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1.
Front Public Health ; 12: 1343064, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38299075

RESUMO

Introduction: Although the burden of cervical cancer in Africa is highest, HPV vaccination coverage remains alarmingly low in this region. Providers' knowledge and recommendation are key drivers of HPV vaccination uptake. Yet, evidence about providers' knowledge and recommendation practices about the HPV vaccine against a backdrop of emerging vaccine hesitancy fueled by the COVID-19 pandemic is lacking in Africa. Methods: A cross-sectional study was conducted in 2021-2022 among healthcare providers involved in cervical cancer prevention activities in Africa. They were invited to report prior training, the availability of the HPV vaccine in their practice, whether they recommended the HPV vaccine, and, if not, the reasons for not recommending it. Their knowledge about the HPV vaccine was assessed through self-reporting (perceived knowledge) and with three pre-tested knowledge questions (measured knowledge). Results: Of the 153 providers from 23 African countries who responded to the survey (mean age: 38.5 years, SD: 10.1), 75 (54.0%) were female and 97 (63.4%) were based In countries with national HPV immunization programs. Overall, 57 (43.8%) reported having received prior training on HPV vaccine education/counseling, and 40 (37.4%) indicated that the HPV vaccine was available at the facility where they work. Most respondents (109, 83.2%) reported recommending the HPV vaccine in their practice. Vaccine unavailability (57.1%), lack of effective communication tools and informational material (28.6%), and need for adequate training (28.6%) were the most commonly reported reasons for not recommending the HPV vaccine. While 63 providers (52.9%) reported that their knowledge about HPV vaccination was adequate for their practice, only 9.9% responded correctly to the 3 knowledge questions. Conclusion: To increase HPV vaccination coverage and counter misinformation about this vaccine in Africa, adequate training of providers and culturally appropriate educational materials are needed to improve their knowledge of the HPV vaccine and to facilitate effective communication with their patients and the community.


Assuntos
COVID-19 , Infecções por Papillomavirus , Vacinas contra Papillomavirus , Neoplasias do Colo do Útero , Humanos , Feminino , Adulto , Masculino , Estudos Transversais , Neoplasias do Colo do Útero/prevenção & controle , Infecções por Papillomavirus/prevenção & controle , Pandemias , Vacinação/psicologia , Conhecimentos, Atitudes e Prática em Saúde , COVID-19/prevenção & controle , Pessoal de Saúde , África , Vacinas contra Papillomavirus/uso terapêutico
2.
Cancer Immunol Res ; 11(6): 720-731, 2023 06 02.
Artigo em Inglês | MEDLINE | ID: mdl-37058582

RESUMO

The low overall survival rates of patients with breast cancer in sub-Saharan Africa (SSA) are driven by regionally differing tumor biology, advanced tumor stages at diagnosis, and limited access to therapy. However, it is not known whether regional differences in the composition of the tumor microenvironment (TME) exist and affect patients' prognosis. In this international, multicentre cohort study, 1,237 formalin-fixed, paraffin-embedded breast cancer samples, including samples of the "African Breast Cancer-Disparities in Outcomes (ABC-DO) Study," were analyzed. The immune cell phenotypes, their spatial distribution in the TME, and immune escape mechanisms of breast cancer samples from SSA and Germany (n = 117) were investigated using histomorphology, conventional and multiplex IHC, and RNA expression analysis. The data revealed no regional differences in the number of tumor-infiltrating lymphocytes (TIL) in the 1,237 SSA breast cancer samples, while the distribution of TILs in different breast cancer IHC subtypes showed regional diversity, particularly when compared with German samples. Higher TIL densities were associated with better survival in the SSA cohort (n = 400), but regional differences concerning the predictive value of TILs existed. High numbers of CD163+ macrophages and CD3+CD8+ T cells accompanied by reduced cytotoxicity, altered IL10 and IFNγ levels and downregulation of MHC class I components were predominantly detected in breast cancer samples from Western SSA. Features of nonimmunogenic breast cancer phenotypes were associated with reduced patient survival (n = 131). We therefore conclude that regional diversity in the distribution of breast cancer subtypes, TME composition, and immune escape mechanisms should be considered for therapy decisions in SSA and the design of personalized therapies. See related Spotlight by Bergin et al., p. 705.


Assuntos
Neoplasias , Microambiente Tumoral , Prognóstico , Estudos de Coortes , Linfócitos do Interstício Tumoral , Macrófagos , Neoplasias/patologia
4.
Am J Clin Pathol ; 157(2): 279-285, 2022 Feb 03.
Artigo em Inglês | MEDLINE | ID: mdl-34542557

RESUMO

OBJECTIVES: In response to requests for training in cancer pathology, two virtual training courses were organized: one in English for participants in Nigeria and another in French for participants in Francophone Africa. Each course had weekly 90-minute sessions covering essential topics in cancer pathology led by global experts. METHODS: Two research questions were investigated for both courses: (1) did the participants improve their knowledge of the topics covered during the course, and (2) did the course participants appreciate the virtual training format? RESULTS: The Nigeria course enrolled 85 participants from 26 Nigerian states; the Francophone Africa course enrolled 425 participants from 18 African countries. In the pre-post technical assessment, participants increased their scores on average by 3.4% (P > .05) in the Nigeria course and by 13.1% (P < .001) in the Francophone Africa course. On the postcourse survey, 95.8% of Nigerian respondents and 96.1% of Francophone African respondents reported being satisfied or very satisfied with the virtual format. CONCLUSIONS: Virtual training is a promising tool to improve cancer diagnosis in Africa, as the experience of the courses illustrates that participants appreciate the virtual format. Continued training is required to reinforce skills and enable participants to appropriately apply new knowledge to their daily practice.


Assuntos
Neoplasias , África , Humanos , Neoplasias/diagnóstico , Inquéritos e Questionários
5.
Clin Lab Med ; 38(1): 37-51, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29412884

RESUMO

Quality patient care requires correct and timely evidence-based diagnoses. Pathology and laboratory medicine training varies significantly across the continent, but is inadequate to serve the needs of the population. This article summarizes the current state of pathology workforce and training in sub-Saharan Africa; discusses challenges to recruitment and retention; and outlines the necessary elements for training and sustaining a robust workforce in pathology and laboratory medicine. The authors provide several case studies of institutions around the continent that include expansion of existing programs, a de novo program, South-South collaborations, and skill building for the existing workforce.


Assuntos
Educação Médica Continuada , Saúde Global , Patologistas/educação , Patologia/educação , Acreditação , África , Humanos , Patologistas/economia , Patologistas/estatística & dados numéricos
6.
Case Rep Pathol ; 2016: 4075162, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27313932

RESUMO

Ovarian filariasis is an exceptional disease and displays a major diagnostic problem even in endemic areas. We reported the case of a 19-year-old patient who had ovarian cyst which was revealed by chronic pelvic pain. The histological examination of oophorectomy specimen led to the Wuchereria bancrofti filariasis of the ovary. The anatomopathologic examination is required for the diagnosis of this disease.

7.
Bull Cancer ; 100(2): 119-25, 2013 Feb 01.
Artigo em Francês | MEDLINE | ID: mdl-23406565

RESUMO

The cancerous disease is a real pain in developed countries due to the ageing of the population. According to the World Report Cancer in 2000, cancer tends to be a major problem of public health in the developing nations. This study research aimed at describing the epidemiological features of cancers in Cote d'Ivoire. It is a 26-year retrospective and descriptive study focusing on all cancers confirmed histologically by using the data from the registers of Anatomic Pathology laboratory of Abidjan teaching hospitals. The parameters of the study were frequency, age, sex, site and histological type. We obtained 12,841 cancers within patients aged from 2 months to 107 years old along with 51.26-year median age and 0.9 as sex-ratio. The most important cancer locations are cervix (17.41%) followed by skin (15.81%), prostate (7.73%), breast (6.88%), and stomach (6.09%). With women, the median age was 49.23 years, and the most common cancers were cervical cancer (33.25%) followed by breast cancer (12.44%) and skin cancer (10.50%). With men, the median age was 53.95 years, and the most frequent cancers were skin cancer (21.29%) followed by prostate cancer (15.69%) and stomach cancer (8.71%). Burkitt lymphoma (33.95%), retinoblastoma (10.92%) and nephroblastoma (5.88%) are the most important cancers in children. Cancers are frequent in Cote d'Ivoire. Cervical cancer, skin cancer, and prostate are updated problems with a worse prognosis. Therefore, the screening and the early diagnosis remain the best conditions to improve the prognosis of cancer.


Assuntos
Neoplasias/epidemiologia , Adolescente , Adulto , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Côte d'Ivoire/epidemiologia , Feminino , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Neoplasias/classificação , Estudos Retrospectivos , Distribuição por Sexo , Adulto Jovem
8.
Lancet ; 377(9771): 1113-21, 2011 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-21074256

RESUMO

Small numbers of graduates from few medical schools, and emigration of graduates to other countries, contribute to low physician presence in sub-Saharan Africa. The Sub-Saharan African Medical School Study examined the challenges, innovations, and emerging trends in medical education in the region. We identified 168 medical schools; of the 146 surveyed, 105 (72%) responded. Findings from the study showed that countries are prioritising medical education scale-up as part of health-system strengthening, and we identified many innovations in premedical preparation, team-based education, and creative use of scarce research support. The study also drew attention to ubiquitous faculty shortages in basic and clinical sciences, weak physical infrastructure, and little use of external accreditation. Patterns recorded include the growth of private medical schools, community-based education, and international partnerships, and the benefit of research for faculty development. Ten recommendations provide guidance for efforts to strengthen medical education in sub-Saharan Africa.


Assuntos
Educação de Graduação em Medicina/organização & administração , Faculdades de Medicina , Acreditação , África Subsaariana , Comportamento Cooperativo , Currículo , Emigração e Imigração , Equipamentos e Provisões , Docentes de Medicina/provisão & distribuição , Governo , Pessoal de Saúde , Humanos , Cooperação Internacional , Avaliação das Necessidades , Setor Privado , Controle de Qualidade , Pesquisa , Salários e Benefícios , Faculdades de Medicina/economia , Ensino
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