Knowledge and awareness of hepatitis B amongst students of Pamo University of Medical Sciences (PUMS), Port Harcourt, Rivers State, Nigeria

Background: Globally, 296 million people were infected by hepatitis B in 2019, with 1.1 million deaths. Africa is one of the endemic regions. Good knowledge and awareness of hepatitis B remain pivotal to the biosafety of medical students. This study sought to determine the levels of knowledge and awareness of hepatitis B among students of Pamo University of Medical Sciences (PUMS), Port Harcourt, Nigeria, and the predicting factors associated with this knowledge and awareness. The is with the aim of providing recommendations for improving and sustaining biosafety levels for medical and other health-related students of the University. Methodology: The study was a descriptive cross-sectional design conducted amongst 528 randomly selected medical students of PUMS, Port Harcourt, Nigeria. Structured questionnaires were interviewer-administered to collect socio-demographic information and participants' responses to questions on knowledge and awareness of hepatitis B. Data were analysed using SPSS version 26.0 and relationships of socio-demographic characteristics and predictive factors with knowledge and awareness of hepatitis B were tested using binary logistic regression analysis with p value for statistical significance set at <0.05. Results: A total of 528 students participated in the study, 202 (38.3%) males and 326 (61.7%) females. Most participants (296, 56.1%) were between 15-19 years of age with mean age of 19 ±2.43 years. The mean (±SD) of participants responses with good knowledge of hepatitis B was 249±121.5 while for good awareness, it was 181±88.3. The percentage average for good knowledge and good awareness was 47.2% and 34.2% respectively, with positive correlation between knowledge and awareness of hepatitis B (r=0.720, p<0.0001). Age was significantly associated with participants percentage average knowledge (OR=0.77, 95% CI 0.70-0.84, p<0.0001) and awareness of hepatitis B (OR=0.84, 95%CI 0.78-0.90, p=0.004). No other factor was significantly associated with knowledge and awareness of hepatitis B except Ijaw tribe (OR=0.4, 95%CI 0.24-0.66, p=0.034) and attendance of Federal Government College (OR=0.4, 95% CI 0.24-0.68, p=0.046). Conclusion: The percentage average good knowledge of 47.2% and awareness of 34.2% for hepatitis B in this study are low, although most participants in the study were between the ages of 15-19 years and in their first and second year of study. This gives room for improvement in knowledge and awareness of hepatitis B with progression in age and year of training. Good knowledge and awareness of hepatitis B are central to the biosafety of medical students. It is recommended that the National Universities Commission (NUC) and the Medical and Dental Council of Nigeria (MDCN) review the current medical school curriculum to increase the teaching of medical and health-related students that will impact more on knowledge and awareness of infectious diseases and infection prevention and control.

Effect of Hepatitis B Vaccination on HBV-infection among school children in Yaounde ten years after its introduction of the HBV vaccine into routine Immunization Program in Cameroon

Introduction: since the introduction of the anti-HBV vaccine into the Expanded Program on Immunization (EPI) in 2005 in Cameroon, vaccination coverage has reached 99.0%. This coverage would indicate an increase the number of children immune to Hepatitis B Virus (HBV) and a decrease in susceptibility to HBV-infection. This study was conducted to evaluate the effect of the HBV vaccine on pediatric HBV-infection in Yaounde, Cameroon. Methods: this school based cross-sectional study was conducted from February to May 2016 among 180 children from Nkomo public school. The study population was stratified into two groups: vaccinated (n=95) versus (vs) unvaccinated (n=85). Screening for HBV biomarkers was done using a rapid panel test for detection (HBsAg, HBeAg and anti-HBc) and anti-HBs titer using enzyme linked immunosorbent assay (ELISA). Statistical analyses were done using SPSS v. 22 with p ≥0.05 considered significant. Results: the mean age was 9.65 years. HBsAg (p=0.019) and anti-HBc (p=0.001) rates were detected in children aged ≥10 years and children aged < 10 years (95.95% [71/74]) were vaccinated vs 22.64% (24/106) for those aged ≥10 years (OR: 80.86; 95% CI: 23.36%-279.87%, p < 0.0001). According to anti-HBV vaccination status, HBsAg rate varied from [9.41% (8/85) to 1.05% (1/95), p=0.025], HBeAg rate varied from [2.35% (2/85) to 0% (0/95), p= 0.42] and anti-HBc rate ranged from [12.94% (11/85) to 2.10% (2/95), p= 0.011]. Conclusion: despite the variability of the anti-HBs titer, vaccination against HBV has a positive effect on the reduction of HBV infection in children in tropical settings such as Cameroon.

Protection level of anti­hepatitis B vaccine and immunoglobulin in a pediatric Cameroonian population

Despite the availability for nearly twenty years of an effective vaccine, hepatitis B remains one of the most frequent viral diseases throughout the world. Mother to child transmission is one of the primary routes of transmission in children. To assess the vaccine response in children born to HBV infected mothers. HBsAg positive consenting mothers registered in the antenatal care (ANC) service database of Centre Hospitalier Dominicain St Martin de Porres, Yaounde were enrolled with their children. Socio demographic char acteristics were collected using a tested questionnaire. The 5 markers of hepatitis B were tested and the quantification of anti HBsAg antibodies was done by indirect ELISA method. The data collected was analyzed using Microsoft excel and Epi info softwares. Out of 5,996 women registered, 143 were identified as HBsAg positive (2.38% prevalence) and none was HBeAg positive. Of these 143 HBsAg positive women, 50 were enrolled in the study. Of the 50 positive mothers, 78 children were included with a mean age ± standard deviation of 2.33±2.86 years. No child was infected with HBV, but all have been exposed to the virus (HBeAb positive). Overall 64 (82.05%) received at birth both anti HBs immunoglobulin (HBIG) and a dose of vaccine, while 14 (17.95%) received only the birth dose of vaccine. 72 (92.31%) children received all three recommended doses of vaccine. Vaccine responders were 62.82% (above 10 IU/ml), while 37.18% of children were non responders; representing a higher risk group if not boosted. The coverage of the anti HBV vaccine in children in this study was 92.31%. The protection level of 62.82% is below the 95% recommended rate by WHO. The factors sustaining this suboptimal protection should be investigated

Prévalence de l'infection par l'hépatite virale B et facteurs associés chez les enfants des sujets ivoiriens porteurs de l'AGHBS / Prevalence of hepatitis B infection and factors associated in children of Ivorian HBsAg carrier

Objectifs : Déterminer la prévalence de l'infection par le virus de l'hépatite B (VHB) chez les enfants (sujets contact) des sujets porteurs chroniques de l'Ag HBs (sujets index) et rechercher les facteurs associés à cette infection chez ces enfants.Patients et méthodes: il s'est agi d'étude rétrospective transversale portant sur les patients positifs pour l'Ag HBs (sujets index), dont la famille (sujets contact: conjoints et enfants) a été soumise à un dépistage systématique de l'infection par le VHB. Résultats: L'âge médian de nos 44 sujets était de 43,1 ± 7,49 ans. Le nombre moyen d'enfants par sujet index était de 2,3 ± 1,1. L'âge médian des 92 enfants était de 9,3 ± 4,55 (de 1 à 15 ans) et 43 (44,8%) étaient vaccinés contre le VHB. La fréquence de l'infection par le VHB était de 24%. Les facteurs indépendants associés à l'infection par le VHB chez les enfants étaient l'ADN du VHB pour les sujets index> 2000 UI/ml (OR = 11,5; p = 0,001), l'existence du VHB chez les deux parents (OR = 7,9; p = 0,03) et l'absence de vaccination contre le VHB chez les enfants (OR = 30,9; p = 0,003). Conclusion: La couverture vaccinale des enfants des sujets index était insuffisante. Outre la transmission verticale, le risque de transmission intrafamiliale était élevé en présence d'au moins un des trois facteurs associés

Objectives: To determine the prevalence of hepatitis B virus (HBV) infection in children (contact subjects) of chronic HBsAg (index subjects) and to investigate the factors associated with this infection in these children. Patients and methods: this was a retrospective cross-sectional study of HBsAg positive patients (index subjects), whose families (contact subjects: spouses and children) were routinely screened for HBV infection. Results: The median age of our 44 subjects was 43.1 ± 7.49 years. The average number of children per index subject was 2.3 ± 1.1. The median age of the 92 children was 9.3± 4.55 (1 to 15 years) and 43 (44.8%) were vaccinated against HBV. The prevalence of HBV infection was 24%. The independent factors associated with HBV infection in children were HBV DNA for index subjects> 2000 IU/ml (OR = 11.5; p = 0.001), the existence of HBV in both parents (OR = 7.9; p = 0.03) and no HBV vaccination in children (OR = 30.9; p = 0.003). Conclusion: Immunization coverage of children of index subjects was insufficient. In addition to vertical transmission, the risk of intrafamilial transmission was high in the presence of at least one of the three associated factors.

Epidemiology of hepatitis B virus infection among pregnant women in Lubumbashi, Democratic Republic of Congo: prevalence, risk factors, and genotype distribution

Background Mother-to-child transmission (MTCT) of hepatitis B virus (HBV) is a significant public health problem. Most children under five years living with HBV in endemic areas like sub-Slivingan Africa. Vertical transmission is considered the main newborn's route of contamination, which leads in 90% of cases to the chronic stage of the disease. Objectives To determine the seroprevalence and identify risk factors of carrying hepatitis B surface Antigen (HBsAg) in pregnant women, assess biochemical parameters, and study the distribution of HBV genotypes among infected pregnant women in Lubumbashi. Methods This was a cross-sectional descriptive and experimental study in which 1711 pregnant women were recruited. The study took place in the hospital Jason Sendwe of Lubumbashi. A pre-established epidemiological survey form was used to collect data from the study population. Results The seroprevalence of HBV among pregnant women was 4.4%. Blood transfusion and unprotected sex have been associated with the risk of carrying HBsAg. Increased levels of bilirubin and transaminases were observed. The genotypes E (59.4%), A (40.6%), and a few drug resistance mutations were identified in the study population. Conclusion With an HBV seroprevalence of 4.4%, MTCT of HBV remains a public health concern in Lubumbashi. This result highlights the vital role of HBV screening in pregnant women and newborns and early HBV vaccination. In addition, the obtained HBV genotyping data could help better understand the local epidemiology of the disease, predict the outcome of the Antiviral therapy, and develop a mapping of HBV genotypes in Lubumbashi.

Aspects socio-économiques de la prise en charge des hépatites virales chroniques en Côte-d'Ivoire / Socio-economic aspects of the management of chronic viral hepatitis in Côte-d'Ivoire

Contexte et objectifs. Les hépatites virales chroniques constituent un problème de santé publique en Côte-d'Ivoire. Très peu de malades accèdent au traitement en raison des coûts élevés du bilan et du traitement. L'objectif de la présente étude était d'évaluer les coûts du bilan et du traitement des hépatites virales chroniques. Méthodes. Il s'agissait d'une étude observationnelle transversale analytique réalisée, du 1er mars 2019 au 31 juillet 2019, en consultation d'hépato-gastroentérologie du CHU de Yopougon. Les variables étudiées étaient les paramètres sociodémographiques et économiques. Résultats. Au total, 136 patients (hommes 53, 6 %, âge moyen de 42 ans ± 12,2) ont été inclus. Plus de la moitié des patients (63,3 %) avaient un revenu mensuel n'excédant pas 490.39 USD. Le coût du bilan initial était de 223.13 USD et de 351.14 USD respectivement, pour l'hépatite virale B et C. Le ténofovir et l'interféron pégylé étaient gratuits. Le traitement par sofosbuvir + velpastavir coûtait 593.37 USD. Le bilan de suivi annuel était estimé à 237.02 USD pour l'hépatite virale B, 225.58 USD pour l'hépatite virale C. Conclusion. Le bilan et le traitement des hépatites virales chroniques ont un coût prohibitif pour les patients malgré la couverture maladie universelle.

Context and objectives. Chronic viral hepatitis is a public health problem in Côte-d'Ivoire. A significant number of patients have little access to treatment due to the high costs of assessment and treatment. The objective of our study was to evaluate the costs of assessments and treatment of chronic viral hepatitis. Methods. This was an analytical cross-sectional observational study from March 1, 2019 to July 31, 2019 in the HepatoGastroenterology Consultation Service at the Yopougon University Hospital. The variables studied were socio-demographic and economic parameters. Results. 136 patients (men 53.6 %, average age 42 ± 12.2 years) were included. More than half of the patients (63.3 %) had a monthly income not exceeding 490.39 USD. The cost of the initial assessment was 223.13 USD and 351.14 USD for viral hepatitis B and C, respectively. Tenofovir and pegylated interferon were free of charge. Treatment with sofosbuvir + velpastavir cost 593.37 USD. The annual follow-up assessment was estimated at 237.02 USD for viral hepatitis B and 225.58 USD for viral hepatitis C. Conclusion. The assessment and treatment of chronic viral hepatitis have a cost that remains high for patients despite the universal health coverage.

Prévalence de l'hépatite virale B chronique à Bangui et Bimbo en République Centrafricaine: cas des donneurs bénévoles réguliers non éligibles pour les dons de sang / Prevalence of chronic viral hepatitis B in Bangui and Bimbo in the Central African Republic: cases of regular voluntary donors not eligible for blood donations

Contexte & objectif. L'hépatite virale B (HVB) par son évolution peut déboucher vers la guérison ou vers une forme chronique qui est très peu documentée chez les donneurs bénévoles de sang (DBS). L'objectif de la présente étude était de déterminer la prévalence de l'HVB chronique. Méthodes. L'étude réalisée au Centre National de Transfusion Sanguine de Bangui était rétrospective et portait sur les données de contrôle sérologique des DBS de Bimbo et de Bangui, capitale de la République centrafricaine (RCA). L'échantillonnage exhaustif concerne la période de juillet 2013 à décembre 2019. Le DBS est porteur d'une infection chronique si l'antigène de surface de l'HVB persiste pendant plus de six mois. Le test de Chi carré de Pearson au seuil de 5 % et l'odd ratio (OR) ont été utilisés comme test d'association. Résultats. Les données de contrôle sérologique de 702 DBS âgés de 18 à 62 ans ont été analysées. Le sexe masculin était prépondérant (n=598). La prévalence de l'HVB chronique était de 70,5 %. Cette prévalence était plus élevée chez les DBS de 25 à 34 ans (30,4 %), les hommes (58,8 %) et les DBS qui résident à Bangui (61,2 %). La forme chronique était significativement associée au jeune âge (18 à 44 ans) et au sexe masculin (p< 0,05). La coïnfection par le VIH et l'hépatite C était retrouvée dans 5,5 % des cas (39/702). Conclusion. La prévalence de l'HVB chronique est très élevée chez les DBS de Bangui et Bimbo. La forme chronique était significativement associée à l'âge et au sexe. La gratuité de la charge virale et du traitement antiviral sont des perspectives à mettre en œuvre

Context and objective. Viral hepatitis B (VHB) by its evolution can lead to recovery or to a chronic form. This chronic form, a source of new contaminations, is not documented among voluntary blood donors (VBD) in Bangui and Bimbo. The present study aimed to determine the prevalence of chronic VHB among VBD in the two cities in the Central African Republic (CAR). Methods. The study carried out at the Bangui National Blood Transfusion Center was retrospective and focused on serological control data from VBD from Bangui, capital of CAR and Bimbo. The exhaustive sampling is from July 2013 to December 2019. A VBD carries a chronic infection if the VHB surface antigen persists for more than six months. Results. Serological control data from 702 VBD aged 18 to 62 years were analyzed. Male sex predominated at inclusion (n = 598). The prevalence of chronic VHB was 70.5 %. This prevalence was higher among young VBD aged 25 to 34 years (30.4 %), the male gender (58.4 %) and VBD residing in Bangui (61.2 %). The chronic form was significantly associated with young age (18 to 44 years) and male sex (p< 5%). Co-infection with HIV and hepatitis C was found in 5.5 % of cases (39/702). Conclusion. The prevalence of chronic VHB is very high in VBD from Bangui and Bimbo. The chronic form was significantly associated with age and sex. Free viral load and antiviral treatment are prospects to be implemented.

Sero-prevalence of Hepatitis B virus surface antigen and associated factors among women of reproductive age in Bench Maji Zone, Southwest Ethiopia: community based cross-sectional study

Background: Hepatitis B virus infection is one of the leading causes of liver diseases which occurs worldwide particularly in developing countries. It is often caused by prenatal transmission from mother to child or household transmission from a close contact during early childhood. It causes different complications like; jaundice, induces premature labor, and prematurity. Objective: The aim of this study was to estimate the sero-prevalence of hepatitis B virus surface antigen and associated factors among women of reproductive age in Bench Maji Zone, South West Ethiopia. Methods: A community-based cross-sectional study was conducted from December 15th, 2016 to February 15th, 2017. Multistage sampling technique was applied to select study participants. Logistic regression analysis was applied and p-values < 0.05 was used to see the significant association between dependent and independent variables. Results: A total of 330 participants were included in this study yielding 98.8% response rate. The sero-prevalence of HBsAg among women of reproductive age was 28(8.5%). Having multiple sexual partners (AOR = 18.73, 95% CI =3.65, 96.21) history of unprotected sex (AOR = 9.39, 95% CI =1.64, 53.77) were found to be significantly associated with sero-prevalence of HBV. Conclusions: The sero-prevalence of HBV infection among women of reproductive age was highly endemic. Hence, behavioral education and communication programs focusing on reduction of risky sexual behaviors should be designed to reduce HBV infection.

Sero-prevalence of Hepatitis B virus surface antigen and associated factors among women of reproductive age in Bench Maji Zone, Southwest Ethiopia: Community based cross-sectional study

Background: Hepatitis B virus infection is one of the leading causes of liver diseases which occurs worldwide particularly in developing countries. It is often caused by prenatal transmission from mother to child or household transmission from a close contact during early childhood. It causes different complications like; jaundice, induces premature labor, and prematurity. Objective: The aim of this study was to estimate the Sero-prevalence of hepatitis B virus surface antigen and associated factors among women of reproductive age in Bench Maji Zone, South West Ethiopia. Methods: A community-based cross-sectional study was conducted from December 15th, 2016, to February 15th, 2017. Multistage sampling technique was applied to select study participants. Logistic regression analysis was applied and p-values < 0.05 was used to see the significant association between dependent and independent variables. Results: A total of 330 participants were included in this study yielding 98.8% response rate. The Sero-prevalence of hbsag among women of reproductive age was 28(8.5%). Having multiple sexual partners (AOR = 18.73, 95% CI = [3.65, 96.21) history of unprotected sex (AOR = 9.39, 95% CI = [1.64, 53.77) were found to be significantly associated with Sero-prevalence of HBV. Conclusions: The Sero-prevalence of HBV infection among women of reproductive age was highly endemic. Hence, behavioral education and communication programs focusing on reduction of risky sexual behaviors should be designed to reduce HBV infection

Perception and practices relating to hepatitis B Infection among in-school adolescents in Ogun State, Nigeria

Objective: This study examined the perception and practices relating to Hepatitis B infection among In-school adolescents in Ogun State, Nigeria.Methods: A cross-sectional study of 300 in-school adolescents selected by a multi-stage sampling method. Data were elicited using a pretested self-administered questionnaire which included questions relating to respondents' risky practices, and a 35-point Hepatitis B perception scale. Descriptive statistics, as well as Chi-square statistics, were generated using IBM SPSS Version 23, and the significance level was set at 0.05.Results: The mean age of the respondents was14.31 ± 1.73years and slightly over half (51.7%) were females. Less than half (45%) of the adolescents perceived themselves to be susceptible to Hepatitis B infection, while 31% perceived Hepatitis B infection to be a serious disease. Almost half (49%) of the adolescents had unfavorable perceptions. The most common risky practices among the respondents were sharing skin-piercing instruments with their family members (79%) and friends (68.7%). There are significant associations between sex (gender) and risky practices such as the practices of unsafe sex (X2= 9.11; p=0.10); having multiple sexual partners (X2= 12.08;p =0.02); and sharing skin-piercing instruments (X2= 5.52;p=0.01) with more males reporting the above practices than females. Conclusion/Recommendation: To minimize the identified risky practices and unfavorable perception, educational intervention programs aimed at promoting Hepatitis B virus preventive behaviors and increasing the level of perception of vulnerability and seriousness of HBV infection among in-school adolescents should be conducted.

Lassa fever coinfection with COVID-19 among health care workers: report of two cases

Lassa fever (LF) coinfection with hepatitis B and HIV has been reported among hospitalized patients in Southwest Nigeria and HIV patients coinfected with COVID-19 have been described among hospitalized patients in North Central Nigeria, no study has reported cases of coinfection of Lassa disease and COVID-19 among health care workers (HCWs) worldwide. A case report of two HCWs who were infected with both LF virus and SARS-CoV-2 virus at same time and were successfully managed without any sequelae. Both cases presented with typical signs of LF with COVID-19 suspected, they were promptly diagnosezd with positive outcomes after treatment. While case 1 became negative for LF virus and SARS-CoV-2 after 6 and 30 days, respectively, case 2 became negative for both viruses after 14 and 32 days, respectively. The diagnosis of LF-COVID-19 coinfection in HCWs is a frightening dimension to the health risks faced by HCWs, therefore, HCWs now more than ever before want to know what comes next and how safe is the practice of medicine

Prise en charge précoce des nouveau-nés exposés à l'hépatite B : expérience du CHU de Cocody, Abidjan, RCI

Introduction : la transmission verticale du virus de l'hépatite B (VHB) peut être prévenue par la vaccination et l'administration précoce d'immunoglobuline spécifiques anti-HBs. En Côte d'Ivoire, seule la vaccination est faite à la sixième semaine de vie dans le cadre du programme élargi de vaccination (PEV). L'objectif de ce travail était d'étudier la réponse vaccinale du nouveau-né après vaccination précoce à la naissance. Patients et méthodes : une étude prospective longitudinale à visée descriptive et analytique conduite du 1er octobre 2016 au 31 octobre 2017 au CHU de Cocody. Toutes les parturientes admises en salle d'accouchement du CHU de Cocody, ont été dépistées au VHB. Les nouveau-nés de mères Ag HBs positif, qui ont reçu quatre doses de vaccin contre le VHB ont été inclus. Résultats : pendant la période d'étude 1668 femmes ont été dépistées au VHB. Celles qui étaient positives au VHB étaient 5,57 %. Les nouveau-nés retenus étaient au nombre de 45. Leurs mères avaient une charge virale moyenne de 8 217 417Ul/ml et elles avaient accouché par voie basse dans 76% des cas. Ces nouveau-nés étaient nés à terme (97,8%) et présentaient à neuf mois de vie un taux moyen d'Ac antiHBs de 437,2 UI/ml. Ils étaient immunisés contre le VHB dans 89% des cas. Il avait été noté 2,2 % d'infection. La charge virale élevée chez la mère était statistiquement liée à la non-réponse vaccinale (p=0,010). Conclusion : la vaccination contre le VHB débutée précocement, prévient l'infection périnatale du VHB et confère une immunité contre le VHB

Determining seroprevalence of Hepatitis B and C virus infections and associated risk factors among apparently healthy mothers in Addis Ababa, Ethiopia

Introduction: Viral hepatitis is a global public health problem affecting millions of people every year, causing disability and death. Hepatitis B (HBV) and hepatitis C (HCV) viruses spread horizontally, mainly through sexual contact and contaminated needles, and vertically. Both cause considerable morbidity and mortality worldwide. Maternal infection is a risk factor for vertical transmission. Objective: To determine the sero-prevalence of HBsAg and anti-HCV antibody among non-pregnant, apparently healthy mothers and to identify potential risk factors associated with HBV or HCV infection. Methods: A community based cross sectional study was conducted on 454 apparently healthy women, in Addis Ababa, Ethiopia from May 2016 to June 2017. A systematic random sampling method was used to recruit participants. Result: A total of 454 mothers were enrolled. Sero-prevalence of HBsAg and HCV was found to be 3.7% and 2.0%, respectively. HBc antibody was detected in 36.3% of the mothers. None of the participants were co-infected with both viruses. Previous history of liver disease, history of jaundice, HIV infection, and family history of liver disease were significantly associated with HBV infection. Marital status, caring for hepatitis patients, and a history of liver disease were factors significantly associated with HCV infection. Conclusion: Apparently healthy mothers in Addis Ababa had intermediate level of endemicity for hepatitis B and C infections Routine screening and vaccination of high risk reproductive mothers against HBV is advisable. Emphasis should be given to health education and promotion of infection control practices. Population based studies are strongly recommended to help monitor disease transmission patterns and to design evidence-based interventions against the spread of hepatitis infections in Ethiopia

Knowledge and practice of pregnant women and health care workers on hepatitis B prevention in the Limbe and Muyuka health districts of the south west region of Cameroon

Introduction: hepatitis B virus (HBV) infection is a major health problem worldwide owing to its high prevalence and significant morbidity and mortality. There are about 2 billion people living with HBV worldwide and over 360 million chronic carriers. The purpose of this study was to assess the knowledge and practices of pregnant women and health care workers in the ANC and maternity units on HBV infection and its transmission.Methods: about 270 women attending ANC and 31 health care workers were selected by convenience sampling. They were evaluated using a structured questionnaire to assess their knowledge and practices on HBV prevention and transmission. Results: pregnant women in the Limbe Health District demonstrated good knowledge but adopted poor practices whereas in the Muyuka Health District, pregnant women demonstrated poor knowledge and adopted poor practices regarding the mode of transmission and prevention of HBV infection. Health care workers in both the Limbe and Muyuka Health Districts however, demonstrated good knowledge and adopted good practices.Conclusion: there was a significant relationship between the knowledge and practice of pregnant women and health care workers on Hepatitis B prevention in the Muyuka Health District (P = 0.0006)

Trends of blood-borne infectious diseases in a rural blood donation center of southeast Gabon (Koula-Moutou)

Introduction: blood-borne pathogens such as human immunodeficiency virus (HIV), hepatitis B and C (HBV and HCV) viruses and Treponema pallidum remain a major public health problem in sub-Saharan Africa. The purpose of this study was to assess the frequency and clinical implications of HIV, HBV, HCV and Treponema pallidum markers in blood donors in a rural area of Southeast Gabon (Koula-Moutou) from 2012 to 2017.Methods: hepatitis B surface antigen (HBsAg), anti-HIV, anti-HCV and anti-Treponema pallidum antibodies were screened using rapid diagnostic tests. Results: of a total of 5,706 blood donors, 1,054 (18.5%) were seropositive for at least one infectious marker and 59 (5.6%) had serologic evidence of multiple infections. The overall seroprevalence of HIV, HBsAg, HCV, and syphilis was 3.1%; 5.9%; 6.2% and 3.3%, respectively. HIV, syphilis and HCV distributions were associated with neither the sex nor the age of the donors. Only HBsAg seroprevalence was significantly higher in donors of the age group 26-35 years old compared to donors of the age group 36-45 years (OR = 1.43 (95% CI: 1.01-2.04), P = 0.045). There was a significant increase in the frequencies of HIV and syphilis and a regression of HBsAg and HCV among blood donors.Conclusion: this study presents the epidemiology of the main pathogens detected in blood donors in a rural area in Gabon. We found that the overall distribution of transfusion transmitted infectious diseases were lower than those observed in the general population but could be underestimated due to the use of rapid diagnostic tests (RDTs) in the screening process of the blood donations

Knowledge and attitude of community health officers towards hepatitis B virus infection in Rivers State, Nigeria

Background: Hepatitis B infection is endemic in Nigeria and healthcare workers are at high risk of the infection. The aim of the study therefore, was to determine the knowledge and attitude of community health officers concerning hepatitis B virus infection. Materials and Methods: Descriptive cross-sectional study conducted among 95 community health officers in Rivers State. The study tool was a self-completed questionnaire. Consenting health officer were administered the questionnaire which evaluated respondents' general knowledge about hepatitis B infection, its prevention and vaccination status. Data analysis was done with SPSS v20.Results: A total of 95 respondents participated in the study, comprising 16 (16.8%) males and 79 (83.2%) females. All the participants were aware of the HBV infection and majority 96.8% knew HBV affects the liver and 78.9% that jaundice is a feature of the infection. Most of the participants 90.5% knew HBV can be transmitted through blood and body fluids. Almost all (98.9%) the respondents knew that HBV is preventable. Most of the respondents (86.3%) associated their job with the risk of the infection and only 13.7% had not received the vaccination.Conclusion: The CHOs demonstrated adequate knowledge about HBV infection but their response to its vaccination was not absolute. The primary healthcare workers as well as other healthcare personnel should be encouraged to receive the complete dose of HBV vaccine to reduce the likelihood of transmission of the infection in healthcare settings

Incidence et risque résiduel de transmission des virus de l'hépatite B et C par transfusion sanguine à Bobo-Dioulasso (Burkina Faso) : Étude de cohorte

l'objectif de notre étude était d'évaluer l'incidence et le risque de transmission des virus des hépatites B et C par transfusion. nous avons conduit une étude de cohorte rétrospective de janvier 2009 à décembre 2014 portant sur les dons de 12 969 donneurs bénévoles et réguliers de sang au Centre Régional de Transfusion Sanguine de Bobo-dioulasso. le diagnostic de l'infection par le VhC ou le VhB était obtenu par technique eliSa devant la présence dans le sérum des anticorps anti-VhC pour le VhC ou de l'antigène hBs pour ce qui est du VhB. le taux d'incidence du VhB était de 2,16 pour 100 donneurs-années et celui du VhC était de 2,59 pour 100 donneurs-années. le risque de transmission du VhB était estimé à 1 pour 302 dons et celui du VhC à 1 pour 213 dons. un renforcement de la sélection des donneurs de sang s'avère indispensable devant un risque élevé de transmission des virus de l'hépatite B et/ou C par don de sang provenant des donneurs bénévoles réguliers

Hepatitis B among Young People in Lere Health Department (Chad)

Background: Hepatitis B is an infectious disease that affects many people worldwide. It may be acute or chronic. Age-specific prevalence varies by geographical region with highest endemicity levels in sub-Saharan Africa and prevalence below 2% in regions such as tropical and central Latin America; North America and Western Europe.Objective: To determine the frequency and characteristics of infected persons with hepatitis B among people from the Lere health department.Participants and method: A 2-month cross-sectional survey was performed in eleven villages in the Lere health department; Chad. At least 100 young people were screened in each village giving a total study population of 1;150 (607 males and 543 females aged = 25 years). Those immunized against hepatitis B were excluded. Studied variables were: age; sex; ethnic group and the results of testing.Results: Hepatitis B tests were positive in 268 cases (23.3%) - 95% of these were from the Moundang ethnic group. Thirty two per cent of boys and 19% of girls aged =15 years were infected; 25% of boys and 13% of girls aged over 15 years were infected.Conclusion: This study shows a high prevalence of hepatitis B in a rural area in Chad. The high proportion among youths aged =15 years indicates that the main way of infection is likely to be the fetal- maternal transmission

Prevalence et facteurs de risque de transmission des hepatites virales B et C chez les couples maries en 2008 dans la Wilaya d'Alger

L'Algerie est classee comme pays de moyenne endemicite avec un taux de prevalence de l'hepatite B qui varie entre 2-8. Notre etude a pour objectif d' identifier la prevalence de l'hepatite B et la prevalence de l'hepatite C ainsi que les facteurs de risque de transmission chez les couples qui ont decide de se marier dans la wilaya d'Alger durant l'annee 2008. Parmi les virus des hepatites; on a choisi de nous interesser uniquement aux hepatites virales B et C; qui ont en commun les memes facteurs de risque de transmission et la propension a entrainer des infections persistantes; responsables d'hepatites chroniques evoluant vers la cirrhose et le cancer primitif du foie. Materiels et methodes : Il s'agit d'une etude descriptive; transversale de type prospectif; qui a porte sur un echantillon de 2984 personnes qui ont l'intention de se marier dans la wilaya d'Alger durant l'annee 2008. Sur la base de deux elements; le nombre de mariages par commune et par mois; un echantillon representatif a ete etabli par allocation proportionnelle. Resultats : Un prelevement avec recherche systematique d'une seropositivite aux hepatites B et C a permis de depister 16 personnes. La proportion des couples presentant une seropositivite aux virus des deux hepatites est de 0.5. La prevalence de l'hepatite B depistee est de 0;2et la prevalence de l'hepatite C de 0;3. Parmi l'ensemble des facteurs de risque recherches; les soins dentaires representent 88.5; le piercing 50.8et la hijama 19.5. Discussion : Notre etude a concerne une population jeune censee etre en bonne sante et chez laquelle on ne devrait pas trouver; a priori; une serologie positive au VHB ou au VHC; ce qui explique les chiffres peu eleves de prevalence de l'hepatite B (0;2) et de l'hepatite C (0;3). Ces donnees ne concernent que la wilaya d'Alger soit le dixieme de la population algerienne et pour un groupe de population bien determinee. Il n'est pas permis d'extrapoler ces resultats au reste de la population. Des etudes similaires doivent etre entreprises dans les autres regions du pays ou semblent dominer des comportements a risque de transmission du VHB et du VHC. Conclusion : L'opportunite instituee par la legislation actuelle devrait etre saisie juste avant la nuptialite. La consultation prenuptiale doit etre institutionnalisee; Le depistage de l'infection par le virus de l'hepatite B et de l'infection par le virus de l'hepatite C ainsi que celui des IST doivent imperativement faire partie du bilan prenuptial. Les textes actuels doivent etre amendes et completes. La vaccination contre l'hepatite B doit etre fortement recommandee avant le mariage