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Drown L, Osei M, Thapa A, Boudreaux C, Archer N, Bukhman G, Adler AJ. Models of care for sickle cell disease in low-income and lower-middle-income countries: a scoping review. Lancet Haematol 2024; 11:e299-e308. [PMID: 38432241 DOI: 10.1016/s2352-3026(24)00007-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 03/05/2024]
Abstract
Sickle cell disease has a growing global burden falling primarily on low-income countries (LICs) and lower-middle-income countries (LMICs) where comprehensive care is often insufficient, particularly in rural areas. Integrated care models might be beneficial for improving access to care in areas with human resource and infrastructure constraints. As part of the Centre for Integration Science's ongoing efforts to define, systematise, and implement integrated care delivery models for non-communicable diseases (NCDs), this Review explores models of care for sickle cell disease in LICs and LMICs. We identified 99 models from 136 studies, primarily done in tertiary, urban facilities in LMICs. Except for two models of integrated care for concurrent treatment of other conditions, sickle cell disease care was mostly provided in specialised clinics, which are low in number and accessibility. The scarcity of published evidence of models of care for sickle cell disease and integrated care in rural settings of LICs and LMICs shows a need to implement more integrated models to improve access, particularly in rural areas. PEN-Plus, a model of decentralised, integrated care for severe chronic non-communicable diseases, provides an approach to service integration that could fill gaps in access to comprehensive sickle cell disease care in LICs and LMICs.
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Affiliation(s)
- Laura Drown
- Center for Integration Science in Global Health Equity, Division of Global Health Equity, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Miriam Osei
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Ada Thapa
- Center for Integration Science in Global Health Equity, Division of Global Health Equity, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Chantelle Boudreaux
- Center for Integration Science in Global Health Equity, Division of Global Health Equity, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Natasha Archer
- Harvard Medical School, Harvard University, Boston, MA, USA; Dana Farber/Boston Children's Cancer and Blood Disorders Center, Boston, MA, USA
| | - Gene Bukhman
- Center for Integration Science in Global Health Equity, Division of Global Health Equity, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA; Program in Global Noncommunicable Disease and Social Change, Department of Global Health and Social Medicine, Harvard Medical School, Harvard University, Boston, MA, USA
| | - Alma J Adler
- Center for Integration Science in Global Health Equity, Division of Global Health Equity, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA.
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Mendes VLDDC, Risso PA, Santos MPAD. Dental caries in the permanent dentition and health-related quality of life among children and adolescents with sickle cell disease. CIENCIA & SAUDE COLETIVA 2024; 29:e06752023. [PMID: 38451648 DOI: 10.1590/1413-81232024293.06752023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 02/08/2024] [Indexed: 03/08/2024] Open
Abstract
The aim was to associate living, health and oral health conditions with the quality of life (QL) of children and adolescents (CA) with sickle cell disease (SCD). Of the 120 eligible users of a public hematological service, 106 CA with SCD from 6 to 18 years of age, and their caregivers, answered semi-structured questions about socio-demographic, health and oral health conditions. For QL, we used the validated instrument PedsQLSCD™. The oral clinical examination occurred according to the guidelines of WHO and SB Brazil 2010. The majority of CA were non-white people (88%), mean age of 10.4 (±2.9) years, family income of up to two monthly minimum wages, for 03 to 05 members, with diagnosis of sickle cell anemia by neonatal screening, hospitalizations were due allergic crises, polypharmacy and dental caries (51%) were present. "About the Impact of My Pain" was the best-fit model for the QLSCD (adjusted R²=56%; AIC=28.67; p=0.04). Dental caries in permanent dentition worsened the QLSCD (OR=0.53; IC95%=0.35-0.78; p<0.05) and was associated with the type of school, car ownership, number of family members, of complications and of the medications. To overcome this scenario, programmatic actions are required, and implementation of public policies specifically directed towards these groups.
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Affiliation(s)
| | - Patrícia A Risso
- Faculdade de Odontologia, Universidade Federal do Rio de Janeiro. Rio de Janeiro RJ Brasil
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Pizzo A, Porter JS, Carroll Y, Burcheri A, Smeltzer MP, Beestrum M, Nwosu C, Badawy S, Hankins JS, Klesges LM, Alberts NM. Provider prescription of hydroxyurea in youth and adults with sickle cell disease: A review of prescription barriers and facilitators. Br J Haematol 2023; 203:712-721. [PMID: 37691131 PMCID: PMC11057211 DOI: 10.1111/bjh.19099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/05/2023] [Accepted: 08/28/2023] [Indexed: 09/12/2023]
Abstract
Sickle cell disease (SCD) is an inherited red blood cell disorder associated with frequent painful events and organ damage. Hydroxyurea (HU) is the recommended evidence-based treatment of SCD. However, among patients eligible for HU, prescription rates are low. Utilizing a scoping review approach, we summarized and synthesized relevant findings regarding provider barriers and facilitators to the prescription of HU in youth and adults with SCD and provided suggestions for future implementation strategies to improve prescription rates. Relevant databases were searched using specified search terms. Articles reporting provider barriers and/or facilitators to prescribing HU were included. A total of 10 studies met the inclusion criteria. Common barriers to the prescription of HU identified by providers included: doubts around patients' adherence to HU and their engaging in required testing, concerns about side effects, lack of knowledge, cost and patient concerns about side effects. Facilitators to the prescription of HU included beliefs in the effectiveness of HU, provider demographics and knowledge. Findings suggest significant provider biases exist, particularly in the form of negative perceptions towards patients' ability to adhere to taking HU and engaging in the required follow-up. Improving provider knowledge and attitudes towards HU and SCD may help improve low prescription rates.
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Affiliation(s)
- Alex Pizzo
- Department of Psychology, Concordia University, Montreal,
QC
| | - Jerlym S. Porter
- Department of Psychology and Biobehavioral Sciences, St.
Jude Children’s Research Hospital, Memphis, TN
| | - Yvonne Carroll
- Department of Hematology, St. Jude Children’s
Research Hospital, Memphis, TN
| | - Adam Burcheri
- Department of Psychology, Concordia University, Montreal,
QC
| | - Matthew P. Smeltzer
- Division of Epidemiology, Biostatistics, and Environmental
Health, University of Memphis, Memphis, TN
| | - Molly Beestrum
- Department of Pediatrics, Northwestern University Feinberg
School of Medicine, Chicago, IL
| | - Chinonyelum Nwosu
- Department of Hematology, St. Jude Children’s
Research Hospital, Memphis, TN
| | - Sherif Badawy
- Department of Pediatrics, Northwestern University Feinberg
School of Medicine, Chicago, IL
- Division of Hematology, Oncology, and Stem Cell Transplant,
Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL
| | - Jane S. Hankins
- Department of Hematology, St. Jude Children’s
Research Hospital, Memphis, TN
- Global Pediatric Medicine, St. Jude Children’s
Research Hospital, Memphis, TN
| | - Lisa M. Klesges
- Division of Public Health Sciences, Department of Surgery,
Washington University Medical School, St. Louis, MO
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Inusa BP, Atoyebi W, Andemariam B, Hourani JN, Omert L. Global burden of transfusion in sickle cell disease. Transfus Apher Sci 2023; 62:103764. [PMID: 37541800 DOI: 10.1016/j.transci.2023.103764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/14/2023] [Accepted: 07/16/2023] [Indexed: 08/06/2023]
Abstract
Sickle cell disease (SCD) is the most common hereditary hemoglobinopathy. The underlying pathophysiology of the red blood cell (RBC) leads to pan-systemic complications which manifest at an early age. While curative and disease-modifying treatments exist for SCD, a key intervention in the management and treatment of SCD is RBC transfusion, which can alleviate or prevent many complications. SCD patients often require chronic RBC transfusion therapy which can result in complications, such as iron overload, alloimmunization and infection. In low- and middle-income countries (LMICs), SCD patients lack appropriate access to healthcare such as newborn screening, health education, prophylaxis for infection, and treatments to reduce both mortality and SCD-related adverse effects. Poor access to RBCs for transfusion, coupled with donated blood not meeting safety standards set by the World Health Organization, presents a significant barrier for patients requiring chronic transfusions in LMICs. Unmet needs associated with blood collection, blood component processing and recipient matching all pose a serious problem in many LMICs, although this varies depending on geographic location, political organizations and economy. This review aims to provide an overview of the global burden of SCD, focusing on the availability of current treatments and the burden of chronic RBC transfusions in patients with SCD.
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Affiliation(s)
- Baba Pd Inusa
- Guy's and Saint Thomas' NHS Foundation Trust, London, UK.
| | | | - Biree Andemariam
- New England Sickle Cell Institute, University of Connecticut Health, Farmington, CT, USA
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Ally M, Balandya E. Current challenges and new approaches to implementing optimal management of sickle cell disease in sub-Saharan Africa. Semin Hematol 2023; 60:192-199. [PMID: 37730472 PMCID: PMC10909340 DOI: 10.1053/j.seminhematol.2023.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 08/01/2023] [Accepted: 08/21/2023] [Indexed: 09/22/2023]
Abstract
Sickle cell disease (SCD) is the most common life-threatening monogenic disorder in the world. The disease is highly prevalent in malaria endemic areas with over 75% of patients residing in Sub-Saharan Africa (SSA). It is estimated that, without proper care, up to 90% of children with SCD will not celebrate their fifth birthday. Early identification and enrolment into comprehensive care has been shown to reduce the morbidity and mortality related with SCD complications. However, due to resource constraints, the SSA is yet to implement universal newborn screening programs for SCD. Furthermore, care for patients with SCD in the region is hampered by the shortage of qualified healthcare workers, lack of guidelines for the clinical management of SCD, limited infrastructure for inpatient and outpatient care, and limited access to blood and disease modifying drugs such as Hydroxyurea which contribute to poor clinical outcomes. Curative options such as bone marrow transplant and gene therapy are expensive and not available in many SSA countries. In addressing these challenges, various initiatives are ongoing in SSA which aim to enhance awareness on SCD, improve patient identification and retention to care, harmonize the standards of care for SCD, improve the skills of healthcare workers and conduct research on pertinent areas in SCD in the SSA context. Fortifying these measures is paramount to improving the outcomes of SCD in SSA.
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Affiliation(s)
- Mwashungi Ally
- Sickle Pan African Research Consortium, Tanzania site Sickle Cell Program Department of Hematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences Dar es Salaam Tanzania.
| | - Emmanuel Balandya
- Sickle Pan African Research Consortium, Tanzania site Sickle Cell Program Department of Hematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences Dar es Salaam Tanzania
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Ambrose EE, Kidenya BR, Charles M, Ndunguru J, Jonathan A, Makani J, Minja IK, Ruggajo P, Balandya E. Outcomes of Hydroxyurea Accessed via Various Means and Barriers Affecting Its Usage Among Children with Sickle Cell Anaemia in North-Western Tanzania. J Blood Med 2023; 14:37-47. [PMID: 36712580 PMCID: PMC9875573 DOI: 10.2147/jbm.s380901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 12/05/2022] [Indexed: 01/22/2023] Open
Abstract
Purpose To assess clinical and haematological outcomes of Hydroxyurea accessed via various access means and uncover the barriers to its utilization in children with Sickle cell anaemia (SCA), North-western Tanzania. Patients and Methods A retrospective study was conducted between October 2020 and April 2021 at Bugando Medical Centre (BMC) through review of medical files to compare the clinical and haematological outcomes among children with SCA at baseline and followed up retrospectively for at least one year of hydroxyurea utilization, accessed via cash, insurance and projects. Subsequently, a cross-sectional survey was conducted among parents and caregivers to ascertain the barriers to access of hydroxyurea via the various means. The p-values <0.05 were considered statistically significant. Results We identified 87 children with SCA who were on hydroxyurea for at least one year. The median age at baseline (before hydroxyurea) was 99 [78-151] months, and 52/87 (59.8%) were male. Compared to baseline, there was a significant reduction in proportion of patients reporting vaso-occlusive crisis, admissions and blood transfusions, a significant increase in Haemoglobin and mean corpuscular volume, conversely a significant reduction in absolute neutrophil and reticulocytes to both insurance and project participants. There was no significant change in most of these parameters among patients who accessed hydroxyurea via cash. Further, a total of 24/87 (27.6%) participants reported different barriers to access of hydroxyurea, where 10/24 (41.7%) reported hydroxyurea to be very expensive, 10/24 (41.7%) reported insurance challenges, and 4/21 (16.6%) reported unavailability of the drug. Conclusion The paediatric patients utilizing hydroxyurea accessed via insurance and projects, but not cash, experienced significant improvement in the clinical and haematological outcomes. Several barriers for access to hydroxyurea were observed which appeared to impact these outcomes. These findings call for concerted efforts to improve the sustainable access to hydroxyurea among all patients with SCA.
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Affiliation(s)
- Emmanuela E Ambrose
- Department of Paediatrics and Child Health, Catholic University of Health and Allied Sciences, Mwanza, Tanzania,Correspondence: Emmanuela E Ambrose, Department of Paediatrics and Child Health, Catholic University of Health and Allied Sciences, P.O. Box 1464, Mwanza, Tanzania, Tel +255789733833, Fax +255282500799, Email
| | - Benson R Kidenya
- Department of Biochemistry and Molecular Biology, Catholic University of Health and Allied Sciences, Mwanza, Tanzania
| | - Mwesige Charles
- Department of Laboratory Services, Bugando Medical Centre, Mwanza, Tanzania
| | - Joyce Ndunguru
- Department of Haematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Agnes Jonathan
- Department of Haematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Julie Makani
- Department of Haematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Irene K Minja
- Department of Haematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania,Department of Restorative Dentistry, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Paschal Ruggajo
- Department of Haematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania,Department of Internal Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Emmanuel Balandya
- Department of Haematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania,Department of Physiology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
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7
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Determinants of hydroxyurea use among doctors, nurses and sickle cell disease patients in Nigeria. PLoS One 2022; 17:e0276639. [DOI: 10.1371/journal.pone.0276639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 10/10/2022] [Indexed: 11/12/2022] Open
Abstract
Background
Hydroxyurea (HU) is an evidence-based therapy that is currently the most effective drug for sickle cell disease (SCD). HU is widely used in high-income countries with consequent reduction of morbidity and mortality. In Nigeria, HU is prescribed by physicians while nurses are mainly involved in counseling the patients to ensure adherence. The extent of utilization and the determinant factors have not been sufficiently evaluated in Nigeria.
Objective
To assess the frequency of use of HU and factors affecting utilization among healthcare providers, patients, and caregivers for SCD.
Methods
A questionnaire was administered online and in- person to assess the frequency of HU use and the factors that promote and limit its use. The data were analyzed by descriptive statistics using IBM SPSS software version 23 and the result was presented in frequency tables and percentages.
Result
A total of 137 physicians, 137 nurses, and 237 patients/caregivers responded to the survey. The rate of prescription of HU by doctors in the past 6 months was 64 (46.7%), 43 (31.4%) nurses provided counseling and 36 (15.6%) patients were on HU. Among doctors, adequate knowledge (91.3%), clinical benefits and safety (94.8%), and inclusion of HU in management guidelines (86.9%) were motivators for prescribing it while inadequate knowledge (60.9%) and unawareness of treatment guidelines (68.6%) constituted barriers. Among nurses, reduction of crisis (91.6%) and safety (64.8%) were the major motivators while barriers were high cost (79.1%) and intensive monitoring (63.1%) of HU treatment. Among the patients, the major motivator was the reduction of crises (80.3%) while poor knowledge (93.2%), high cost of the drug (92.2%) while monitoring (91.2%), non-availability (87.7%) and side effects (83.9%) were the major barriers for the utilization of HU.
Conclusion
HU prescription and utilization are still poor among healthcare providers and patients. Inadequate knowledge, non-availability and high cost of HU as well as unawareness of treatment guidelines constitute major barriers to prescription and utilization.
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Chianumba RI, Ofakunrin AOD, Morrice J, Olanrewaju O, Oniyangi O, Kuliya-Gwarzo A, Nnebe-Agumadu U, Isa HA, Nnodu OE. Outcome of Hydroxyurea Use in SCD and Evaluation of Patients’ Perception and Experience in Nigeria. Front Genet 2022; 13:826132. [PMID: 35401653 PMCID: PMC8987287 DOI: 10.3389/fgene.2022.826132] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/02/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction: Hydroxyurea (HU) has been shown to be beneficial in the management of sickle cell disease (SCD) as it improves treatment outcomes. However, despite the benefits of HU, its uptake among SCD patients in Nigeria remains low. Objective: This study aimed to assess the perception and experience of patients with SCD in Nigeria who are using or had used HU, thereby informing and promoting its use. Methodology: A multi-centre, cross-sectional study was conducted among 378 SCD patients aged 1–53 years who have enrolled on Sickle Pan African Research Consortium (SPARCO) registry as HU users. The SPARCO project was funded by the National Institutes of Health (NIH) to establish a sickle cell disease (SCD) registry, strengthen skills and plan research in three African countries. The Nigerian SPARCO registry had 6453 SCD patients at the time of this report with <15% of this population on HU. Data on sociodemographics, perception and experience about HU use were obtained and analysed using descriptive statistics. Findings: Out of the 378 participants, 339 (89.7%) were using HU while 39 (10.3%) had stopped using HU at the time of the study. 281 (74.3%) found HU expensive, while 194 (51.3%) reported none to minimal side effects while using HU. Among patients that stopped HU, cost (59%) and availability (51.3%) were the commonest reasons for discontinuing the drug. Furthermore, 347 (92.5%) had fewer pain crises, 173 (84.8%) had a fewer need for blood transfusion, 145 (86.3%) had improved PCV and 318 (84.6%) had fewer hospital admissions. Finally, the study also showed that 322 (85.2%) respondents would recommend the drug to other patients, whereas 14 respondents (3.7%) would not. Mean corpuscular volume (MCV) and fetal hemoglobin (HbF) levels were not collected in this study and may have improved findings. Conclusion: This study showed that the majority of the SCD patients had good perception and experience with the use of HU while a few had to stop the medication mostly on account of cost and availability. Patients’ based advocacy could be leveraged to improve HU uptake while more efforts are needed to ensure that it is readily available and affordable.
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Affiliation(s)
- Reuben Ikechukwu Chianumba
- Centre of Excellence for Sickle Cell Disease Research and Training, University of Abuja, Abuja, Nigeria
- *Correspondence: Reuben Ikechukwu Chianumba,
| | | | - Jack Morrice
- Division of Human Genetics, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | | | | | - Aisha Kuliya-Gwarzo
- Bayero University Kano/Aminu Kano University Teaching Hospital, Kano, Nigeria
| | - Uche Nnebe-Agumadu
- Department of Paediatrics, University of Abuja Teaching Hospital, Gwagwalada, Nigeria
| | - Hezekiah Alkali Isa
- Centre of Excellence for Sickle Cell Disease Research and Training, University of Abuja, Abuja, Nigeria
- Department of Haematology and Blood Transfusion, College of Health Sciences, University of Abuja, Abuja, Nigeria
| | - Obiageli Eunice Nnodu
- Centre of Excellence for Sickle Cell Disease Research and Training, University of Abuja, Abuja, Nigeria
- Department of Haematology and Blood Transfusion, College of Health Sciences, University of Abuja, Abuja, Nigeria
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Barriers and Facilitators of Use of Hydroxyurea among Children with Sickle Cell Disease: Experiences of Stakeholders in Tanzania. HEMATO 2021. [DOI: 10.3390/hemato2040048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Factors contributing to low use of HU among SCD patients exist in high-income countries. The latter leaves a drift of literature on factors for low utilization of HU in developing countries. This study aimed to explore the factors influencing the use of HU in the management of SCD in Tanzania. A qualitative study was employed to interview purposively selected participants for this study. The in-depth interviews were conducted with 11 parents of children with SCD, four medical doctors working at sickle cell clinics, and two representatives of the national health insurance fund (NHIF). Interviews were audio-recorded, transcribed, and thematically analysed. Barriers identified were misconception of parents on SCD, financial constraints, regulatory restrictions, worries and fears of medical doctors on the acceptability of HU, shortages of laboratory equipment and consumables, and limited availability of HU. Adequate knowledge of the parents and medical doctors on SCD and HU and opportunities for HU accessibility were the facilitators identified. The utilization of HU by the individual with SCD is affected by several factors, from individual to policy level. Nevertheless, parents of children with SCD and medical doctors working in sickle cell clinics demonstrated good knowledge of the diseases and HU.
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Tumwine JK. Editorial: Infectious diseases and NCDs persist despite concerted effort. Afr Health Sci 2021; 21:i-v. [PMID: 34795757 PMCID: PMC8568243 DOI: 10.4314/ahs.v21i2.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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