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1.
Sci Rep ; 14(1): 11679, 2024 05 22.
Article in English | MEDLINE | ID: mdl-38778088

ABSTRACT

A pilot implementation of the rapid diagnostic test program was performed to collect evidence of the feasibility, acceptability, and uptake of the COVID-19 AgRDT in Tanzania. We conducted a prospective cross-sectional study in the community to provide quantitative details of the pilot implementation of the antigen rapid diagnostic test (AgRDT) in Tanzania. This study was undertaken between March 2022 and September 2022. The pilot was implemented by distributing and offering test kits to people suspected of having COVID-19 in Dar es Salaam through community health workers. A total of 1039 participants consented to participate in the survey. All the participants reported having heard about the disease. The radio was the main source (93.2%) of information on COVID-19. With regard to prevention measures, approximately 930 (89.5%) of the respondents thought that COVID-19 could be prevented. Approximately 1035 (99.6%) participants reported that they were willing to have a COVID-19 AgRDT test and wait for 20 min for the results. With regard to the participants' opinions on the AgRDT device, the majority 907 (87.3%) felt comfortable with the test, and 1,029 (99.0%) were very likely to recommend the AgRDT test to their friends. The majority of participants 848 (83.1%) mentioned that they would be willing to pay for the test if it was not available for free. The results suggest overall good acceptance of the COVID-19 AgRDT test. It is evident that the use of trained community healthcare workers allows easy screening of all possible suspects and helps them receive early treatment.


Subject(s)
COVID-19 , Community Health Workers , Humans , Tanzania/epidemiology , COVID-19/epidemiology , COVID-19/prevention & control , Female , Male , Adult , Pilot Projects , Cross-Sectional Studies , Middle Aged , Prospective Studies , SARS-CoV-2/isolation & purification , Young Adult , Adolescent
2.
J Med Educ Curric Dev ; 11: 23821205241253668, 2024.
Article in English | MEDLINE | ID: mdl-38736713

ABSTRACT

Objective: University College London (UCL) and Newgiza University (NGU) have been in an academic collaboration since 2016 to establish undergraduate healthcare programmes in Egypt with an underlying ethos of capacity building and co-development. We explored impacts of pandemic-related travel restrictions on staff across both organisations. Methods: We conducted 30 semi-structured interviews with academic and professional services staff from UCL and NGU schools of medicine, dentistry, and pharmacy. Data were jointly coded using reflexive thematic analysis and categorised according to the American Council on Education's Comprehensive Internationalisation Framework. Results: Nine themes were identified, which related to each of the six components of the framework. In addition to mobility, participants' experiences also spread across the other five components (institutional commitment, leadership, curriculum, faculty support, and partnerships). Successful adaptations were made and staff felt able to 'keep the show on the road'. However, staff remained keen to keep in-person engagement a priority when possible, especially for quality management site visits. Conclusions: Travel restrictions can have widespread impacts on all aspects of international collaborations. In this well-established relationship, there was sufficient resilience to withstand these impacts and, many positive unintended consequences emerged. A hybrid engagement model should be prioritised in future partnerships.

4.
J Pharm Bioallied Sci ; 16(Suppl 1): S742-S744, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38595419

ABSTRACT

Background: Smoking is a well-established risk factor for periodontitis, a chronic inflammatory disease of the oral cavity. While smoking cessation has been linked to improved overall health, its specific impact on periodontal health and gingival inflammation in individuals with periodontitis remains less explored. Materials and Methods: We conducted a prospective cohort study involving 200 smokers diagnosed with periodontitis. Participants were divided into two groups: Group A received comprehensive smoking cessation interventions, including counseling and pharmacotherapy, while group B continued smoking without intervention. Periodontal health was assessed through clinical parameters, including probing depth (PD) and clinical attachment level (CAL), at baseline and 6 months post intervention. Gingival inflammation was evaluated using the Gingival Index (GI). Results: After 6 months, group A exhibited a significant reduction in mean PD (from 4.5 mm to 3.2 mm) and CAL (from 5.0 mm to 3.5 mm) compared to group B. Conversely, group B showed no significant change in these parameters. The GI score significantly decreased in group A (from 2.8 to 1.2) but remained unchanged in group B. Furthermore, group A demonstrated a higher rate of smoking cessation (72%) compared to group B (14%). Conclusion: Smoking cessation interventions play a crucial role in improving periodontal health and reducing gingival inflammation in smokers with periodontitis. The observed reductions in PD, CAL, and gingival inflammation highlight the potential benefits of smoking cessation on oral health outcomes in this high-risk population.

5.
J Pharm Bioallied Sci ; 16(Suppl 1): S675-S677, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38595490

ABSTRACT

Background: The process of post-extraction socket healing is critical for ensuring proper tissue repair and minimizing complications in dental practice. Suturing techniques play a pivotal role in this process, influencing wound closure, hemostasis, and overall healing. Materials and Methods: This prospective clinical trial involved 80 participants who required single-tooth extractions. Patients were randomly assigned to four groups, each receiving a distinct suturing technique: simple interrupted sutures, horizontal mattress sutures, vertical mattress sutures, and continuous sutures. Standardized assessments, including clinical examination and cone-beam computed tomography (CBCT) scans, were performed at baseline, 1 week, and 4 weeks post-extraction. Wound dehiscence, soft tissue healing, and bone preservation were evaluated. Results: At 1-week post-extraction, the continuous suture group exhibited the lowest rate of wound dehiscence (5%) compared to other groups (simple interrupted, 15%; horizontal mattress, 10%; vertical mattress, 12%). Soft tissue healing scores at 4 weeks were significantly higher in the continuous suture group (8.7 ± 0.5) than in the other groups (simple interrupted, 7.2 ± 0.8; horizontal mattress, 7.8 ± 0.7; vertical mattress, 7.5 ± 0.6). CBCT analysis revealed superior bone preservation in the continuous suture group (98% remaining bone volume) compared to the other groups (simple interrupted, 92%; horizontal mattress, 95%; vertical mattress, 94%). Conclusion: This study demonstrates that the continuous suturing technique offers advantages in post-extraction socket healing, including reduced wound dehiscence, improved soft tissue healing, and better bone preservation.

6.
J Pharm Bioallied Sci ; 16(Suppl 1): S678-S680, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38595556

ABSTRACT

Background: Temporomandibular joint disorders (TMDs) encompass a range of clinical conditions affecting the temporomandibular joint (TMJ) and associated structures. Management approaches for TMDs vary and include both surgical and non-surgical interventions. Materials and Methods: In this retrospective cohort study, medical records of 150 patients diagnosed with TMDs were reviewed. Patients were categorized into two groups: surgical intervention and non-surgical intervention. The surgical group underwent various surgical procedures, including arthroscopy, arthroplasty, and joint replacement, while the non-surgical group received conservative treatments such as physical therapy, pharmacotherapy, and occlusal splints. Pain levels, TMJ function, quality of life (QoL), and patient satisfaction were assessed at baseline and post-treatment (6 months and 1 year). Results: At the 6-month follow-up, both groups experienced a significant reduction in pain scores (surgical group: 6.3 ± 1.2 to 2.4 ± 0.9, non-surgical group: 6.1 ± 1.1 to 3.2 ± 1.0). TMJ function improved in both groups (surgical group: 2.5 ± 0.8 to 4.8 ± 0.6, non-surgical group: 2.6 ± 0.7 to 4.2 ± 0.9). QoL scores increased (surgical group: 35.2 ± 4.6 to 50.3 ± 5.1, non-surgical group: 35.5 ± 4.2 to 45.7 ± 4.8), and patient satisfaction rates were high (surgical group: 92%, non-surgical group: 87%) at the 1-year follow-up. Conclusion: Both surgical and non-surgical management approaches demonstrated significant improvements in pain relief, TMJ function, QoL, and patient satisfaction for individuals with TMDs.

7.
BMC Oral Health ; 24(1): 185, 2024 Feb 05.
Article in English | MEDLINE | ID: mdl-38317147

ABSTRACT

BACKGROUND: The study aimed to investigate the association between maternal cocaine abuse during pregnancy and the prevalence of cleft lip/palate (CL/P) in offspring, synthesizing existing evidence through a systematic review and meta-analysis. CL/P is a congenital craniofacial anomaly with complex etiology, and prior research has suggested potential links between maternal cocaine use and CL/P. However, these associations remain inconclusive. METHODS: A comprehensive literature search was conducted to identify relevant studies published up to the study's cutoff date in September 2021. Several databases were systematically searched using predefined search terms. Inclusion criteria were set to encompass studies reporting on the prevalence of CL/P in infants born to mothers with a history of cocaine use during pregnancy, with a comparison group of non-cocaine-using mothers. Data were extracted, and a meta-analysis was performed using a random-effects model to calculate pooled odds ratios (OR) and relative risks (RR) with their respective 95% confidence intervals (CI). RESULTS: The review included data from 4 studies that met the inclusion criteria. The combined OR from two studies was 0.05 (95% CI: 0.00, 4.41), which does not suggest a statistically significant association between prenatal cocaine exposure and the incidence of CL/P due to the confidence interval crossing the null value. Additionally, the combined RR was 0.17 (95% CI: 0.04, 0.66), indicating a statistically significant decrease in the risk of CL/P associated with prenatal cocaine exposure. These results, with an OR that is not statistically significant and an RR suggesting decreased risk, should be interpreted with caution due to considerable heterogeneity and variability among the included studies' findings. Further research is needed to clarify these associations. CONCLUSION: The findings from this systematic review and meta-analysis suggest that maternal cocaine use during pregnancy is not a statistically significant independent risk factor for the development of CL/P in offspring. These results underscore the multifactorial nature of CL/P etiology and emphasize the importance of considering other genetic, environmental, and nutritional factors in understanding the condition's origins. While the study provides important insights, limitations such as data heterogeneity and potential confounders should be acknowledged. Future research should adopt rigorous study designs and explore a broader range of potential risk factors to comprehensively elucidate CL/P development.


Subject(s)
Cleft Lip , Cleft Palate , Cocaine-Related Disorders , Cocaine , Infant , Pregnancy , Female , Humans , Cleft Lip/etiology , Cleft Lip/genetics , Cleft Palate/etiology , Cleft Palate/genetics , Incidence , Cocaine-Related Disorders/complications , Cocaine-Related Disorders/epidemiology , Parents , Cocaine/adverse effects
8.
Gels ; 10(2)2024 Feb 07.
Article in English | MEDLINE | ID: mdl-38391466

ABSTRACT

Bioplastic films comprising both plant- and animal-derived proteins have the potential to integrate the optimal characteristics inherent to the specific domain, which offers enormous potential to develop polymer alternatives to petroleum-based plastic. Herein, we present a facile strategy to develop hybrid films comprised of both wheat gluten and wool keratin proteins for the first time, employing a ruthenium-based photocrosslinking strategy. This approach addresses the demand for sustainable materials, reducing the environmental impact by using proteins from renewable and biodegradable sources. Gluten film was fabricated from an alcohol-water mixture soluble fraction, largely comprised of gliadin proteins. Co-crosslinking hydrolyzed low-molecular-weight keratin with gluten enhanced its hydrophilic properties and enabled the tuning of its physicochemical properties. Furthermore, the hierarchical structure of the fabricated films was studied using neutron scattering techniques, which revealed the presence of both hydrophobic and hydrophilic nanodomains, gliadin nanoclusters, and interconnected micropores in the matrix. The films exhibited a largely (>40%) ß-sheet secondary structure, with diminishing gliadin aggregate intensity and increasing micropore size (from 1.2 to 2.2 µm) with an increase in keratin content. The hybrid films displayed improved molecular chain mobility, as evidenced by the decrease in the glass-transition temperature from ~179.7 °C to ~173.5 °C. Amongst the fabricated films, the G14K6 hybrid sample showed superior water uptake (6.80% after 30 days) compared to the pristine G20 sample (1.04%). The suitability of the developed system for multilayer 3D printing has also been demonstrated, with the 10-layer 3D-printed film exhibiting >92% accuracy, which has the potential for use in packaging, agricultural, and biomedical applications.

9.
J Clin Invest ; 134(6)2024 Jan 09.
Article in English | MEDLINE | ID: mdl-38194272

ABSTRACT

BACKGROUNDSanaria PfSPZ Vaccine, composed of attenuated Plasmodium falciparum (Pf) sporozoites (SPZ), protects against malaria. We conducted this clinical trial to assess the safety and efficacy of PfSPZ Vaccine in HIV-positive (HIV+) individuals, since the HIV-infection status of participants in mass vaccination programs may be unknown.METHODSThis randomized, double-blind, placebo-controlled trial enrolled 18- to 45-year-old HIV-negative (HIV-) and well-controlled HIV+ Tanzanians (HIV viral load <40 copies/mL, CD4 counts >500 cells/µL). Participants received 5 doses of PfSPZ Vaccine or normal saline (NS) over 28 days, followed by controlled human malaria infection (CHMI) 3 weeks later.RESULTSThere were no solicited adverse events in the 9 HIV- and 12 HIV+ participants. After CHMI, 6 of 6 NS controls, 1 of 5 HIV- vaccinees, and 4 of 4 HIV+ vaccinees were Pf positive by quantitative PCR (qPCR). After immunization, anti-Pf circumsporozoite protein (anti-PfCSP) (isotype and IgG subclass) and anti-PfSPZ antibodies, anti-PfSPZ CD4+ T cell responses, and Vδ2+ γδ CD3+ T cells were nonsignificantly higher in HIV- than in HIV+ vaccinees. Sera from HIV- vaccinees had significantly higher inhibition of PfSPZ invasion of hepatocytes in vitro and antibody-dependent complement deposition (ADCD) and Fcγ3B binding by anti-PfCSP and ADCD by anti-cell-traversal protein for ookinetes and SPZ (anti-PfCelTOS) antibodies.CONCLUSIONSPfSPZ Vaccine was safe and well tolerated in HIV+ vaccinees, but not protective. Vaccine efficacy was 80% in HIV- vaccinees (P = 0.012), whose sera had significantly higher inhibition of PfSPZ invasion of hepatocytes and enrichment of multifunctional PfCSP antibodies. A more potent PfSPZ vaccine or regimen is needed to protect those living with HIV against Pf infection in Africa.TRIAL REGISTRATIONClinicalTrials.gov NCT03420053.FUNDINGEquatorial Guinea Malaria Vaccine Initiative (EGMVI), made up of the Government of Equatorial Guinea Ministries of Mines and Hydrocarbons, and Health and Social Welfare, Marathon Equatorial Guinea Production Limited, Noble Energy, Atlantic Methanol Production Company, and EG LNG; Swiss government, through ESKAS scholarship grant no. 2016.0056; Intramural Research Program of the National Institute of Allergy and Infectious Diseases, NIH; NIH grant 1U01AI155354-01.


Subject(s)
HIV Infections , Malaria Vaccines , Malaria, Falciparum , Adolescent , Adult , Humans , Middle Aged , Young Adult , Antibodies, Protozoan , East African People , HIV Infections/complications , Malaria Vaccines/immunology , Malaria, Falciparum/prevention & control , Plasmodium falciparum , Tanzania , HIV Seronegativity , HIV Seropositivity , Vaccine Efficacy
10.
J Am Soc Echocardiogr ; 37(3): 288-299, 2024 Mar.
Article in English | MEDLINE | ID: mdl-37972792

ABSTRACT

INTRODUCTION: Noninvasive cardiac diagnostic tests (NITs) for the diagnosis of coronary artery disease have been estimated to cost >$3 billion annually in the United States alone and have recently undergone scrutiny over concerns of overuse. Consequently, comparing costs of different NIT testing strategies is of urgent importance to health care planning. METHODS: We utilized population-based administrative and clinical data from Ontario, Canada, to compare downstream costs between 4 available NIT testing strategies (graded exercise stress testing [GXT], stress echocardiography, cardiac computed tomography angiography [CCTA], and myocardial perfusion imaging [MPI] as well as no testing), among patients evaluated for chest pain. To compare costs among the tested (overall and by testing strategy) and nontested groups, we used a log-gamma generalized linear model to account for the skewed distribution of health care cost data, adjusting for relevant clinical covariates. RESULTS: A total of 2,340,699 patients were included in our cohort, of whom 481,170 (21%) patients received 1 of the 4 NITs. Among patients who received a NIT, 254,492 (53%) received a GXT as their initial test, 154,137 (32%) received MPI, 69,160 (14%) received a stress echo, and 3,381 (<1%) received a CCTA. After adjustment for differences in baseline patient characteristics, receipt of any NIT was associated with an approximate 12% reduction in downstream 1-year mean costs (cost ratio = 0.88; 95% CI, 0.87, 0.89) compared with those without any testing. Comparing the different testing strategies with no testing, both GXT (cost ratio = 0.80; 95% CI, 0.79-0.81) and stress echocardiography (cost ratio = 0.82; 95% CI, 0.81-0.83) were associated with the lower downstream costs, while both MPI (cost ratio = 1.26; 95% CI, 1.25, 1.27) and CCTA (cost ratio = 1.29; 95% CI, 1.23, 1.35) were associated with higher downstream costs. CONCLUSIONS: In a large population-based cohort consisting of >2 million people evaluated for chest pain, we report that receipt of noninvasive testing was associated with a 12% reduction in downstream costs when compared with no testing. Graded exercise stress testing and stress echocardiography were associated with the least downstream costs, whereas CCTA and MPI were associated with higher costs when compared with no testing. These findings may help inform testing decisions in chest pain patients.


Subject(s)
Coronary Artery Disease , Humans , United States , Coronary Angiography/methods , Coronary Artery Disease/diagnostic imaging , Chest Pain/diagnostic imaging , Diagnostic Tests, Routine , Ontario/epidemiology
12.
Anat Sci Educ ; 17(2): 227-238, 2024 Mar.
Article in English | MEDLINE | ID: mdl-37943092

ABSTRACT

Social media platforms such as Instagram are becoming increasingly popular sources for students to access anatomy educational resources. This review used content analysis to examine posts under the hashtag #anatomynotes and is the first to map the characteristics of anatomy education posts on Instagram and determine any temporal changes. Sample posts were gathered from April 2019 and April 2021 and categorized according to the technical format, purpose and author credentials. Engagement was recorded in the form of likes and comments. Overall, posts depicting illustrations remained the most popular format within both time periods. Three-dimensional models saw an increase in popularity with a 62.5% rise. Students remained the most common author type throughout and increased further in 2021 by 25%. Clinician authors and posts focusing on clinical education also increased in 2021 by 17.9% and 227%, respectively. Humor-based posts saw the greatest increase among the post purposes, with 1000% more recorded in 2021. Engagement overall saw a decline with notably significant reductions in average likes per post among all text-based posts (-72%, p < 0.0001), all illustrative posts (-51%, p = 0.0013), and a decline in the presence of comments among all text-based posts (-65.1%, p = 0.0158). These findings highlight that Instagram is a popular platform for facilitating near-peer teaching while increasingly providing a space where students and clinicians can interact. Additionally, it highlights the benefits of the platform for visually focused learners. However, future research should seek to determine whether Instagram can facilitate deeper learning and have an impact on academic and clinical performance.


Subject(s)
Anatomy , Social Media , Humans , Anatomy/education
14.
J Am Coll Surg ; 238(2): 157-165, 2024 Feb 01.
Article in English | MEDLINE | ID: mdl-37796140

ABSTRACT

BACKGROUND: In 2006, Cancer Care Ontario created Surgical Oncology Standards for the delivery of hepatopancreatobiliary (HPB) surgery including hepatectomy and pancreaticoduodenectomy (PD). Our objective was to identify the impact of standardization on outcomes after HPB surgery in Ontario, Canada. STUDY DESIGN: This study was a population-level analysis of patients undergoing hepatectomy or PD (2003 to 2019). Logistic regression models were used to compare 30- and 90-day mortality and length of stay (LOS) before (2003 to 2006), during (2007 to 2011), and after (2012 to 2019) standardization. Interrupted time series models were used to co-analyze secular trends. RESULTS: A total of 7,904 hepatectomies and 5,238 PDs were performed. More than 80% of all cases were performed at a designated center (DC) before standardization. This increased to >98% in the poststandardization era. Median volumes at DCs increased from 55 to 67 hepatectomies/year and from 22 to 50 PDs/year over time. In addition, 30-day mortality after hepatectomy was 2.6% before standardization and 2.3% after standardization (p = 0.9); 30-day mortality after PD was 3.6% before standardization and 2.4% after standardization (p = 0.1). Multivariable analyses revealed a significant difference in 90-day mortality following PD poststandardization (4.3% vs 6.3%; adjusted odds ratio, 0.7; p = 0.03). Median LOS was shorter for hepatectomy (6 days vs 8 days) and PD (9 days vs 14 days; p < 0.0001) after standardization. Immediate and late effects on mortality and LOS were likely attributable to secular trends, which predated standardization. CONCLUSIONS: Standardization was associated with a higher volume of hepatectomy and PDs with further concentration of care at DCs. Pre-existing quality initiatives may have attenuated the effect of standardization on quality outcomes. Our data highlight the merits of a multifaceted provincial system for enabling consistent access to high quality HPB care throughout a region of 15 million people over a 16-year period.


Subject(s)
Neoplasms , Postoperative Complications , Humans , Ontario , Cohort Studies , Retrospective Studies , Length of Stay , Reference Standards
15.
Med Teach ; : 1-8, 2023 Nov 17.
Article in English | MEDLINE | ID: mdl-37976390

ABSTRACT

BACKGROUND: In 2012, the World Federation for Medical Education (WFME) evaluated and formally recognized the first agency in its Recognition Programme (RP). The RP was developed to review accrediting authorities in response to a 2010 policy by the Educational Commission for Foreign Medical Graduates (ECFMG) to require international medical graduates (IMGs) seeking to practice in the U.S. to graduate from an appropriately accredited medical school. By the end of 2022, WFME had recognized 33 accrediting bodies and received applications from another 16, which accounted for over three-quarters of the world's medical schools. In 2023, WFME leadership changed hands, and the ECFMG will take its first steps toward implementing its Recognized Accreditation Policy. APPROACH: In this article, we look back at the genesis of the RP and describe its first decade as informed by the limited existing peer-reviewed literature and the emerging activities of accrediting agencies that could have significant implications for the quality of medical education internationally. CONCLUSIONS: The rapidly growing influence of WFME on medical education worldwide has largely occurred without significant awareness or scrutiny, and there is a need for the WFME to demonstrate greater transparency, proactively engage its stakeholders, and support research and evaluation.

17.
Teach Learn Med ; : 1-8, 2023 Sep 19.
Article in English | MEDLINE | ID: mdl-37724805

ABSTRACT

Issue: The World Federation for Medical Education (WFME) was established in 1972 and in the five decades that followed, has been the de facto global agency for medical education. Despite this apparently formidable remit, it has received little analysis in the academic literature. Evidence: In this article, we examine the historical context at the time WFME was established and summarize the key decisions it has taken in its history to date, highlighting particularly how it has adopted positions and programmes that have seemingly given precedence to the values and priorities of countries in the Global North. In doing so, we challenge the inevitability of the path that it has taken and consider other possible avenues that such a global agency in medical education could have taken, including to advocate for, and to develop policies that would support countries in the Global South. Implications: This article proposes a more democratic and equitable means by which a global organization for medical education might choose its priority areas, and a more inclusive method by which it could engage the medical education community worldwide. It concludes by hypothesizing about the future of global representation and priority-setting, and outlines a series of principles that could form the basis for a reimagined agency that would have the potential to become a force for empowerment and global justice in medical education.

18.
Int J Infect Dis ; 135: 63-66, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37567550

ABSTRACT

OBJECTIVES: To investigate the molecular characteristics of Hepatitis C Virus (HCV) detected in patients with chronic HCV infection in Jordan. METHODS: The study included 48 Jordanian treatment-naïve patients with active chronic HCV recruited from seven governorates. HCV genotype and the resistance-associated substitutions (RAS) profile were investigated by next-generation sequencing of the NS5B, NS5A, and NS3 regions of HCV. RESULTS: "Unusual genotype 4 subtypes" were detected in four (8.3%) patients (4n-n = 1, 4o-n = 2, 4v-n = 1); one patient (2.1%) was co-infected by genotypes 1b+4a. Overall prevalence of NS5A RASs was 38.3% (3% cutoff); genotype 4a showed the highest NS5A RAS prevalence (n = 11, 55.0%). Overall prevalence of NS3 RASs was 21.8% (7/32), all genotype 1a-infected patients. CONCLUSIONS: We report, for the first time in Jordanian patients with chronic HCV infection, the detection of unusual genotype 4 subtypes 4n, 4o, and 4v. Baseline RASs in NS5A are frequent, with complex RASs patterns in some of the unusual subtypes. Our data support the need for sequencing surveillance programs in sub-Saharan Africa, Asia, and the Middle East and North African region to monitor response to treatment in these subtypes and to facilitate the World Health Organization's 2030 elimination strategy.


Subject(s)
Hepatitis C, Chronic , Hepatitis C , Humans , Hepatitis C, Chronic/drug therapy , Hepatitis C, Chronic/epidemiology , Antiviral Agents/therapeutic use , Antiviral Agents/pharmacology , Jordan/epidemiology , Drug Resistance, Viral/genetics , Viral Nonstructural Proteins/genetics , Hepatitis C/drug therapy , Hepacivirus/genetics , Genotype
19.
Med ; 4(10): 668-686.e7, 2023 Oct 13.
Article in English | MEDLINE | ID: mdl-37572659

ABSTRACT

BACKGROUND: RH5 is a leading blood-stage candidate antigen for a Plasmodium falciparum vaccine; however, its safety and immunogenicity in malaria-endemic populations are unknown. METHODS: A phase 1b, single-center, dose-escalation, age-de-escalation, double-blind, randomized, controlled trial was conducted in Bagamoyo, Tanzania (NCT03435874). Between 12th April and 25th October 2018, 63 healthy adults (18-35 years), young children (1-6 years), and infants (6-11 months) received a priming dose of viral-vectored ChAd63 RH5 or rabies control vaccine. Sixty participants were boosted with modified vaccinia virus Ankara (MVA) RH5 or rabies control vaccine 8 weeks later and completed 6 months of follow-up post priming. Primary outcomes were the number of solicited and unsolicited adverse events post vaccination and the number of serious adverse events over the study period. Secondary outcomes included measures of the anti-RH5 immune response. FINDINGS: Vaccinations were well tolerated, with profiles comparable across groups. No serious adverse events were reported. Vaccination induced RH5-specific cellular and humoral responses. Higher anti-RH5 serum immunoglobulin G (IgG) responses were observed post boost in young children and infants compared to adults. Vaccine-induced antibodies showed growth inhibition activity (GIA) in vitro against P. falciparum blood-stage parasites; their highest levels were observed in infants. CONCLUSIONS: The ChAd63-MVA RH5 vaccine shows acceptable safety and reactogenicity and encouraging immunogenicity in children and infants residing in a malaria-endemic area. The levels of functional GIA observed in RH5-vaccinated infants are the highest reported to date following human vaccination. These data support onward clinical development of RH5-based blood-stage vaccines to protect against clinical malaria in young African infants. FUNDING: Medical Research Council, London, UK.


Subject(s)
Malaria Vaccines , Malaria, Falciparum , Adult , Child , Child, Preschool , Humans , Infant , Adenoviruses, Simian , Antibodies, Viral , Malaria Vaccines/adverse effects , Malaria Vaccines/immunology , Malaria, Falciparum/prevention & control , Rabies , Tanzania , Adolescent , Young Adult , Double-Blind Method
20.
Teach Learn Med ; : 1-12, 2023 Jul 04.
Article in English | MEDLINE | ID: mdl-37401838

ABSTRACT

Phenomenon: In 2012, the World Federation for Medical Education (WFME) established a recognition programme to evaluate medical school regulatory agencies across the world, in response to a new U.S. accreditation policy. Given the predominantly Western origins and Eastern impacts of the WFME programme, this article deconstructs tensions in the programme using postcolonial theory. Approach: Critical discourse analysis examines the intersections of language, knowledge, and power relations to highlight what can or cannot be said about a topic. We employed it to delineate the dominant discourse underpinning the WFME recognition programme. We drew on the theoretical devices of Edward Said, whose work is foundational in postcolonial thinking but has not been widely used in medical education scholarship to date. An archive of literature about the WFME recognition programme dating back to 2003, when WFME first released global standards for medical education, was analyzed. Findings: In the globalization of medical school regulation, the discourse of modernization can be conceptualized as a means of holding knowledge and power in the West, and enacting this power on those in the East, playing on fears of marginalization in the event of non-engagement. The discourse allows these practices to be presented in an honorable and heroic way. Insights: By uncovering the representation of the WFME recognition programme as being modern and modernizing, this article explores how such conceptualisations can close off debate and scrutiny, and proposes further examination of this programme through a lens that recognizes the inherent inequities and geopolitical power differentials that it operates within.

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