Hepatitis B Virus Infection among Health Care Workers in Indonesia

Factors predicting the level of vaccine protection against hepatitis B virus infection among physicians and nurses in Šabac, Serbia

As healthcare workers run a high and constant occupational risk of hepatitis B virus (HBV) infection through exposure to biological material, vaccination is mandatory as well as the monitoring of antibody levels one to two months after complete immunisation. The aim of this descriptive cross-sectional study was to determine HBV vaccine coverage of 200 primary and secondary healthcare workers (100 each) from Šabac, Serbia and their blood anti-HBs titre. We also wanted to identify factors that could predict the titre. Anti-HBV vaccination covered all participants, of whom 89.5 % were fully vaccinated, and 85 % had a protective antibody titre. We found a statistically significant association between antibody titre and the number of received vaccine doses, chronic jaundice, autoimmune disease, and cancer in our participants. The fact that 15 % did not achieve the protective antibody titre confirms the necessity of its control after immunisation, which is not routinely carried out in most countries, Serbia included. It is, therefore, necessary to develop a detailed strategy for monitoring vaccination and serological status of healthcare workers in order to improve their safety at work. An important role should also be given to continuous education of healthcare workers from the beginning of schooling to the end of their professional career.

Knowledge, attitudes, practices and prevalence of hepatitis B and C and hepatitis B vaccination coverage among public sector healthcare workers in Cambodia

Healthcare workers (HCWs) are a key population at high risk for hepatitis B (HBV) and hepatitis C (HCV) infections. We aim to study HBV vaccination coverage, seroprevalence, knowledge, attitudes, and practices towards HBV and HCV infections among HCWs in public sector in Cambodia. A nationally representative cross-sectional study was implemented in 2019, among Cambodian HCWs. A standardized questionnaire was administered to randomly selected HCWs whose blood was then sampled. We used univariate and multivariate regression to determine predictors of outcomes. Among 755 participants, we found 4.9% positive HBsAg and 2.3% positive anti-HCV Ab. HBV vaccination coverage was 59.3%. Lack of knowledge was found on the route of transmission, HBV vaccination, diagnosis and treatment of HBV and HCV. 67% of HCWs thought that all patients should be screened for HBV and HCV and about 30% of them would refuse to take care of infected patients. 58% of HCWs always recapped the needle after use. In univariate analysis, older age-group (> 50 years) is more likely to have positive anti-HCV (OR: 9.48; 95% CI: 2.36-38.18). HCWs who were younger, female or having higher education or having ever been tested, were more likely to have gotten HBV vaccinated. Multivariate analysis reconfirmed these predictors of getting vaccinated. Study findings indicated an urgent need of a national policy for Cambodian HCWs given the high prevalence of hepatitis among this group. Policy should include an effective in-service training program to improve knowledge and practices, a testing and vaccination program for HCWs and it should emphasize stigma intervention towards people living with HBV/HCV.

Prevalence of hepatitis B virus infection among general population of Armenia in 2021 and factors associated with it: a cross-sectional study

OBJECTIVES

This study sought to determine the prevalence and associated factors of hepatitis B virus (HBV) infection ever in life and chronic HBV infection in Armenia.

DESIGN

A population-based cross-sectional seroprevalence study combined with a phone survey of tested individuals.

SETTING

All administrative units of Armenia including 10 provinces and capital city Yerevan.

PARTICIPANTS

The study frame was the general adult population of Armenia aged ≥18 years.

PRIMARY AND SECONDARY OUTCOME MEASURES

The participants were tested for anti-HBV core antibodies (anti-HBc) and HBV surface antigen (HBsAg) using third-generation enzyme immunoassays. In case of HBsAg positivity, HBV DNA and hepatitis D virus (HDV) RNA PCR tests were performed. Risk factors of HBV infection ever in life (anti-HBc positivity) and chronic HBV infection (HBsAg positivity) were identified through fitting logistic regression models.

RESULTS

The seroprevalence study included 3838 individuals 18 years and older. Of them, 90.7% (3476 individuals) responded to the phone survey. The prevalence of anti-HBc positivity was 14.1% (95% CI 13.1% to 15.2%) and HBsAg positivity 0.8% (95% CI 0.5% to 1.1%). The viral load was over 10 000 IU/mL for 7.9% of HBsAg-positive individuals. None of the participants was positive for HDV. Risk factors for HBsAg positivity included less than secondary education (aOR=6.44; 95% CI 2.2 to 19.1), current smoking (aOR=2.56; 95% CI 1.2 to 5.6), and chronic liver disease (aOR=8.44; 95% CI 3.0 to 23.7). In addition to these, risk factors for anti-HBc positivity included age (aOR=1.04; 95% CI 1.04 to 1.05), imprisonment ever in life (aOR=2.53; 95% CI 1.41 to 4.56), and poor knowledge on infectious diseases (aOR=1.32; 95% CI 1.05 to 1.67), while living in Yerevan (vs provinces) was protective (aOR=0.74; 95% CI 0.59 to 0.93).

CONCLUSION

This study provided robust estimates of HBV markers among general population of Armenia. Its findings delineated the need to revise HBV testing and treatment strategies considering higher risk population groups, and improve population knowledge on HBV prevention.

Awareness of hepatitis B post-exposure prophylaxis among healthcare providers in Wakiso district, Central Uganda

Background

Healthcare providers (HCPs) are at an elevated occupational health risk of hepatitis B virus infections. Post-exposure prophylaxis (PEP) is one of the measures recommended to avert this risk. However, there is limited evidence of HCPs’ awareness of hepatitis B PEP. Therefore, this study aimed to establish awareness of hepatitis B PEP among HCPs in Wakiso, a peri-urban district that surrounds Uganda’s capital, Kampala.

Methods

A total of 306 HCPs, selected from 55 healthcare facilities (HCFs) were interviewed using a validated structured questionnaire. The data were collected and entered using the Kobo Collect mobile application. Multivariable binary logistic regression was used to establish the factors associated with awareness of hepatitis B PEP.

Results

Of the 306 HCPs, 93 (30.4%) had ever heard about hepatitis B PEP and 16 (5.2%) had ever attended training where they were taught about hepatitis B PEP. Only 10.8% were aware of any hepatitis B PEP options, with 19 (6.2%) and 14 (4.6%) mentioning hepatitis B immunoglobulin (HBIG) and hepatitis B vaccine, respectively as PEP options. Individuals working in the maternity department were less likely to be aware of hepatitis B PEP (AOR = 0.10, 95% CI = 0.02–0.53). There was a positive association between working in a healthcare facility in an urban setting and awareness of hepatitis B PEP (AOR = 5.48, 95% CI = 1.42–21.20). Hepatitis B screening and vaccination were not associated with awareness of PEP.

Conclusions

Only one-tenth of the HCPs were aware of any hepatitis B PEP option. Awareness of hepatitis B PEP is associated with the main department of work and working in a healthcare facility in an urban setting. This study suggests a need to sensitise HCPs, especially those in rural HCFs and maternity wards on hepatitis B PEP. The use of innovative strategies such as e-communication channels, including mobile text messaging might be paramount in bridging the awareness gap.

Describing nurses' awareness of biological risk in delivering care for renal-dialysis patients: an Italian pilot survey

BACKGROUND AND AIM OF WORK

Despite national descriptions of awareness, knowledge, and perceptions about the exposure to the biological risk among nurses employed in renal-dialysis care are pivotal to increase work safety, there is a paucity of data on these descriptions in the Italian context. This study aimed at describing Italian nurses' awareness and knowledge about biological risk in delivering care for renal-dialysis patients, and their experiences of biological accidents.

METHODS

A pilot survey using cross-sectional data collection and convenience sampling procedure. 124 nurses were enrolled receiving a 7-item questionnaire: Questions 1, 2, and 7 were referred to the awareness about educational learning needs, questions 3 and 4 explored nurses' knowledge about biological risk, questions 5 and 6 collected accident-related information.

RESULTS

Overall, nurses' awareness and knowledge about biological risk appeared almost limited. Surprisingly, 52% of the enrolled nurses experienced a biological accident, and 29.5% reported to know colleagues who developed work-related disease after a biological accident. We found positive significant associations between awareness and knowledge.

CONCLUSIONS

This pilot study highlighted the need to further describe Italian nurses' awareness and knowledge about biological risk in delivering care for renal-dialysis patients, as well as the need of up-to-date epidemiological description about biological accidents. Accordingly, future studies are highly recommended to provide robust evidence aimed at supporting policy makers, educators, clinicians, regulators, and managers.

Prevalence and risk factors of hepatitis B virus infection among medical laboratory science students in a Ghanaian tertiary institution

Purpose

This study aimed to determine the prevalence and risk factors of hepatitis B virus (HBV) infection among medical laboratory science students (MLSSs) in the University of Health and Allied Sciences (UHAS), Ghana.

Design/methodology/approach

A cross-sectional study design was employed to recruit a total of 178 students into the study. A self-administered questionnaire was used to gather relevant information on risk factors, and a hepatitis B diagnostic test kit was used to test for HBV infection. Descriptive, chi-square test, bivariate and multiple logistic regression statistical analysis were computed. Significance was observed at p < 0.05.

Findings

The prevalence of HBV infection among MLSSs was 6.7%. Torn gloves and splash of blood and body fluids contributed to 43.0% and 28.0% of all the risk factors of HBV infection, respectively. Also, 43.3% of students had received at least one dose of the hepatitis B vaccination. Sharp object-related injury and torn gloves increased the odds of HBV infection, while vaccination decreased the odds of HBV infection.

Originality/value

This study reveals the prevalence of HBV among MLSSs, who are recognized as being among the high-risk student populations aside from student nurses.

Hepatitis B screening and vaccination status of healthcare providers in Wakiso district, Uganda

BACKGROUND

Screening and vaccination against Hepatitis B virus (HBV) infection remains the most effective intervention in curbing the disease. However, there is limited evidence on the factors associated with the uptake of these services in Uganda. This study determined the uptake of HBV screening and vaccination status, and associated factors among Healthcare Providers (HCPs) in Wakiso district, Uganda.

MATERIALS AND METHODS

This cross-sectional study was conducted among 306 HCPs, randomly selected from 55 healthcare facilities. Prevalence ratios (PR) were used to determine the factors associated with HBV screening and vaccination status of HCPs.

RESULTS

Of the 306 HCPs, 230 (75.2%) had ever screened for HBV infection while 177 (57.8%) were fully vaccinated. Being male was positively associated with 'ever been screened' for HBV infection (Adjusted PR = 1.27, 95%CI 1.13-1.41). Working in a public healthcare facility (Adjusted PR = 0.78, 95%CI 0.68-0.90) was negatively associated with ever been screened. Male sex (Adjusted PR = 1.21, 95%CI 1.01-1.46), the belief that the HBV vaccine was safe (Adjusted PR = 1.72, 95%CI 1.03-2.89) and ever been screened (Adjusted PR = 2.28, 95%CI 1.56-3.34) were positively associated with being fully vaccinated. However, working in a public healthcare facility (Adjusted PR = 0.79, 95%CI 0.64-0.98), self-perceived risk of HBV infection (Adjusted PR = 0.72, 95% CI:0.62-0.84), and working in a healthcare facility with infection control guidelines (Adjusted PR = 0.79, 95%CI 0.66-0.95) were negatively associated with being fully vaccinated.

CONCLUSION

Three quarters of HCPs had ever been screened for HBV while slightly more than half were fully vaccinated. HBV screening and vaccination interventions need to consider the HCP sex, risk perception, attitude towards safety and efficacy of the hepatitis B vaccine, and healthcare facility characteristics such as ownership and availability of infection control guidelines, in order to be successful.

High level of vaccination and protection against hepatitis B with low rate of HCV infection markers among hospital health care personnel in north of Iran: a cross-sectional study

BACKGROUND

hepatitis B virus (HBV) and C virus (HCV) are among the leading causes of mortality worldwide. Health care personnel (HCP) are subjected to increased risk of these infections. Therefore, HBV vaccination and post-vaccination serologic testing (PVST) are recommended for them. Our objectives in this study were investigate how well the vaccination guidelines for hospital HCPs were implemented. Moreover, the prevalence rates of HBV and HCV infections were calculated. To determine the presence of immunological memory, vaccinated personnel negative to antibody against HB surface antigen with one dose of HB vaccine were boosted.

METHODS

From 1 July to 30 November 2017, a cross-sectional study among HCPs working in public hospitals were conducted. All HCPs from various professional categories potentially at risk of exposure to contaminated sources were included. The information was gathered via interview and self-administered questionnaire. The questions were focused on the demographic characteristics, HB vaccination and immunity status and time elapsed since initial vaccination series, and frequency of needelstick injuries during the past 12 months of their work. Moreover, the prevalence rate of HBV and HCV infections were calculated. To determine the presence of immunological memory, subjects negative to HBV seromarkers received a booster dose of the vaccine.

RESULTS

A total of 186 out of 766 participants were male and nurses comprised 71% of personnel. Although all HCP were vaccinated, 84% of them completed the course and less than 5% of them received PVST. According to the results, 0.78, 4.6, and 83% were serologically positive to HBV surface antigen, antibodies against HBV core, and S antigens, respectively. Approximately, 91% of seronegative participants responded to a booster dose and only 0.91% of the personnel was anti-HCV positive.

CONCLUSION

Most HCP received full HBV vaccination course. Although a minority did PVST, the HBV vaccine-induced long-term protection and HB vaccine booster were not required. Therefore, policies should be made to increase the rate PVST after immunization. According to the results, the HCV infection rate was low and thus pre-recruitment screening was not necessary.

Asian consensus recommendations on optimizing the diagnosis and initiation of treatment of hepatitis B virus infection in resource-limited settings

Asia has an intermediate-to-high prevalence of and high morbidity and mortality from hepatitis B virus (HBV) infection. Optimization of diagnosis and initiation of treatment is one of the crucial strategies for lowering disease burden in this region. Therefore, a panel of 24 experts from 10 Asian countries convened, and reviewed the literature, to develop consensus guidance on diagnosis and initiation of treatment of HBV infection in resource-limited Asian settings. The panel proposed 11 recommendations related to diagnosis, pre-treatment assessment, and indications of therapy of HBV infection, and management of HBV-infected patients with co-infections. In resource-limited Asian settings, testing for hepatitis B surface antigen may be considered as the primary test for diagnosis of HBV infection. Pre-treatment assessments should include tests for complete blood count, liver and renal function, hepatitis B e-antigen (HBeAg), anti-HBe, HBV DNA, co-infection markers and assessment of severity of liver disease. Noninvasive tests such as AST-to-platelet ratio index, fibrosis score 4 or transient elastography may be used as alternatives to liver biopsy for assessing disease severity. Considering the high burden of HBV infection in Asia, the panel adopted an aggressive approach, and recommended initiation of antiviral therapy in all HBV-infected, compensated or decompensated cirrhotic individuals with detectable HBV DNA levels, regardless of HBeAg status or alanine transaminase levels. The panel also developed a simple algorithm for guiding the initiation of treatment in noncirrhotic, HBV-infected individuals. The recommendations proposed herein, may help guide clinicians, to optimize the diagnosis and improvise the treatment rates for HBV infection in Asia.

An expert review on the use of tenofovir alafenamide for the treatment of chronic hepatitis B virus infection in Asia

Asia has intermediate-to-high prevalence and high morbidity of hepatitis B virus (HBV) infection. The use of guideline-recommended nucleos(t)ide analogs with high barrier to resistance, such as entecavir (ETV), tenofovir disoproxil fumarate (TDF), and tenofovir alafenamide (TAF), is one of the key interventions for curbing HBV infection and associated morbidity in Asia. However, there are some challenges to the use of ETV and TDF; while ETV is associated with high resistance in lamivudine (LAM)-exposed (especially LAM-refractory) patients; bone and renal safety issues are a major concern with TDF. Hence, a panel of twenty-eight expert hepatologists from Asia convened, reviewed the literature, and developed the current expert opinion-based review article for the use of TAF in the resource-constrained settings in Asia. This article provides a comprehensive review of two large, phase 3, double-blind, randomized controlled trials of TAF versus TDF in HBeAg-negative (study 0108) and HBeAg-positive (study 0110) chronic HBV patients (> 70% Asians). These studies revealed as follows: (1) non-inferiority for the proportion of patients who had HBV DNA < 29 IU/mL; (2) significantly high rate of normalization of alanine aminotransferase levels; (3) no incidence of resistance; and (4) significantly better bone and renal safety, with TAF vs. TDF up to 144 weeks. Considering the benefits of TAF, the expert panel proposed recommendations for optimizing the use of TAF in Asia, along with guidance on specific patient groups at risk of renal or bone disease suitable for TAF therapy. The guidance provided in this article may help clinicians optimize the use of TAF in Asia.