RESUMEN
The SARS-CoV-2 epidemic in southern Africa has been characterized by three distinct waves. The first was associated with a mix of SARS-CoV-2 lineages, while the second and third waves were driven by the Beta (B.1.351) and Delta (B.1.617.2) variants, respectively1-3. In November 2021, genomic surveillance teams in South Africa and Botswana detected a new SARS-CoV-2 variant associated with a rapid resurgence of infections in Gauteng province, South Africa. Within three days of the first genome being uploaded, it was designated a variant of concern (Omicron, B.1.1.529) by the World Health Organization and, within three weeks, had been identified in 87 countries. The Omicron variant is exceptional for carrying over 30 mutations in the spike glycoprotein, which are predicted to influence antibody neutralization and spike function4. Here we describe the genomic profile and early transmission dynamics of Omicron, highlighting the rapid spread in regions with high levels of population immunity.
Asunto(s)
COVID-19/epidemiología , COVID-19/virología , Evasión Inmune , SARS-CoV-2/aislamiento & purificación , Anticuerpos Neutralizantes/inmunología , Botswana/epidemiología , COVID-19/inmunología , COVID-19/transmisión , Humanos , Modelos Moleculares , Mutación , Filogenia , Recombinación Genética , SARS-CoV-2/clasificación , SARS-CoV-2/inmunología , Sudáfrica/epidemiología , Glicoproteína de la Espiga del Coronavirus/genética , Glicoproteína de la Espiga del Coronavirus/inmunologíaRESUMEN
BACKGROUND: Cryptococcal meningitis (CM) causes substantial mortality in African countries with a high prevalence of human immunodeficiency virus (HIV), despite advances in disease management and increasing antiretroviral therapy (ART) coverage. Reliable diagnosis of CM is cheap and more accessible than other indicators of advanced HIV disease burden such as CD4 testing or investigation for disseminated tuberculosis; therefore, monitoring CM incidence has the potential to serve as a valuable metric of HIV programmatic success. METHODS: Botswana national meningitis surveillance data from 2015 to 2022 were obtained from electronic health records. All electronic laboratory records from cerebrospinal fluid samples analyzed within government healthcare facilities in Botswana were extracted from a central online repository. Adjustments for missing data were made through triangulation with prospective cohort study datasets. CM case frequency was enumerated using a case definition and incidence calculated using national census data. RESULTS: A total of 1744 episodes of CM were identified; incidence declined from 15.0 (95% confidence interval [CI], 13.4-16.7) cases/100 000 person-years in 2015 to 7.4 (95% CI, 6.4-8.6) cases/100 000 person-years in 2022. However, the rate of decline slowed following the introduction of universal treatment in 2016. The highest incidence was observed in men and individuals aged 40-44 years. The proportion of cases diagnosed through cryptococcal antigen testing increased from 35.5% to 86.3%. CONCLUSIONS: CM incidence has decreased in Botswana following expansion of ART coverage but persists at a stubbornly high incidence. Most cases are now diagnosed through the cheap and easy-to-use cryptococcal antigen test, highlighting the potential of using CM as key metric of program success in the Treat All era.
Asunto(s)
Infecciones por VIH , Meningitis Criptocócica , Humanos , Meningitis Criptocócica/tratamiento farmacológico , Meningitis Criptocócica/epidemiología , Meningitis Criptocócica/diagnóstico , Botswana/epidemiología , Masculino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Adulto , Femenino , Incidencia , Persona de Mediana Edad , Adulto Joven , Adolescente , Estudios Prospectivos , Niño , Infecciones Oportunistas Relacionadas con el SIDA/epidemiología , Infecciones Oportunistas Relacionadas con el SIDA/tratamiento farmacológico , Infecciones Oportunistas Relacionadas con el SIDA/diagnóstico , Infecciones Oportunistas Relacionadas con el SIDA/microbiología , Preescolar , LactanteRESUMEN
BACKGROUND: Cervical cancer associated with human papillomavirus has the highest cancer incidence and mortality for women in Botswana because of a high HIV prevalence and limited screening. This study investigates the significance of HIV on the overall survival (OS) of patients with locally advanced cervical cancer by various treatment categories (curative chemoradiation, definitive radiation [RT] alone, or palliative RT alone). METHODS: This study included patients diagnosed with cervical cancer between 2013 and 2020, prospectively enrolled in the Botswana Prospective Cancer Cohort. OS based on HIV status and completion of planned treatment regimen was estimated by the Kaplan-Meier method. Comparisons of 2-year OS by HIV status was performed by the log-rank test, univariate and multivariable Cox analyses adjusting for cancer stage, RT dose, number of chemotherapy cycles, and baseline hemoglobin levels. RESULTS: Of 1131 patients diagnosed with stage IB-IVB cervical cancer, 69.8% were women living with HIV (n = 789). For patients receiving curative chemoradiation, HIV status was not significantly associated with OS in unadjusted (p = .987) and adjusted (p = .578) analyses. For RT only treatment and definitive (high-dose) RT alone, HIV status was significantly associated with OS in unadjusted analysis (HR = 1.77, p = .002; HR = 1.95, p = .014), but not in adjusted analysis (p = .227, p = .73). For patients receiving palliative (low-dose) RT, HIV status was not associated with OS in unadjusted (p = .835) or adjusted analysis (p = .359). CONCLUSIONS: In Botswana, a resource-limited setting, HIV status had no significant effect on 2-year OS in patients with cervical cancer with well-managed HIV receiving chemoradiation, RT alone, or palliative RT. This demonstrates that patients living with HIV receiving antiretroviral treatment can receive clinically appropriate treatment with no evidence that HIV may lead to poorer outcomes.
Asunto(s)
Quimioradioterapia , Infecciones por VIH , Cuidados Paliativos , Neoplasias del Cuello Uterino , Humanos , Femenino , Neoplasias del Cuello Uterino/terapia , Neoplasias del Cuello Uterino/virología , Neoplasias del Cuello Uterino/mortalidad , Neoplasias del Cuello Uterino/patología , Botswana/epidemiología , Persona de Mediana Edad , Adulto , Cuidados Paliativos/métodos , Infecciones por VIH/complicaciones , Estudios Prospectivos , Anciano , Estadificación de NeoplasiasRESUMEN
BACKGROUND: Partner notification and treatment for sexually transmitted infections are critical to prevent reinfection and reduce transmission. However, partner treatment rates are low globally. Expedited partner therapy (EPT), in which the patient delivers treatment directly to their partner, may result in more partners treated. We assessed partner notification and treatment outcomes among pregnant women in Gaborone, Botswana, including EPT intent, uptake, and effectiveness. METHODS: The Maduo study was a cluster-controlled trial evaluating the effect of antenatal Chlamydia trachomatis and Neisseria gonorrhoeae infection screening in pregnant women. The intervention arm received screening at first antenatal care (ANC), third-trimester, and postnatal care visits. The standard-of-care arm received screening postnatally. Participants screening positive were given options for partner treatment: contact slips, in-clinic treatment, or EPT. Self-reported partner notification and treatment outcomes were assessed at test-of-cure visit. RESULTS: Of 51 women who screened positive for C. trachomatis / N. gonorrhoeae at first ANC and returned for test of cure, 100% reported notifying their partner and 48 (94.1%) reported their partner received treatment. At third trimester 100% (n = 5), reported partners were treated. Before testing, EPT intent was lower than EPT uptake at all time points (first ANC: 17.9% vs. 80.4%; third-trimester: 57.1% vs. 71.4%; postnatal care: 0% vs. 80.0%). Partner treatment success was 100% among EPT users compared with 70% among nonusers ( P = 0.006). CONCLUSIONS: Partner notification and treatment success was high in this population. Despite low pretest intent to use EPT, uptake was high and associated with greater partner treatment success. Our findings suggest that EPT may be a successful partner treatment strategy to pursue in low- and middle-income countries.
Asunto(s)
Infecciones por Chlamydia , Gonorrea , Enfermedades de Transmisión Sexual , Femenino , Humanos , Embarazo , Botswana/epidemiología , Infecciones por Chlamydia/diagnóstico , Infecciones por Chlamydia/tratamiento farmacológico , Infecciones por Chlamydia/epidemiología , Chlamydia trachomatis , Trazado de Contacto , Gonorrea/diagnóstico , Gonorrea/tratamiento farmacológico , Gonorrea/epidemiología , Mujeres Embarazadas , Parejas Sexuales , Enfermedades de Transmisión Sexual/diagnóstico , Enfermedades de Transmisión Sexual/tratamiento farmacológico , Enfermedades de Transmisión Sexual/epidemiologíaRESUMEN
Globally, Botswana has one of the highest burdens of HIV. This study estimated the impact of the COVID-19 pandemic on the HIV cascade of care in Sub-Saharan Africa. We conducted an interrupted time series analysis on national-level data to estimate the effect of COVID-19 on the numbers of HIV tests, positive HIV tests and ART initiations from April 2019 until March 2021. In multivariable Poisson interrupted time series regression, the COVID-19 lockdown was associated with a 27% decrease in the monthly numbers of HIV tests (IRR 0.73, 95%CI 0.72-0.73), a 25% decrease in HIV positive tests (IRR 0.75, 95%CI 0.71-0.79), and a 43% reduction in ART initiations (IRR 0.57, 95%CI 0.55-0.60). The impact of the pandemic on all three outcomes was worse in males and those aged ≥ 50 years. In conclusion, COVID-19 had a strong negative impact on HIV screening, diagnosis and ART initiation in Botswana.
Asunto(s)
COVID-19 , Infecciones por VIH , Análisis de Series de Tiempo Interrumpido , SARS-CoV-2 , Humanos , Botswana/epidemiología , COVID-19/epidemiología , COVID-19/prevención & control , Infecciones por VIH/epidemiología , Masculino , Femenino , Adulto , Persona de Mediana Edad , Prueba de VIH/estadística & datos numéricos , Adulto Joven , Fármacos Anti-VIH/uso terapéutico , PandemiasRESUMEN
BACKGROUND: Cervical cancer remains a public health problem despite heavy global investment in health systems especially in low-and-middle-income countries (LMIC). Prophylactic vaccines against the most commonly detected human papillomavirus (HPV) types in cervical cancers are available and decisions on the selection of vaccine design depends on the prevalence of high-risk (hr) HPV genotypes for a particular region. In 2015, Botswana adopted the use of a quadrivalent HPV vaccine as a primary prevention strategy. Secondary prevention includes cervical smear screening whose uptake remains notably low among indigenous and marginalized communities despite efforts to improve access. AIM: To determine the prevalence of hrHPV genotypes and cervical lesions' burden in women from the indigenous and marginalized communities of Botswana. METHODS: This prospective survey enrolled 171 non-HPV vaccinated women aged 21 years and older. Face-to-face interviews, Pap smear screening, hr-HPV and Human Immuno-deficiency virus (HIV) testing were carried out. Conventional Papanicolau smears were analyzed and cervical brushes were preserved for hrHPV testing using the Ampfire Multiplex HR-HPV protocol which detects the following genotypes: HPV 16, 18, 31, 35, 39, 45, 51, 52, 53, 56, 58, 59 and 68. RESULTS: In this study, 168/171 (98.6%) of the women consented to HIV testing; 53/171 (31%) were living with HIV and self-reported enrolment on antiretroviral therapy. Among the women examined, 23/171 (13.5%) had cervical dysplasia with most presenting with Atypical Squamous Cells of Undetermined Significance 8/23 (35%), Low-Grade Squamous Intraepithelial Lesions 8/23 (35%), Atypical Squamous Cells-High Grade 4/23 (17%), Atypical Endocervical Cells 2/23 (9%) and Atypical Endocervical Cell favoring neoplasia 1/23(4%). However, no High-Grade Squamous Intraepithelial Lesions (HSIL) or squamous cell carcinoma (SCC) were detected. Overall hrHPV prevalence in this study was at 56/171 (32.7%). The most commonly detected hrHPV genotypes in women with cervical dysplasia were HPV39 (6.25%), HPV51 (14.5%), HPV52 (12.5%) and HPV56 (4%). Notably, HPV 16 and 18 were not found in women with cervical dysplasia. CONCLUSIONS: Our study provides valuable insights into the prevalence and distribution of hrHPV genotypes in indigenous and marginalized communities in Botswana, and the need for further investigation of their potential role in cervical carcinogenesis in this population. These results may also serve as baseline data to facilitate future evaluation of the HPV vaccine needs.
Asunto(s)
Papillomaviridae , Infecciones por Papillomavirus , Displasia del Cuello del Útero , Neoplasias del Cuello Uterino , Humanos , Femenino , Botswana/epidemiología , Adulto , Infecciones por Papillomavirus/virología , Infecciones por Papillomavirus/epidemiología , Estudios Prospectivos , Persona de Mediana Edad , Adulto Joven , Displasia del Cuello del Útero/virología , Displasia del Cuello del Útero/epidemiología , Displasia del Cuello del Útero/patología , Papillomaviridae/genética , Papillomaviridae/clasificación , Papillomaviridae/aislamiento & purificación , Neoplasias del Cuello Uterino/virología , Neoplasias del Cuello Uterino/epidemiología , Prevalencia , Genotipo , Frotis Vaginal , Prueba de Papanicolaou , Pueblos Indígenas/estadística & datos numéricos , Cuello del Útero/virología , Cuello del Útero/patología , Anciano , Virus del Papiloma HumanoRESUMEN
OBJECTIVE: To evaluate the impact of screening and treating asymptomatic pregnant women for Chlamydia (C.) trachomatis and Neisseria (N.) gonorrhoeae infections on the frequency of preterm birth or low birthweight infants in Botswana. DESIGN: Non-randomised, cluster-controlled trial. SETTING: Four antenatal care clinics in Gaborone, Botswana. POPULATION: Pregnant women aged ≥15 years, attending a first antenatal care visit, ≤27 weeks of gestation and without urogenital symptoms were eligible. METHODS: Participants in the intervention clinics received screening (GeneXpert®, Cepheid) during pregnancy and at the postnatal visit. Participants in the standard-of-care clinics received screening at the postnatal visit only. We used multivariable logistic regression and post-estimation predictive margins analysis. Post-hoc analysis was conducted among sub-samples stratified by parity. MAIN OUTCOME MEASURES: Preterm birth (<37 weeks of gestation) and low birthweight (<2500 g). RESULTS: After controlling for parity, hypertension, antenatal care visits and clinic site, the predicted prevalence of preterm birth or low birthweight was lower in the intervention arm (11%) compared with the standard-of-care arm (16%) (adjusted odds ratio [aOR] 0.59; 95% confidence interval [CI] 0.28-1.24). In post-hoc analysis, the intervention was more effective than the standard-of-care (aOR 0.20; 95% CI 0.07-0.64) among nulliparous participants. CONCLUSION: A C. trachomatis and N. gonorrhoeae infection screening and treatment intervention among asymptomatic pregnant women may have reduced preterm birth or low birthweight outcomes, but results were not statistically significant. Post-hoc analysis found that the intervention reduced adverse outcomes among nulliparous participants.
Asunto(s)
Infecciones por Chlamydia , Chlamydia trachomatis , Gonorrea , Recién Nacido de Bajo Peso , Neisseria gonorrhoeae , Complicaciones Infecciosas del Embarazo , Nacimiento Prematuro , Humanos , Femenino , Embarazo , Nacimiento Prematuro/prevención & control , Nacimiento Prematuro/epidemiología , Infecciones por Chlamydia/diagnóstico , Infecciones por Chlamydia/epidemiología , Infecciones por Chlamydia/prevención & control , Gonorrea/epidemiología , Gonorrea/diagnóstico , Gonorrea/prevención & control , Complicaciones Infecciosas del Embarazo/epidemiología , Complicaciones Infecciosas del Embarazo/prevención & control , Complicaciones Infecciosas del Embarazo/diagnóstico , Adulto , Chlamydia trachomatis/aislamiento & purificación , Botswana/epidemiología , Neisseria gonorrhoeae/aislamiento & purificación , Recién Nacido , Adulto Joven , Atención Prenatal/métodos , Tamizaje Masivo/métodos , Antibacterianos/uso terapéutico , AdolescenteRESUMEN
OBJECTIVES: In this cross-sectional study from Botswana, we investigated knowledge of myocardial infarction (MI) symptoms and risk factors among the general public and outpatients with MI risk factors based on age and lifestyle behaviors, in addition to assessing associations with sociodemographic and MI risk factors. METHOD: Open-ended questionnaires about 8 MI symptoms and 10 risk factors, were administered by research assistants to a representative selection of outpatients (n = 525) and the public (n = 2248). Weight and height were measured in all participants and BMI was calculated. Knowledge scores were compared between the two groups. We examined whether sociodemographic and MI risk factors had impact on the scores. Analyses were further adjusted for lifestyle behavior (smoking status, dietary status and physical activities). RESULTS: The valid response rate was 97.9% comprising 97.8% for the public (n = 2199) and 98.1% for outpatients (n = 515). Public respondents (35.2 ± 12.3 years) were younger than outpatients (38.5 ± 12.6 years). The public comprised 56.9% females while outpatients 54.6%. In general, outpatients had higher knowledge of MI symptoms than the public, with mean scores ± SD of 3.49 ± 2.84 vs 2.80 ± 2.54. Outpatients also had higher knowledge score of MI risk factors than the public, with mean scores, 5.33 ± 3.22 vs 3.82 ± 3.07. For MI symptoms, outpatients were more aware than the public for chest pains among all ages, for arm pain/ numbness, neck/ jaw pain radiating to/ from chest, and feeling sick or looking pallor on the skin among those aged 35-49 years. Among both the public and outpatients, lower knowledge of both MI symptoms and risk factors was associated with primary education, not residing/working together, history of hypertension, no history of heart disease/stroke, and obesity. There were similarities and disparities on MI knowledge among respondents with various numbers of healthy lifestyle behaviours. CONCLUSION: Results call for urgent educational campaigns on awareness and knowledge of MI and using strategies based on age and lifestyle behavior.
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Infarto del Miocardio , Configuración de Recursos Limitados , Femenino , Humanos , Adulto , Persona de Mediana Edad , Masculino , Estudios Transversales , Botswana/epidemiología , Pacientes Ambulatorios , Estilo de Vida , Infarto del Miocardio/diagnóstico , Infarto del Miocardio/epidemiología , Factores de Riesgo , Estilo de Vida Saludable , Dolor en el PechoRESUMEN
BACKGROUND: Morbidity and mortality due to cardiovascular diseases (CVDs) are high and increasing in low- and middle-income countries. People living with HIV (PLWH) are more likely to experience CVD than members of the general population. Therefore, we aimed to assess whether PLWH were more likely to have previously been screened for cardiovascular disease risk factors (CVDRFs) than people without HIV. METHODS: A population-based, cross-sectional study was conducted among individuals aged 16 to 68 years across 22 communities in Botswana from February to August 2017 as part of a larger community-based cluster randomized HIV treatment-as-prevention trial. Participants were asked if they had been screened for and counselled on cardiovascular disease risk factors (history of hypertension or blood pressure check, blood glucose and cholesterol measurements, weight check and weight control, tobacco smoking and cessation, alcohol use and physical activity) in the preceding 3 years. HIV testing was offered to those with an unknown HIV status. Multiple logistic regression analysis controlling for age and sex was used to assess the relationship between CVDRF screening and HIV status. RESULTS: Of the 3981 participants enrolled, 2547 (64%) were female, and 1196 (30%) were PLWH (93% already on antiretroviral therapy [ART]). PLWH were more likely to report previous screening for diabetes (25% vs. 19%, p < 0.001), elevated cholesterol (17% vs. 12%, p < 0.001) and to have had their weight checked (76% vs. 55%, p < 0.001) than HIV-uninfected participants. PLWH were also more likely to have received counselling on salt intake (42% vs. 33%, p < 0.001), smoking cessation (66% vs. 46%, p < 0.001), weight control (38% vs. 29%, p < 0.001), physical activity (46% vs. 34%, p < 0.001) and alcohol consumption (35% vs. 23%, p < 0.001) than their HIV-uninfected counterparts. Overall, PLWH were more likely to have received screening for and/or counselling on CVDRFs (adjusted odds ratio 1.84, 95% CI: 1.46-2.32, p < 0.001). CONCLUSION: PLWH were almost two times more likely to have been previously screened for CVDRFs than those without HIV, indicating a need for universal scale-up of integrated management and prevention of CVDs in the HIV-uninfected population.
Asunto(s)
Enfermedades Cardiovasculares , Infecciones por VIH , Humanos , Femenino , Masculino , Enfermedades Cardiovasculares/epidemiología , Autoinforme , Estudios Transversales , Botswana/epidemiología , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Factores de RiesgoRESUMEN
Although there have been many studies of gene variant association with different stages of HIV/AIDS progression in United States and European cohorts, few gene-association studies have assessed genic determinants in sub-Saharan African populations, which have the highest density of HIV infections worldwide. We carried out genome-wide association studies on 766 study participants at risk for HIV-1 subtype C (HIV-1C) infection in Botswana. Three gene associations (AP3B1, PTPRA, and NEO1) were shown to have significant association with HIV-1C acquisition. Each gene association was replicated within Botswana or in the United States-African American or United States-European American AIDS cohorts or in both. Each associated gene has a prior reported influence on HIV/AIDS pathogenesis. Thirteen previously discovered AIDS restriction genes were further replicated in the Botswana cohorts, extending our confidence in these prior AIDS restriction gene reports. This work presents an early step toward the identification of genetic variants associated with and affecting HIV acquisition or AIDS progression in the understudied HIV-1C afflicted Botswana population.
Asunto(s)
Variación Genética , Estudio de Asociación del Genoma Completo , Infecciones por VIH/genética , Síndrome de Inmunodeficiencia Adquirida , Complejo 3 de Proteína Adaptadora/genética , Subunidades beta de Complejo de Proteína Adaptadora/genética , Botswana/epidemiología , Genotipo , Infecciones por VIH/epidemiología , Humanos , Proteínas del Tejido Nervioso/genética , Proteínas Tirosina Fosfatasas Clase 4 Similares a Receptores/genética , Receptores de Superficie Celular/genéticaRESUMEN
BACKGROUND: The epidemiology of extended-spectrum cephalosporin-resistant Enterobacterales (ESCrE) in low- and middle-income countries (LMICs) is poorly described. Identifying risk factors for ESCrE colonization is critical to inform antibiotic resistance reduction strategies because colonization is typically a precursor to infection. METHODS: From 15 January 2020 to 4 September 2020, we surveyed a random sample of clinic patients at 6 sites in Botswana. We also invited each enrolled participant to refer up to 3 adults and children. All participants had rectal swabs collected that were inoculated onto chromogenic media followed by confirmatory testing. Data were collected on demographics, comorbidities, antibiotic use, healthcare exposures, travel, and farm and animal contact. Participants with ESCrE colonization (cases) were compared with noncolonized participants (controls) to identify risk factors for ESCrE colonization using bivariable, stratified, and multivariable analyses. RESULTS: A total of 2000 participants were enrolled. There were 959 (48.0%) clinic participants, 477 (23.9%) adult community participants, and 564 (28.2%) child community participants. The median (interquartile range) age was 30 (12-41) and 1463 (73%) were women. There were 555 cases and 1445 controls (ie, 27.8% of participants were ESCrE colonized). Independent risk factors (adjusted odds ratio [95% confidence interval]) for ESCrE included healthcare exposure (1.37 [1.08-1.73]), foreign travel [1.98 (1.04-3.77]), tending livestock (1.34 [1.03-1.73]), and presence of an ESCrE-colonized household member (1.57 [1.08-2.27]). CONCLUSIONS: Our results suggest healthcare exposure may be important in driving ESCrE. The strong links to livestock exposure and household member ESCrE colonization highlight the potential role of common exposure or household transmission. These findings are critical to inform strategies to curb further emergence of ESCrE in LMICs.
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Antibacterianos , Cefalosporinas , Femenino , Humanos , Masculino , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Botswana/epidemiología , Farmacorresistencia Microbiana , Hospitales , Monobactamas , Estudios Prospectivos , Factores de Riesgo , Niño , Adolescente , Adulto Joven , AdultoRESUMEN
Combining genomic and geospatial data can be useful for understanding Mycobacterium tuberculosis transmission in high-burden tuberculosis (TB) settings. We performed whole-genome sequencing on M. tuberculosis DNA extracted from sputum cultures from a population-based TB study conducted in Gaborone, Botswana, during 2012-2016. We determined spatial distribution of cases on the basis of shared genotypes among isolates. We considered clusters of isolates with ≤5 single-nucleotide polymorphisms identified by whole-genome sequencing to indicate recent transmission and clusters of ≥10 persons to be outbreaks. We obtained both molecular and geospatial data for 946/1,449 (65%) participants with culture-confirmed TB; 62 persons belonged to 5 outbreaks of 10-19 persons each. We detected geospatial clustering in just 2 of those 5 outbreaks, suggesting heterogeneous spatial patterns. Our findings indicate that targeted interventions applied in smaller geographic areas of high-burden TB identified using integrated genomic and geospatial data might help interrupt TB transmission during outbreaks.
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Mycobacterium tuberculosis , Tuberculosis , Humanos , Botswana/epidemiología , Tuberculosis/microbiología , Mycobacterium tuberculosis/genética , Genotipo , GenómicaRESUMEN
BACKGROUND: Patients with breast cancer in sub-Saharan Africa (SSA) experience a disproportionate burden of mortality. Fidelity to treatment guidelines, defined as receiving optimal dose and frequency of prescribed treatments, improves survival. We sought to identify patient factors associated with treatment fidelity and how this may differ for people with HIV (PWH) and breast cancer. METHODS: We conducted a qualitative study of women who initiated outpatient treatment for stages I-III breast cancer in Botswana, with deviance sampling of high- and low-fidelity patients. One-on-one interviews were conducted using semi-structured guides informed by the Theory of Planned Behavior. The sample size was determined by thematic saturation. Transcribed interviews were double coded with an integrated analytic approach. RESULTS: We enrolled 15 high- and 15 low-fidelity participants from August 25, 2020 to December 15, 2020, including 10 PWH (4 high, 6 low fidelity). Ninety-three percent had stage III disease. Barriers to treatment fidelity included stigma, social determinants of health (SDOH), and health system barriers. Acceptance and de-stigmatization, peer and other social support, increased knowledge and self-efficacy were identified as facilitators. The COVID-19 pandemic amplified existing socioeconomic stressors. Unique barriers and facilitators identified by PWH included intersectional stigma, and HIV and cancer care integration, respectively. CONCLUSION: We identified multilevel modifiable patient and health system factors associated with fidelity. The facilitators provide opportunities for leveraging existing strengths within the Botswana context to design implementation strategies to increase treatment fidelity to guideline-concordant breast cancer therapy. However, PWH experienced unique barriers, suggesting that interventions to address fidelity may need to be tailored to specific comorbidities.
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Neoplasias de la Mama , Infecciones por VIH , Humanos , Femenino , Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/terapia , Botswana/epidemiología , Pandemias , Determinantes Sociales de la Salud , Estigma Social , Investigación Cualitativa , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiologíaRESUMEN
OBJECTIVES: Pre-existing rilpivirine resistance-associated mutations (RVP-RAMs) have been found to predict HIV-1 virological failure in those switching to long-acting injectable cabotegravir/rilpivirine. We here evaluated the prevalence of archived RPV-RAMs in a cohort of people living with HIV (PWH). METHODS: We analysed near full-length HIV-1 pol sequences from proviral DNA for the presence of RPV-RAMs, which were defined according to the 2022 IAS-USA drug resistance mutation list and Stanford HIV drug resistance database. RESULTS: RPV-RAMs were identified in 757/5805 sequences, giving a prevalence of 13.0% (95% CI 12%-13.9%). Amongst the ART-naive group, 137/1281 (10.7%, 95% CI 9.1%-12.5%) had at least one RPV-RAM. Of the 4524 PWH with viral suppression on ART (VL <400 copies/mL), 620 (13.7%, 95% CI 12.7%-14.7%) had at least one RPV-RAM. E138A was the most prevalent RPV-RAM in the ART-naive group (7.9%) and the ART-suppressed group (9.3%). The rest of the mutations observed (L100I, K101E, E138G, E138K, E138Q, Y181C, H221Y, M230L, A98G, V179D, G190A, G190E and M230I) were below a prevalence of 1%. CONCLUSIONS: RPV-RAMs were present in 10.7% of ART-naive and 13.7% of ART-suppressed PWH in Botswana. The most common RPV-RAM in both groups was E138A. Since individuals with the E138A mutation may be more likely to fail cabotegravir/rilpivirine, monitoring RPV-RAMs will be crucial for effective cabotegravir/rilpivirine implementation in this setting.
Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Seropositividad para VIH , VIH-1 , Humanos , Rilpivirina/uso terapéutico , Rilpivirina/farmacología , VIH-1/genética , Fármacos Anti-VIH/farmacología , Fármacos Anti-VIH/uso terapéutico , Botswana/epidemiología , Nitrilos/farmacología , Pirimidinas/farmacología , Genotipo , Farmacorresistencia Viral/genética , Antirretrovirales/uso terapéutico , Seropositividad para VIH/tratamiento farmacológico , MutaciónRESUMEN
BACKGROUND: As children living with HIV transition from adolescence into adulthood, they face a considerable burden of psychiatric disorders (PDs) which may vary between the perinatally and behaviorally infected. The knowledge of the pattern of these PDs in relation to the varying needs of the adolescents living with HIV (ALWHIV) is unclear but necessary for maximizing their linkage to care and improving their quality of life in Botswana. AIM: To determine the pattern of PDs in ALWHIV in Botswana; to compare and explore the differences in the pattern and their associated factors between congenitally infected adolescents (CIAs) and behaviorally infected adolescents (BIAs). METHODS: A cross-sectional survey of 622 ALWHIV (399 CIA and 223 BIA) with the Mini International Neuropsychiatric Interview-Kid Screen. RESULTS: The participants' mean age (SD) was 17.71 (1.60) years, with more males (54%), of whom 52.9% had at least one PD, with depression (23.6%) and generalised anxiety disorder (18.0%) being the most prevalent. The externalising disorders were associated with being CIA (OR = 3.99; 95% CI:1.87-8.54), male gender (OR = 3.93; 95% CI:2.02-7.64), and a viral load of 400 and above copies (OR = 3.53; 95%CI:1.92-6.48). Internalising disorders were associated with being BIA (OR = 3.64; 95%; CI: 2.39-5.56), females (OR = 2.59; 95% CI:1.75-3.83), poor counselling (OR = 2.23; 95% CI: 1.42-3.51) and struggling to accept HIV status (OR = 1.73; 95% CI:1.14-2.62). CONCLUSIONS: Depression and anxiety disorders were the most prevalent PDs in ALWHIV, who differed in psychiatric presentations, the BIAs being more likely to present with internalizing disorders, while the CIAs had more externalizing disorders. Due to the varying needs of ALWHIV, individualized management plans that consider gender, mode of infection, and other psycho-social needs, should be further studied and encouraged.
Asunto(s)
Infecciones por VIH , Trastornos Mentales , Niño , Femenino , Humanos , Masculino , Adolescente , Adulto , Infecciones por VIH/complicaciones , Infecciones por VIH/epidemiología , Infecciones por VIH/psicología , Botswana/epidemiología , Estudios Transversales , Calidad de Vida , Trastornos Mentales/epidemiologíaRESUMEN
BACKGROUND: Tobacco use is one of the notable risk factors for non-communicable diseases globally. The objective of this study was to assess the prevalence of tobacco use and identify its correlates in the general population of Botswana aged 15 to 69 years. METHODS: This study used a nationally representative WHO STEPwise Approach to Non-Communicable Disease Risk Factor Surveillance (STEPS) risk factors conducted in 2014 to explore the prevalence of tobacco use and its correlates in Botswana. Using IBM SPSS version 27, data on 4062 people aged 15 to 69 years who had been selected using multistage cluster sampling and had successfully completed the individual questionnaire were analysed. The prevalence of current tobacco smoking and smokeless tobacco use was determined using descriptive statistics while multivariable logistic regression was employed to assess correlates of current tobacco smoking and smokeless tobacco use. All comparisons were statistically significant at 5% significance level. RESULTS: From a total sample of 4062 participants the prevalence of current tobacco smoking was estimated to be 12.9% while smokeless tobacco use was 3.2%. Adjusted results indicate that the odds of current tobacco smoking were eight times (AOR = 8.57, C.I = 6.28-11.7) higher among males compared to their female counterparts; six(AOR = 6.52, C.I 3.64-11.6) and three (AOR = 3.27, C.I. =2.07-5.15) times higher among respondents with no education and primary level education respectively, compared to their counterparts with tertiary or higher education; while for alcohol users the odds of current tobacco smoking were four times (AOR = 4.28, C.I = 2.93-6.24) higher than among non-alcohol users. The odds of smokeless tobacco use were significantly higher among women compared to men (AOR = 7.34, C.I = 4.01-13.4); individuals aged 50-59 (AOR = 1.15, C.I = 1.06-3.37) and 60-69 years (AOR = 1.23, C.I. =1.08-3.63) compared to 15-29 years; individuals with no education (AOR = 2.07, C.I = 1.03-4.02) and primary education (AOR = 1.05, C.I = 1.01-2.23) compared to individuals with tertiary education. However, the odds of smokeless tobacco use were significantly lower among individuals who consume alcohol (AOR = 0.48, C.I. = 0.29-0.80) compared to non-alcohol consumers. CONCLUSION: Findings of this study indicate the need to strengthen existing national policies to reduce harmful use of tobacco among men, women, older adults, no or primary education level individuals and alcohol users.
Asunto(s)
Nicotiana , Tabaco sin Humo , Masculino , Humanos , Femenino , Anciano , Prevalencia , Botswana/epidemiología , Uso de Tabaco/epidemiología , Encuestas y CuestionariosRESUMEN
INTRODUCTION: The advent of the COVID-19 pandemic necessitated the Botswana Presidential Task Force, in collaboration with the Ministry of Health and Wellness (MoHW), to devise strategies to utilize the already overburdened health personnel to combat the spread of the coronavirus. This descriptive case study aimed to describe nurses' role during COVID-19 in Botswana. DESIGN AND METHODS: A case study analysis was used to describe nurses' roles during COVID-19. Data were collected through observing events in various health facilities and various media platforms that described how nurses had to position themselves to combat the pandemic. Content analysis was done by coding and developing categories that put like content together and generate thematic areas. RESULTS: Nurses from different sectors were redeployed to assist in setting up different units at the COVID-19 makeshift hospital, taking away from the already understaffed section of health care workers resulting in the overburden and work overload. Furthermore, nurses continued with their regular day-to-day nursing care duties in various healthcare settings, albeit under a severe shortage due to the national response to COVID-19. CONCLUSION: Adaptations and experiential strategies enabled the distribution of the nursing workforce to cover all locations to curb the spread of COVID-19 despite the challenges encountered. Recommendations and lessons learned on how to prepare for future pandemics are also discussed. CLINICAL RELEVANCE: Due to their large numbers, nurses formed the backbone of the Botswana COVID-19 response strategy. Therefore, policy-makers should be responsive to the nurses' perspectives when developing strategic policies on how to deal with pandemics based on their experiences.
Asunto(s)
COVID-19 , Enfermeras y Enfermeros , Humanos , COVID-19/epidemiología , Botswana/epidemiología , Pandemias , Atención a la SaludRESUMEN
OBJECTIVE: Substance use disorders (SUDs) have increased substantially across the globe, and has become one of the world's most significant public health and socioeconomic challenge. This study examined the prevalence and patterns of substance use disorders among patients admitted to the main psychiatric hospital in Botswana, the Sbrana Psychiatric Hospital. METHOD: This was a cross-sectional study of patients admitted to a major psychiatric hospital in Botswana. SUDs were assessed using the Alcohol, Smoking, and Substance Involvement Screening Test (ASSIST) v13.0. Bivariate analysis was conducted to determine the association between socio-demographic characteristics and SUDs. Multivariate logistic regression was used to control for confounders. RESULTS: The final analysis involved 101 patients. Participants ranged in age from 18-60 years, and over half (59.4%) were male. The majority of participants (85.1%) had used potentially addicting substances at least once during their lifetime, with 63.4% having current substance use disorders. The most frequently used substances were tobacco, cannabis, alcohol, and cocaine at 58.4%, 42.6%, 34.7% and 12.8% respectively. SUDs were more common among participants who were male, ages 18-35 years, single, had a tertiary education, or were unemployed. CONCLUSIONS: There is a high prevalence of substance use and SUDs among psychiatric patients in Botswana. Screening for and interventions to manage SUDs should be part of routine care at psychiatric health care facilities in this country. Consideration should be given to the screening of all patients admitted to psychiatric hospitals in Botswana for SUDs using the ASSIST.
Asunto(s)
Hospitales Psiquiátricos , Trastornos Relacionados con Sustancias , Humanos , Masculino , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Femenino , Prevalencia , Estudios Transversales , Botswana/epidemiología , Trastornos Relacionados con Sustancias/epidemiologíaRESUMEN
Background: Long-distance truck drivers (LDTDs) have a higher rate of HIV infection compared to the general population. This is due to their living and working conditions which predispose them to riskier sexual behaviours. Inadequate knowledge of HIV and AIDS, coupled with risky sexual behaviours such as unprotected sex with commercial sex workers (CSWs), predisposes LDTDs to contract and propagate HIV. This study aims to determine the factors associated with buying sex and the knowledge that condoms prevent HIV transmission among long-distance truck drivers at Kazungula weighbridge terminal in the Chobe District of Botswana.Methods: A cross-sectional descriptive survey was employed and 399 LDTDs participated. A questionnaire was used to collect sociodemographic data and information on knowledge of HIV and AIDS and the sexual behaviours of the LDTDs.Results: The results reveal that more than half of the LDTDs (56.9%; n = 227) had paid for sex with CSWs at some point in their travels, and 27.1% (n = 108) reported having had unprotected sex with CSWs. The LDTDs who preferred to have sex with CSWs without a condom had about five times the odds of buying sex with CSWs than those who preferred to use a condom (AOR 4.9; 95% CI 2.85-8.46). Disliking condom use was a factor contributing to less knowledge of condom use preventing HIV among the LDTDs (AOR 0.4; CI 0.17-0.97).Conclusion: It can be concluded from the results of this study that the LDTDs engage in considerable risky sexual behaviours, and associated factors were found to be multidimensional. This population remains of concern in HIV acquisition and transmission. Therefore, there is a need for a robust public health response to deal with the problem of both new infection and re-infection with HIV in this population.
Asunto(s)
Infecciones por VIH , Humanos , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Condones , Estudios Transversales , Botswana/epidemiología , Conocimientos, Actitudes y Práctica en Salud , Conducta Sexual , Vehículos a MotorRESUMEN
Globally, mental health problems have been reported to be more common in youth living with HIV (YLWH) than in the general population, but routine mental health screening is rarely done in high-volume HIV clinics. In 2019, YLWH in a large HIV clinic in Botswana were screened using the Generalized Anxiety Scale-7 (GAD-7) and Patient Health Questionnaire-9 (PHQ-9) in a pilot standard-of-care screening programme. Two-way ANOVA was used to describe the effects of age group (12-<16, 16-<20 and 20-25 years old) and sex on GAD-7 and PHQ-9 scores. Chi-square statistics were used to compare characteristics of YLWH with and without potential suicidality/self-harm symptoms based on question 9 in the PHQ-9. Among 1 469 YLWH, 33.1%, 44.3% and 15.0% had anxiety, depression and potential suicidality/self-harm symptoms respectively. YLWH of 20-25 years old and 16-<20 years old had higher GAD-7 scores compared to 12-<16-year-olds (p = 0.014 and p = <0.001 respectively). Female YLWH of 20-25 years old had higher PHQ-9 scores compared to 12-<16-year-olds (p = 0.002). There were no other sex-age dynamics that were statistically significant. Female YLWH endorsed more thoughts of suicidality/self-harm than males (17% versus 13%, p = 0.03 respectively). Given the proportion of YLWH with mental health symptoms, Botswana should enhance investments in mental health services for YLWH, especially for young female adults who bear a disproportionate burden.