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1.
J Viral Hepat ; 2024 May 26.
Article in English | MEDLINE | ID: mdl-38798022

ABSTRACT

Chronic hepatitis B infection (CHB) affects 300 million people worldwide and is being targeted by the United Nations 2030 Sustainable Development Goals (SDGs) and the World Health Organisation (WHO), working towards elimination of hepatitis B virus (HBV) as a public health threat. In this piece, we explore the evidence and potential impact of peer support to enhance and promote interventions for people living with CHB. Peer support workers (PSWs) are those with lived experience of an infection, condition or situation who work to provide support for others, aiming to improve education, prevention, treatment and other clinical interventions and to reduce the physical, psychological and social impacts of disease. Peer support has been shown to be a valuable tool for improving health outcomes for people living with human immunodeficiency virus (HIV) and hepatitis C virus (HCV), but to date has not been widely available for communities affected by HBV. HBV disproportionately affects vulnerable and marginalised populations, who could benefit from PSWs to help them navigate complicated systems and provide advocacy, tackle stigma, improve education and representation, and optimise access to treatment and continuity of care. The scale up of peer support must provide structured and supportive career pathways for PSWs, account for social and cultural needs of different communities, adapt to differing healthcare systems and provide flexibility in approaches to care. Investment in peer support for people living with CHB could increase diagnosis, improve retention in care, and support design and roll out of interventions that can contribute to global elimination goals.

2.
Sex Transm Infect ; 2024 May 24.
Article in English | MEDLINE | ID: mdl-38789267

ABSTRACT

OBJECTIVES: Chronic hepatitis B infection affects 65 million people in the WHO African Region, but only 4.2% of these are diagnosed and 0.2% on treatment. Here, we present a short report describing establishment of a hepatitis B virus (HBV) programme in Kenya. We share experiences, successes and challenges to support development of future programmes. METHODS: From March 2023, we began the 'STRIKE-HBV' Study to identify people living with HBV (PLWHB) in Kilifi, Kenya. We employed local staff and provided education and training. Individuals were identified through three routes: (1) we offered free-of-charge HBV testing for all non-pregnant adults attending Kilifi Country Hospital (KCH) outpatient department; (2) we invited PLWHB to reattend for review; and (3) we invited close contacts of PLWHB for screening and vaccination if HBV was negative. All those seropositive for HBV were offered a comprehensive liver health assessment. RESULTS: We have established a framework for HBV screening, assessment and linkage to care in Kilifi. Between March 2023 and March 2024, we collected data for 80 PLWHB, comprising (1) screening of 1862 people of whom 30 were seropositive, (2) enrolment of 38 people known to be living with HBV and (3) testing of 97 close contacts of PLWHB, of whom 12 were positive. Among a limited subset with elastography data, we identified 9 of 59 as having significant fibrosis, and a further 6 people had laboratory aspartate transaminase (AST) to platelet ratio index (APRI) scores in keeping with fibrosis. We encountered challenges including procurement delays for hepatitis B surface antigen testing kits and HBV vaccinations, and issues accessing liver elastography. CONCLUSIONS: HBV screening was well received by the Kilifi population, has identified people at risk of liver disease progression and is improving linkage to care and vaccination at KCH. Future HBV programmes in WHO Africa can build on this experience as we work to develop accessible, affordable and acceptable care pathways.

3.
Clin Otolaryngol ; 48(3): 381-394, 2023 05.
Article in English | MEDLINE | ID: mdl-36759416

ABSTRACT

OBJECTIVES: To present a systematic review and critical analysis of clinical studies for necrotising otitis externa (NOE), with the aim of informing best practice for diagnosis and management. DESIGN: Medline, Embase, Cochrane Library and Web of Science were searched from database inception until 30 April 2021 for all clinical articles on NOE. The review was registered on PROSPERO (ID: CRD42020128957) and conducted in accordance with PRISMA guidelines. RESULTS: Seventy articles, including 2274 patients were included in the final synthesis. Seventy-three percent were retrospective case series; the remainder were of low methodological quality. Case definitions varied widely. Median patient age was 69.2 years; 68% were male, 84% had diabetes and 10% had no reported immunosuppressive risk factor. Otalgia was almost universal (96%), with granulation (69%) and oedema (76%) the commonest signs reported. Pseudomonas aeruginosa was isolated in 62%, but a range of bacterial and fungal pathogens were reported and 14% grew no organism. Optimal imaging modality for diagnosis or follow-up was unclear. Median antimicrobial therapy duration was 7.2 weeks, with no definitive evidence for optimal regimens. Twenty-one percent had surgery with widely variable timing, indication, or procedure. One-year disease-specific mortality was 2%; treatment failure and relapse rates were 22% and 7%, respectively. CONCLUSION: There is a lack of robust, high-quality data to support best practice for diagnosis and management for this neglected condition. A minimum set of reporting requirements is proposed for future studies. A consensus case definition is urgently needed to facilitate high-quality research.


Subject(s)
Otitis Externa , Humans , Male , Aged , Female , Otitis Externa/diagnosis , Otitis Externa/therapy , Otitis Externa/microbiology , Retrospective Studies , Risk Factors
4.
Lancet ; 398(10303): 843-855, 2021 09 04.
Article in English | MEDLINE | ID: mdl-34388395

ABSTRACT

BACKGROUND: A previous efficacy trial found benefit from inhaled budesonide for COVID-19 in patients not admitted to hospital, but effectiveness in high-risk individuals is unknown. We aimed to establish whether inhaled budesonide reduces time to recovery and COVID-19-related hospital admissions or deaths among people at high risk of complications in the community. METHODS: PRINCIPLE is a multicentre, open-label, multi-arm, randomised, controlled, adaptive platform trial done remotely from a central trial site and at primary care centres in the UK. Eligible participants were aged 65 years or older or 50 years or older with comorbidities, and unwell for up to 14 days with suspected COVID-19 but not admitted to hospital. Participants were randomly assigned to usual care, usual care plus inhaled budesonide (800 µg twice daily for 14 days), or usual care plus other interventions, and followed up for 28 days. Participants were aware of group assignment. The coprimary endpoints are time to first self-reported recovery and hospital admission or death related to COVID-19, within 28 days, analysed using Bayesian models. The primary analysis population included all eligible SARS-CoV-2-positive participants randomly assigned to budesonide, usual care, and other interventions, from the start of the platform trial until the budesonide group was closed. This trial is registered at the ISRCTN registry (ISRCTN86534580) and is ongoing. FINDINGS: The trial began enrolment on April 2, 2020, with randomisation to budesonide from Nov 27, 2020, until March 31, 2021, when the prespecified time to recovery superiority criterion was met. 4700 participants were randomly assigned to budesonide (n=1073), usual care alone (n=1988), or other treatments (n=1639). The primary analysis model includes 2530 SARS-CoV-2-positive participants, with 787 in the budesonide group, 1069 in the usual care group, and 974 receiving other treatments. There was a benefit in time to first self-reported recovery of an estimated 2·94 days (95% Bayesian credible interval [BCI] 1·19 to 5·12) in the budesonide group versus the usual care group (11·8 days [95% BCI 10·0 to 14·1] vs 14·7 days [12·3 to 18·0]; hazard ratio 1·21 [95% BCI 1·08 to 1·36]), with a probability of superiority greater than 0·999, meeting the prespecified superiority threshold of 0·99. For the hospital admission or death outcome, the estimated rate was 6·8% (95% BCI 4·1 to 10·2) in the budesonide group versus 8·8% (5·5 to 12·7) in the usual care group (estimated absolute difference 2·0% [95% BCI -0·2 to 4·5]; odds ratio 0·75 [95% BCI 0·55 to 1·03]), with a probability of superiority 0·963, below the prespecified superiority threshold of 0·975. Two participants in the budesonide group and four in the usual care group had serious adverse events (hospital admissions unrelated to COVID-19). INTERPRETATION: Inhaled budesonide improves time to recovery, with a chance of also reducing hospital admissions or deaths (although our results did not meet the superiority threshold), in people with COVID-19 in the community who are at higher risk of complications. FUNDING: National Institute of Health Research and United Kingdom Research Innovation.


Subject(s)
Budesonide/administration & dosage , COVID-19 Drug Treatment , Glucocorticoids/administration & dosage , Administration, Inhalation , Aged , Bayes Theorem , COVID-19/mortality , Female , Hospitalization , Humans , Male , Middle Aged , Prospective Studies , Risk Factors , SARS-CoV-2 , Treatment Outcome
5.
J Gen Virol ; 102(7)2021 07.
Article in English | MEDLINE | ID: mdl-34328828

ABSTRACT

Bangladesh is one of the top-ten most heavily burdened countries for viral hepatitis, with hepatitis B (HBV) infections responsible for the majority of cases. Recombinant and occult HBV infections (OBI) have been reported previously in the region. We investigated an adult fever cohort (n=201) recruited in Dhaka, to determine the prevalence of HBV and OBI. A target-enrichment deep sequencing pipeline was applied to samples with HBV DNA >3.0 log10 IU ml-1. HBV infection was present in 16/201 (8 %), among whom 3/16 (19 %) were defined as OBI (HBsAg-negative but detectable HBV DNA). Whole genome deep sequences (WGS) were obtained for four cases, identifying genotypes A, C and D. One OBI case had sufficient DNA for sequencing, revealing multiple polymorphisms in the surface gene that may contribute to the occult phenotype. We identified mutations associated with nucleos(t)ide analogue resistance in 3/4 samples sequenced, although the clinical significance in this cohort is unknown. The high prevalence of HBV in this setting illustrates the importance of opportunistic clinical screening and DNA testing of transfusion products to minimise OBI transmission. WGS can inform understanding of diverse disease phenotypes, supporting progress towards international targets for HBV elimination.


Subject(s)
Hepatitis B virus/genetics , Hepatitis B/epidemiology , Hepatitis B/virology , Inpatients , Adult , Bangladesh/epidemiology , DNA, Viral/analysis , DNA, Viral/genetics , Endemic Diseases , Female , Genome, Viral , Genotype , Hepatitis B Surface Antigens/analysis , Hepatitis B Surface Antigens/genetics , High-Throughput Nucleotide Sequencing , Humans , Male , Middle Aged , Mutation , Polymorphism, Genetic , Prevalence , Prospective Studies , RNA-Directed DNA Polymerase/genetics , Whole Genome Sequencing
6.
Vox Sang ; 115(8): 695-702, 2020 Nov.
Article in English | MEDLINE | ID: mdl-32597542

ABSTRACT

BACKGROUND: Transfusion-transmitted hepatitis E virus (HEV) infection is a potential risk to recipients of blood transfusions. Infection with HEV poses a high risk to immunocompromised recipients with an increased likelihood of developing chronic infection. The aims of this study were to determine the prevalence of past and active HEV infections in donors from the Western Cape and to identify the risk factors associated with infection. MATERIALS AND METHODS: We prospectively tested 10 250 blood donors for HEV infection. A risk factor sub-study investigated 250 donors who completed a questionnaire, and plasma samples were tested for HEV IgG antibodies and pooled for HEV RNA detection. The demographic and risk factors associated with HEV infection were assessed. The molecular study tested 10 000 individual donations using a commercial assay to detect viraemia. HEV viral load and genotype were also determined. RESULTS: The overall anti-HEV IgG seroprevalence was 42·8% (107/250) among donors participating in the risk factor sub-study. The likelihood of past HEV infection was higher with an increase in age. Of the 10 000 donor samples individually tested for HEV RNA, one sample was positive with a viral load of 7·9 x 104 IU/ml and belonged to HEV genotype 3. CONCLUSION: We found a high seroprevalence of anti-HEV IgG but a low HEV RNA prevalence among donors in the Western Cape, South Africa. The study provides evidence for a potential risk of HEV contamination in the blood supply in South Africa. A cost-benefit analysis is needed before considering the introduction of routine donor screening in our setting.


Subject(s)
Hepatitis Antibodies/blood , Hepatitis E/epidemiology , RNA, Viral/blood , Viremia/blood , Adolescent , Adult , Blood Donors/statistics & numerical data , Female , Hepatitis E/blood , Humans , Male , Middle Aged , Prevalence , Seroepidemiologic Studies , South Africa/epidemiology , Viral Load , Young Adult
7.
BMC Gastroenterol ; 20(1): 226, 2020 Jul 13.
Article in English | MEDLINE | ID: mdl-32660431

ABSTRACT

BACKGROUND: Patients co-infected with hepatitis B virus (HBV) and the human immunodeficiency virus (HIV) are at risk of developing hepatocellular carcinoma (HCC). In sub-Saharan Africa, the overlap between high HIV and HBV prevalence may increase the incidence of HCC. This study investigated the impact of HBV/HIV co-infection on age at presentation and survival of HCC. METHODS: Ethical approval was obtained to recruit, following informed written consent, patients diagnosed with HCC at oncology units at four South African hospitals. Between December 2012 and August 2015, patients newly diagnosed with HCC were recruited and provided demographic and clinical data and blood specimens. Patients were tested for HBV, hepatitis C virus (HCV) and HIV. Survival data was available for a subset of patients. RESULTS: Of 107 HCC cases, 83 (78%) were male. Median age was 46 years (range 18 to 90 years), 68/106 (64%) were HBsAg-positive, and 22/100 (22%) were HIV infected. Among HBV surface antigen (HBsAg)-positive HCC cases, 18/66 (27%) were HIV-infected compared to 3/34 (9%) among those that were HBsAg-negative (p = 0.04). A greater proportion of HBV/HIV co-infected cases were female than HBV mono-infected (6/18, 33% vs 6/47, 13%; p = 0.005). In addition, HBV/HIV co-infected females presented at a younger mean age (36.8 years) than HBV mono-infected women (50.5 years) (p = 0.09). Median survival was 82 days among the HIV-infected HCC patients compared to 181 days among those without HIV (p = 0.15). CONCLUSIONS: HCC is an important complication in the HIV/HBV infected patient. HIV-positive patients presented with HCC at a younger age than HIV-negative patients, this effect appears to be greater in women. These data provide more evidence supporting the call to address. HCC as a cause of morbidity and mortality in the HBV/HIV co-infected patient population. (281 words).


Subject(s)
Carcinoma, Hepatocellular , HIV Infections , Hepatitis B , Liver Neoplasms , Adolescent , Adult , Aged , Aged, 80 and over , Carcinoma, Hepatocellular/epidemiology , Female , HIV Infections/complications , HIV Infections/epidemiology , Hepatitis B/complications , Hepatitis B/epidemiology , Hepatitis B Surface Antigens , Hepatitis B virus , Humans , Liver Neoplasms/epidemiology , Male , Middle Aged , South Africa/epidemiology , Young Adult
8.
Euro Surveill ; 25(42)2020 10.
Article in English | MEDLINE | ID: mdl-33094717

ABSTRACT

SARS-CoV-2 IgG screening of 1,000 antenatal serum samples in the Oxford area, United Kingdom, between 14 April and 15 June 2020, yielded a 5.3% seroprevalence, mirroring contemporaneous regional data. Among the 53 positive samples, 39 showed in vitro neutralisation activity, correlating with IgG titre (Pearson's correlation p<0.0001). While SARS-CoV-2 seroprevalence in pregnancy cohorts could potentially inform population surveillance, clinical correlates of infection and immunity in pregnancy, and antenatal epidemiology evolution over time need further study.


Subject(s)
Antibodies, Neutralizing/blood , Antibodies, Viral/blood , Betacoronavirus/immunology , Coronavirus Infections/epidemiology , Immunoglobulin G/blood , Pandemics , Pneumonia, Viral/epidemiology , Population Surveillance , Pregnancy Complications, Infectious/blood , Pregnancy Trimester, First/blood , Adolescent , Adult , COVID-19 , Cohort Studies , Coronavirus Infections/blood , England/epidemiology , Enzyme-Linked Immunosorbent Assay , Female , Humans , Middle Aged , Pneumonia, Viral/blood , Pregnancy , Prenatal Diagnosis , Prevalence , SARS-CoV-2 , Seroepidemiologic Studies , Single-Blind Method , Young Adult
9.
BMC Infect Dis ; 18(1): 214, 2018 05 08.
Article in English | MEDLINE | ID: mdl-29739341

ABSTRACT

BACKGROUND: Co-infection with HIV negatively impacts the progression of chronic hepatitis B virus (HBV) infection, including causing rapid progression to liver fibrosis. Sub-Saharan Africa represents arguably the most important intersection of high endemicity of both chronic hepatitis B virus (HBV) infection and HIV infection. METHODS: We recruited 46 HBV/HIV-co-infected; 47 HBV-monoinfected; 39 HIV-monoinfected; and 37 HBV/HIV-uninfected patients from Tygerberg Hospital, Cape Town, South Africa. All HIV-infected patients were on antiretroviral therapy for ≥3 months. Liver stiffness measurements were assessed using the Fibroscan (Fibroscan 402, Echosens). Cell-based immunomarkers were measured by flow cytometry. Soluble serum/plasma immunomarkers were measured by Luminex technology and enzyme immunoassays. HIV (COBAS/Ampliprep TaqMan HIV-1) and HBV viral loads (in-house assay) were also performed. RESULTS: HBV/HIV co-infected patients showed significantly higher levels of immune activation %CD8+/HLA-DR+/CD38+ (median 30%, interquartile range: 17-53) and %CD8+/PD-1 (median 22%, interquartile range: 15-33), p ≤ 0.01 compared to all other study groups. Despite this, the HBV-mono-infected group had the highest proportion of patients with advanced liver fibrosis (≥13 kPa) as measured by Fibroscan (18%). HBV mono-infected patients showed highest expression of most cytokines including IL-17 and basic fibroblastic growth factor. There was significant positive correlation between detectable HIV and HBV viral replication and liver fibrosis but not immune activation or gut translocation. DISCUSSION: Highly-active antiretroviral therapy, including tenofovir, is effective against both HIV and HBV. Earlier therapy in the co-infected patients may therefore have controlled viral replication leading to better fibrosis scores when compared to HBV mono-infection in this study. On-going HBV and HIV viraemia, rather than microbial translocation or immune activation, appear to be the drivers of liver fibrosis. Moderate to advanced liver fibrosis in HBV-mono-infection may well indicate poor access to screening and treatment of HBV infection.


Subject(s)
HIV Infections/complications , Hepatitis B/complications , Liver Cirrhosis/virology , Adult , Antiretroviral Therapy, Highly Active , Biomarkers/blood , CD4-Positive T-Lymphocytes/virology , Coinfection/virology , Elasticity Imaging Techniques , Female , HIV Infections/drug therapy , HIV Infections/immunology , HIV Infections/virology , Hepatitis B/immunology , Hepatitis B/virology , Humans , Lipopolysaccharide Receptors/blood , Liver Cirrhosis/diagnostic imaging , Liver Cirrhosis/immunology , Male , Middle Aged , South Africa , Tenofovir/therapeutic use , Viral Load
10.
Euro Surveill ; 23(27)2018 07.
Article in English | MEDLINE | ID: mdl-29991383

ABSTRACT

We describe a gonorrhoea case with combined high-level azithromycin resistance and ceftriaxone resistance. In February 2018, a heterosexual male was diagnosed with gonorrhoea in the United Kingdom following sexual intercourse with a locally resident female in Thailand and failed treatment with ceftriaxone plus doxycycline and subsequently spectinomycin. Resistance arose from two mechanisms combining for the first time in a genetic background similar to a commonly circulating strain. Urgent action is essential to prevent further spread.


Subject(s)
Drug Resistance, Bacterial/drug effects , Gonorrhea/drug therapy , Neisseria gonorrhoeae/drug effects , Neisseria gonorrhoeae/isolation & purification , Spectinomycin/therapeutic use , Adult , Anti-Bacterial Agents/therapeutic use , Azithromycin/pharmacology , Ceftriaxone/pharmacology , Doxycycline/pharmacology , England , Gonorrhea/diagnosis , Humans , Male , Microbial Sensitivity Tests , Neisseria gonorrhoeae/genetics , Sequence Analysis , Thailand , Travel , Treatment Failure
11.
BMC Infect Dis ; 17(Suppl 1): 706, 2017 11 01.
Article in English | MEDLINE | ID: mdl-29143625

ABSTRACT

BACKGROUND: Approximately 8% of HIV-infected individuals are co-infected with hepatitis B virus (HBV) in sub-Saharan Africa (SSA). Knowledge of HBV status is important to guide optimal selection of antiretroviral therapy (ART) and monitor/prevent liver-related complications. We describe changes in testing practices and management of HBV infection over a 3-year period in HIV clinics across SSA. METHODS: A medical chart review was conducted in large urban HIV treatment centers in Côte d'Ivoire (3 sites), Benin, Burkina Faso, Cameroon, Kenya, Senegal, South Africa, Togo, Uganda and Zambia (1 site each). Of the patients who started ART between 2010 and 2012, 100 per year were randomly selected from each clinic. Demographic, clinical and laboratory information as well as individual treatment histories were collected using a standardized questionnaire. We examined changes over time in the proportion of patients screened for HBV infection (HBV surface antigen [HBsAg]-positivity), identified predictors of HBV testing using logistic regression, and assessed the proportion of patients initiating a tenofovir (TDF)-containing ART regimen. RESULTS: Overall, 3579 charts of patients initiating ART (64.4% female, median age 37 years) were reviewed in 12 clinics. The proportion of patients screened for HBsAg increased from 17.8% in 2010 to 24.4% in 2012 overall, and ranged from 0.7% in Kenya to 96% in South Africa. In multivariable analyses, age and region were associated with HBsAg screening. Among 759 individuals tested, 88 (11.6%; 95% confidence interval [CI] 9.4-14.1) were HBV-infected, of whom 71 (80.7%) received a TDF-containing ART regimen. HBsAg-positive individuals were twice as likely to receive a TDF-containing first-line ART regimen compared to HBsAg-negative patients (80.7% vs. 40.3%, p < 0.001). The proportion of patients on TDF-containing ART increased from 57.9% in 2010 to 90.2% in 2012 in HIV/HBV-co-infected patients (Chi-2 test for trend: p = 0.01). Only 114 (5.0%) patients were screened for anti-HCV antibodies and one of them (0.9%, 95% CI 0.02-4.79) had a confirmed HCV infection. CONCLUSIONS: The systematic screening for HBV infection in HIV-positive patients before ART initiation was limited in most African countries and its uptake varied widely across clinics. Overall, the prescription of TDF increased over time, with 90% of HIV/HBV-coinfected patients receiving this drug in 2012.


Subject(s)
HIV Infections/diagnosis , Hepatitis B/diagnosis , Africa , Antirheumatic Agents/therapeutic use , HIV Infections/complications , HIV Infections/drug therapy , Hepatitis B/complications , Hepatitis B/virology , Hepatitis B Surface Antigens/blood , Hepatitis B virus/immunology , Hepatitis C/complications , Hepatitis C/diagnosis , Hepatitis C Antibodies/blood , Humans , Multivariate Analysis , Retrospective Studies
14.
Lancet Gastroenterol Hepatol ; 9(4): 323-332, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38367633

ABSTRACT

BACKGROUND: Hepatitis B virus (HBV) elimination requires expanding and decentralising HBV care services. However, peripheral health facilities lack access to diagnostic tools to assess eligibility for antiviral therapy. Through the Hepatitis B in Africa Collaborative Network (HEPSANET), we aimed to develop and evaluate a score using tests generally available at lower-level facilities, to simplify the evaluation of antiviral therapy eligibility in people living with HBV. METHODS: We surveyed the availability of clinical and laboratory parameters across different health-care levels in sub-Saharan Africa. We used data from the HEPSANET dataset, the largest cross-sectional dataset of treatment-naive people living with HBV in sub-Saharan Africa, to derive and validate the score. Participants from this dataset were included in the analysis if they were aged 18 years or older and had liver fibrosis stages determined by a liver stiffness measurement or liver histopathology. Participants with co-infections or metabolic disorders were excluded. We allocated participants to the derivation and validation sets by geographical site. In the derivation set, we used stepwise logistic regression to identify the best performing parameters for identifying participants that met the 2017 European Association for the Study of the Liver (EASL) criteria. Regression coefficients were converted into integer points to construct simplified algorithms for different health-care levels. In the validation set, we estimated the area under the receiver operating characteristic, sensitivity, and specificity of the simplified algorithm for identifying antiviral therapy eligibility defined by the 2017 EASL criteria. FINDINGS: At 11 sites from eight countries that returned surveys, aspartate aminotransferase (AST), alanine aminotransferase (ALT), and platelet count were generally available at district hospital levels, and hepatitis B e antigen and point-of-care HBV DNA tests were available only at regional and provincial hospital levels or above. Among 2895 participants included from the HEPSANET database (1740 [60·1%] male, 1155 [39·9%] female), 409 (14·1%) met EASL antiviral therapy eligibility criteria. In the derivation set, the optimal district-level hospital score was: ALT (IU/L), less than 40 (0 points), 40-79 (+1), 80 or greater (+2); AST (IU/L), less than 40 (0), 40-79 (+1), 80 or greater (+2); and platelet counts (109/L), less than 100 (+2), 100-149 (+1), 150 or greater (0). When combined with family history and clinical data for decompensated cirrhosis that do not require any biological tests, a cut-off of 2 points or more had a sensitivity and specificity of 82% (95% CI 76-86) and 95% (93-96) to identify treatment-eligible individuals in the derivation set, and 78% (71-85) and 87% (86-89) in the validation set, respectively. INTERPRETATION: Using a score incorporating platelet counts, AST, and ALT, the majority of people living with HBV requiring antiviral therapy can be identified. Our findings suggest that clinical staging can be decentralised down to district hospital level in sub-Saharan Africa. FUNDING: European Association for the Study of the Liver Foundation, John C Martin Foundation. TRANSLATION: For the French translation of the abstract see Supplementary Materials section.


Subject(s)
Hepatitis B, Chronic , Hepatitis B , Humans , Male , Female , Cross-Sectional Studies , Hepatitis B, Chronic/diagnosis , Hepatitis B, Chronic/drug therapy , Hepatitis B/diagnosis , Hepatitis B/drug therapy , Hepatitis B/epidemiology , Hepatitis B virus/genetics , Africa , Antiviral Agents/therapeutic use
15.
BMJ Open ; 13(2): e061349, 2023 02 20.
Article in English | MEDLINE | ID: mdl-36806133

ABSTRACT

OBJECTIVE: To establish consensus definitions for necrotising otitis externa (NOE) to facilitate the diagnosis and exclusion of NOE in clinical practice and expedite future high-quality study of this neglected condition. DESIGN: The work comprised of a systematic review of the literature, five iterative rounds of consultation via a Delphi process and open discussion within the collaborative. An expert panel analysed the results to produce the final outputs which were shared with and endorsed by national specialty bodies. SETTING: Secondary care in the UK. PARTICIPANTS: UK clinical specialists practising in infection, ear nose and throat (ENT) surgery or radiology. MAIN OUTCOME MEASURES: Definitions and statements meeting the following criteria were accepted: (a) minimum of 70% of respondents in agreement or strong agreement with a definition/statement AND (b) <15% of respondents in disagreement or strong disagreement with a definition/statement. RESULTS: Seventy-four UK clinicians specialising in ENT, Infection and Radiology with a special interest in NOE took part in the work which was undertaken between 2019 and 2021. The minimum response rate for a Round was 76%. Consensus criteria for all proposed case definitions, outcome definitions and consensus statements were met in the fifth round. CONCLUSIONS: This work distills the clinical opinion of a large group of multidisciplinary specialists from across the UK to create practical definitions and statements to support clinical practice and research for NOE. This is the first step in an iterative process. Further work will seek to validate and test these definitions and inform their evolution.


Subject(s)
Otitis Externa , Radiology , Humans , Otitis Externa/diagnosis , Delphi Technique , Consensus , United Kingdom
16.
J Virus Erad ; 9(4): 100355, 2023 Dec.
Article in English | MEDLINE | ID: mdl-38213904

ABSTRACT

Chronic hepatitis B infection (CHB) is a significant problem worldwide with around 300 million people infected. Ambitious goals have been set towards its elimination as a public health threat by 2030. However, accurate seroprevalence estimates in many countries are lacking or fail to provide representative population estimates, particularly in the WHO African Region (AFRO). This means the full extent of HBV infection is not well described, leading to a lack of investment in diagnostics, treatment and disease prevention. Clinical trials in the WHO AFRO region have been increasing over time and many test for infectious diseases including hepatitis B virus (HBV) to determine baseline eligibility for participants, however these screening data are not reported. Here we review data from six clinical trials completed at the KEMRI-Wellcome Trust Research Programme between 2016 and 2023 that screened for HBV using hepatitis B surface antigen (HBsAg) as part of the trial exclusion criteria. 1727 people had HBsAg results available, of which 60 tested positive. We generated a crude period HBV prevalence estimate of 3.5% (95% CI 2.6-4.5%), and after standardisation for sex and age to account for the population structure of the Kilifi Health Demographics Surveillance System (KHDSS), the prevalence estimate increased to 5.0% (95% CI 3.4-6.6%). The underrepresentation of women in these trials was striking with 1263/1641 (77%) of participants being male. Alanine aminotransferase (ALT) was significantly higher in the HBsAg positive group but was not outside the normal range. We argue that routine collation and publishing of data from clinical trials could increase precision and geographical representation of global HBV prevalence estimates, enabling evidence-based provision of clinical care pathways and public health interventions to support progress towards global elimination targets. We do acknowledge when using clinical trials data for seroprevalence estimates, that local population structure data is necessary to allow standardisation of results, and the point of care tests used here are limited in sensitivity and specificity.

17.
BMC Glob Public Health ; 1(1): 24, 2023.
Article in English | MEDLINE | ID: mdl-38798823

ABSTRACT

There are 82 million people living with hepatitis B (PLWHB) in the World Health Organization Africa region, where it is the main cause of liver disease. Effective vaccines have been available for over 40 years, yet there are 990,000 new infections annually, due to limited implementation of hepatitis B birth dose vaccination and antenatal tenofovir prophylaxis for highly viraemic women, which could eliminate mother-to-child transmission. Despite effective and cheap antiviral treatment which can suppress hepatitis B virus replication and reduce the risk of hepatocellular carcinoma (HCC), < 2% of PLWHB are diagnosed, and only 0.1% are treated. As a result, PLWHB are frequently diagnosed only when they have already developed decompensated cirrhosis and late-stage HCC, and consequently 80,000 hepatitis B-associated deaths occur each year. Major barriers include complex treatment guidelines which were derived from high-income settings, lack of affordable diagnostics, lack or insufficient domestic funding for hepatitis care, and limited healthcare infrastructure. Current treatment criteria may overlook patients at risk of cirrhosis and HCC. Therefore, expanded and simplified treatment criteria are needed. We advocate for decentralized community treatment programmes, adapted for low-resource and rural settings with limited laboratory infrastructure. We propose a strategy of treat-all except patients fulfilling criteria that suggest low risk of disease progression. Expanded treatment represents a financial challenge requiring concerted action from policy makers, industry, and international donor agencies. It is crucial to accelerate hepatitis B elimination plans, integrate hepatitis B care into existing healthcare programmes, and prioritize longitudinal and implementation research to improve care for PLWHB.

18.
BMJ Open ; 13(8): e069176, 2023 08 07.
Article in English | MEDLINE | ID: mdl-37550022

ABSTRACT

INTRODUCTION: There is an urgent need to determine the safety, effectiveness and cost-effectiveness of novel antiviral treatments for COVID-19 in vaccinated patients in the community at increased risk of morbidity and mortality from COVID-19. METHODS AND ANALYSIS: PANORAMIC is a UK-wide, open-label, prospective, adaptive, multiarm platform, randomised clinical trial that evaluates antiviral treatments for COVID-19 in the community. A master protocol governs the addition of new antiviral treatments as they become available, and the introduction and cessation of existing interventions via interim analyses. The first two interventions to be evaluated are molnupiravir (Lagevrio) and nirmatrelvir/ritonavir (Paxlovid). ELIGIBILITY CRITERIA: community-dwelling within 5 days of onset of symptomatic COVID-19 (confirmed by PCR or lateral flow test), and either (1) aged 50 years and over, or (2) aged 18-49 years with qualifying comorbidities. Registration occurs via the trial website and by telephone. Recruitment occurs remotely through the central trial team, or in person through clinical sites. Participants are randomised to receive either usual care or a trial drug plus usual care. Outcomes are collected via a participant-completed daily electronic symptom diary for 28 days post randomisation. Participants and/or their Trial Partner are contacted by the research team after days 7, 14 and 28 if the diary is not completed, or if the participant is unable to access the diary. The primary efficacy endpoint is all-cause, non-elective hospitalisation and/or death within 28 days of randomisation. Multiple prespecified interim analyses allow interventions to be stopped for futility or superiority based on prespecified decision criteria. A prospective economic evaluation is embedded within the trial. ETHICS AND DISSEMINATION: Ethical approval granted by South Central-Berkshire REC number: 21/SC/0393; IRAS project ID: 1004274. Results will be presented to policymakers and at conferences, and published in peer-reviewed journals. TRIAL REGISTRATION NUMBER: ISRCTN30448031; EudraCT number: 2021-005748-31.


Subject(s)
COVID-19 , Humans , Middle Aged , Aged , Antiviral Agents , SARS-CoV-2 , Prospective Studies , Treatment Outcome , Randomized Controlled Trials as Topic
19.
Int J STD AIDS ; 33(10): 939-942, 2022 Sep.
Article in English | MEDLINE | ID: mdl-35968569

ABSTRACT

High rates of azole-resistance and limited availability of pharmacological agents within the UK can make recurrent vulvovaginal candidiasis (RVVC) with Candida glabrata a challenging infection to treat. In this report, we describe our experience in managing C. glabrata RVVC and present the case of a patient with poor response to therapy and a protracted treatment course, spanning almost 4 years. We also highlight the need for evidence-based management protocols that consider the national availability of alternative treatments.


Subject(s)
Candida glabrata , Candidiasis, Vulvovaginal , Azoles/therapeutic use , Candidiasis, Vulvovaginal/diagnosis , Candidiasis, Vulvovaginal/drug therapy , Female , Humans , Recurrence
20.
J R Coll Physicians Edinb ; 52(1): 14-19, 2022 03.
Article in English | MEDLINE | ID: mdl-36146962

ABSTRACT

BACKGROUND: Stenotrophomonas maltophilia causes opportunistic respiratory infections and is associated with declining lung function in patients with cystic fibrosis (CF). Risk factors for carrying S. maltophilia remain unclear. METHODS: We conducted a retrospective study of patients yielding ⩾1 respiratory S. maltophilia isolate at the Oxford University Hospitals Trust between 2014 and 2019 and a cohort study of S. maltophilia carriage in CF patients attending annual review in 2018. RESULTS: Seven hundred and forty isolates were identified from 238 patients (median 1.0 isolate/patient). Predisposing conditions included invasive ventilation (29.8%), CF (25.6%) and non-CF bronchiectasis (24.4%). The rates of Stenotrophomonas isolates and co-trimoxazole resistance were stable over time. About 10.8% of isolates were co-trimoxazole-resistant, with resistance more common in CF than in other diagnoses (29.5% vs 5.8%, p < 0.001). No clinical features were significantly associated with S. maltophilia carriage in the CF population. DISCUSSION: We present new insight into the epidemiology of Stenotrophomonas colonisation/infection and identify increased co-trimoxazole resistance in CF isolates.


Subject(s)
Cystic Fibrosis , Gram-Negative Bacterial Infections , Stenotrophomonas maltophilia , Anti-Bacterial Agents/therapeutic use , Cohort Studies , Cystic Fibrosis/complications , Cystic Fibrosis/drug therapy , Gram-Negative Bacterial Infections/complications , Gram-Negative Bacterial Infections/diagnosis , Gram-Negative Bacterial Infections/epidemiology , Humans , Lung , Retrospective Studies , Trimethoprim, Sulfamethoxazole Drug Combination/therapeutic use
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