10 million people in Bangladesh have been suffering from hepatitis B.Methods: The research was a cross-sectional survey and appropriate statistical formula was used to select 341 respondents randomly. The data were collected through a pre-designed, pre-structured questionnaire, which was distributed among the students. All the data was analysed using Microsoft Excel 2013.Results: Most of the respondent 95% knew about hepatitis B and about 87% knew that it is a viral infection. About 69% students respond that hepatitis B can increase liver cancer. Among the respondents, 76% supported that hepatitis B can be transmitted by blood transfusion. Most of the students 82% supported blood transfusion as a causative factor and 67% informed that jaundice is the major sign and symptoms of hepatitis B. More than half of the students 53% reported that they were vaccinated for hepatitis B. The major reasons for not taking vaccination were lack of free time and lack of feeling of necessity for vaccination.Conclusions: The overall knowledge and vaccination status on hepatitis B virus was not satisfactory. Different types of seminars and campaigns on hepatitis B, arranged by university will help to increase the student’s level of knowledge on hepatitis B.

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.

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