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1.
Pan Afr Med J ; 48: 5, 2024.
Article in English | MEDLINE | ID: mdl-38946740

ABSTRACT

Introduction: as cholera, due to toxigenic bacteria Vibrio cholera (serogroups O1 and O139), is a major public health threat in Africa, the aim of this work was to investigate potentially pathogenic Vibrionaceae bacteria firstly from human stool samples, and secondly from various environmental water points of Saint-Louis city in Senegal. Methods: a hospital-based study was conducted between 2013 and 2015. Stool samples were taken and cultured from daily incoming patients or hospitalized for acute diarrhea at Saint-Louis´ regional hospital. For environment, a monthly longitudinal sampling from January to October 2016 was carried out at 10 sites in the city. We used total DNA extracted from APW (alkaline peptone water) broth solutions and on suspect bacterial colonies to run PCR Multiplex targeting specific DNA fragments to detect Vibrio genus and specific species. In case of positivity, a simplex PCR was performed to test for cholera toxins Ctx, and V. parahaemolyticus TRH and TDH. Results: for 43 patients screened, bacterial culture was positive in 6% of cases but no strain of V. cholerae or other Vibrio sp. was isolated. PCR on 90 APW solutions were positive for Vibrio sp.(n = 43), V. cholera(n = 27), V. mimicus(n = 16), V. parahaemolyticus(8), V. alginolyticus(n = 4), and V. vulnificus(n = 2). Unlike for those on suspected colonies which were positive for a majority of V. parahaemolyticus (n = 40) and V. cholerae non-O1 / O139 (n = 35). Six strains of V. parahaemolyticus carried TRH gene, 3 of which expressed simultaneously virulence TRH and TDH genes. For physicochemical parameters, all temperatures varied similarly according to a unimodal seasonality, as well as salinity. Conclusion: despite the presence of natural populations of Vibrionaceae, even toxigenic ones, was noted in water environment, along with favorable habitat conditions that could play a role in transmission of Vibriosis in the Saint Louis population, we did not isolate any of them from patients screened at the hospital.


Subject(s)
Cholera , Feces , Polymerase Chain Reaction , Humans , Senegal , Cholera/microbiology , Cholera/epidemiology , Feces/microbiology , Diarrhea/microbiology , Diarrhea/epidemiology , Water Microbiology , Vibrionaceae/isolation & purification , Vibrionaceae/genetics , Vibrio/isolation & purification , Vibrio/genetics , DNA, Bacterial/analysis , Vibrio cholerae/isolation & purification , Vibrio cholerae/genetics , Adult , Female , Male
2.
Pan Afr Med J ; 47: 151, 2024.
Article in English | MEDLINE | ID: mdl-38974700

ABSTRACT

Introduction: in Senegal, cervical cancer is the leading cause of cancers among women. This study estimated the costs associated with cervical cancer screening and treatment for precancerous lesions from the health system perspective. Methods: we estimated costs for screening, diagnostics, and treatment. We conducted a cross-sectional study in seven regions with primary data collected from 50 health facilities. Data collection included structured questionnaires, with secondary data from the Ministry of Health and other sources. A mixed-methods approach combined ingredients-based costing and financial expenditures to estimate direct medical and non-medical costs. All costs are reported in 2019 USD. Results: average costs were $3.71 for visual inspection with acetic acid, $16.49 for Pap smear, and $46.65 for human papillomavirus deoxyribonucleic acid (HPV DNA) testing. Screening cost drivers were clinical exam supplies and clinical equipment for visual inspection with acetic acid, offsite processing of specimens for Pap smear, and lab equipment costs for HPV DNA procedure. The average cost of diagnosis via colposcopy alone was $25.73, and colposcopy with biopsy/endocervical curettage was $74.96. The average cost of treatment followed by one visit for pre-cancerous lesions was $195.24 for loop electrosurgical excision, $47.35 for cryotherapy, and $32.35 for thermal ablation. Clinical equipment and lab costs were the largest contributors to colposcopy and endocervical curettage/biopsy expenses. Clinical equipment made up the largest portion of cryotherapy, loop electrosurgical excision, and thermoablation costs. Conclusion: this study is the first to estimate the costs of HPV screening and treatment in Senegal, which can be used to inform decision-making on cervical cancer investments.


Subject(s)
Colposcopy , Early Detection of Cancer , Mass Screening , Papanicolaou Test , Uterine Cervical Neoplasms , Vaginal Smears , Humans , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/economics , Uterine Cervical Neoplasms/therapy , Female , Senegal , Cross-Sectional Studies , Early Detection of Cancer/economics , Papanicolaou Test/economics , Vaginal Smears/economics , Mass Screening/economics , Mass Screening/methods , Colposcopy/economics , Health Care Costs/statistics & numerical data , Papillomavirus Infections/diagnosis , Papillomavirus Infections/economics , Surveys and Questionnaires , Human Papillomavirus DNA Tests/economics , Acetic Acid , Precancerous Conditions/diagnosis , Precancerous Conditions/economics , Precancerous Conditions/therapy , Biopsy/economics
3.
Ann N Y Acad Sci ; 1537(1): 98-112, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38973341

ABSTRACT

To reduce micronutrient deficiencies, Senegal mandates the fortification of refined oil with vitamin A and wheat flour with iron and folic acid. Expanding Senegal's large-scale food fortification programs to include fortified bouillon could help fill the remaining gaps in dietary micronutrient requirements. Using 7-day household food consumption data collected between 2018 and 2019, we assessed the potential contributions of bouillon fortified with vitamin A (40-250 µg/g bouillon), folic acid (20-120 µg/g), vitamin B12 (0.2-2 µg/g), iron (0.6-5 mg/g), and zinc (0.6-5 mg/g) for meeting micronutrient requirements of women of reproductive age (WRA; 15-49 years old) and children (6-59 months old). Most households (90%) reported consuming bouillon, including poor and rural households. At modeled fortification levels, bouillon fortification reduced the national prevalence of inadequacy by up to ∼20 percentage points (pp) for vitamin A, 34 pp (WRA) and 20 pp (children) for folate, 20 pp for vitamin B12, 38 pp (WRA) and 30 pp (children) for zinc, and ∼8 pp for iron. Predicted reductions in inadequacy were generally larger among poor and rural populations, especially for vitamins A and B12. Our modeling suggests that bouillon fortification has the potential to substantially reduce dietary inadequacy of multiple micronutrients and could also help address inequities in dietary micronutrient inadequacies in Senegal.


Subject(s)
Food, Fortified , Micronutrients , Humans , Senegal , Female , Child, Preschool , Micronutrients/administration & dosage , Infant , Adolescent , Adult , Middle Aged , Young Adult , Male , Folic Acid/administration & dosage , Nutritional Requirements , Zinc/administration & dosage , Vitamin A/administration & dosage , Flour/analysis , Family Characteristics
4.
Afr J Reprod Health ; 28(6): 15-24, 2024 06 30.
Article in English | MEDLINE | ID: mdl-38979639

ABSTRACT

A deeper understanding of the factors associated with female genital mutilation remains important in the fight against this practice, particularly in developing countries. This study focused on young women (15-35 years) and pooled analysis using DHS data (2015-2019) for selected sub-Saharan African countries was done. The weighted study sample was 26289 and the data were analysed using univariate, bivariate and multivariate regression analysis. The results are based on information at the time of the survey. The overall prevalence of FGM among young women from the selected countries was 71.5%. Sierra Leone had the highest prevalence (83.7%), followed by Tanzania (80.8%), Ethiopia (73.0%), and Gambia (72.4%). The prevalence in Senegal and Guinea were both below 60%. We found that age, level of education, age at first marriage, parity, employment status, media exposure, and type of place of residence were statistically associated with FGM. This calls for targeted interventions focusing on increasing awareness, education, and empowerment for young women with low socio-economic status.


Une compréhension plus approfondie des facteurs associés aux mutilations génitales féminines reste importante dans la lutte contre cette pratique, en particulier dans les pays en développement. Cette étude s'est concentrée sur les jeunes femmes (15-35 ans) et une analyse groupée utilisant les données DHS (2015-2019) pour certains pays d'Afrique subsaharienne a été réalisée. L'échantillon pondéré de l'étude était de 26 289 et les données ont été analysées à l'aide d'une analyse de régression univariée, bivariée et multivariée. Les résultats sont basés sur les informations disponibles au moment de l'enquête. La prévalence globale des MGF parmi les jeunes femmes des pays sélectionnés était de 71,5 %. La Sierra Leone avait la prévalence la plus élevée (83,7 %), suivie par la Tanzanie (80,8 %), l'Éthiopie (73,0 %) et la Gambie (72,4 %). La prévalence au Sénégal et en Guinée était inférieure à 60 %. Nous avons constaté que l'âge, le niveau d'éducation, l'âge au premier mariage, la parité, la situation professionnelle, l'exposition aux médias et le type de lieu de résidence étaient statistiquement associés aux MGF. Cela nécessite des interventions ciblées axées sur la sensibilisation, l'éducation et l'autonomisation des jeunes femmes ayant un statut socio-économique faible.


Subject(s)
Circumcision, Female , Humans , Circumcision, Female/statistics & numerical data , Female , Adult , Adolescent , Prevalence , Young Adult , Africa South of the Sahara/epidemiology , Socioeconomic Factors , Ethiopia/epidemiology , Senegal/epidemiology , Health Knowledge, Attitudes, Practice , Sierra Leone/epidemiology , Cross-Sectional Studies , Educational Status , Tanzania/epidemiology
5.
Afr Health Sci ; 24(1): 36-41, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38962333

ABSTRACT

Aim: To provide more insights about beliefs of witchcraft and supernatural means as causes of human immunodeficiency virus (HIV) among women in Senegal. Method: We included eligible women from the demographic and health survey conducted in Senegal during the year 2017. Results: We included 15335 women, of those 620 (4%) thought that they can get HIV through witchcraft or supernatural means. After the adjustment of all available covariates, old age, receiving primary or secondary education, higher wealth index, more frequency of listening to radio, watching television for less than once a week and reading newspaper or magazine for at least once a week were significantly associated with a reduction in the witchcraft and supernatural means beliefs (p < 0.05). Moreover, rural residence was associated with an increase in the wrong HIV beliefs (p < 0.05). Conclusion: We demonstrated many predictors of the wrong beliefs about getting HIV infection by witchcraft or supernatural means in the Senegalese women. Policymakers should initiate health educational programs in parallel with increasing the socioeconomic status to limit the HIV transmission. In addition, continuous monitoring of the HIV knowledge in the endemic countries is crucial to decrease HIV burden.


Subject(s)
HIV Infections , Health Knowledge, Attitudes, Practice , Socioeconomic Factors , Witchcraft , Humans , Female , HIV Infections/psychology , HIV Infections/epidemiology , Adult , Senegal/epidemiology , Middle Aged , Young Adult , Adolescent , Sociodemographic Factors , Rural Population , Health Surveys
6.
BMC Infect Dis ; 24(1): 682, 2024 Jul 09.
Article in English | MEDLINE | ID: mdl-38982383

ABSTRACT

BACKGROUND: Schistosomiasis remains a public health concern worldwide. It is responsible for more than 240 million cases in 78 countries, 40 million of whom are women of childbearing age. In the Senegal River basin, both Schistosoma haematobium and Schistosoma mansoni are very prevalent in school-age children. However, there is a lack of information on the burden of schistosomiasis in pregnant women, which can cause complications in the pregnancy outcome. This study aimed to determine the prevalence and associated factors of schistosomiasis in pregnant women. METHODS: We conducted a prospective cross-sectional study of pregnant women attending antenatal clinics at the health center of the Senegalese Sugar Company and at the hospital of Richard Toll between August and December 2021. The urine and stool samples collected were examined using microscopy techniques and quantitative polymerase chain reaction (qPCR) to detect the presence of S. haematobium and S. mansoni. The urines were previously tested using urine reagent strips to detect hematuria and proteinuria. Socio-demographical, clinical, and diagnostically data were recorded by the midwife and the gynaecologist. The data were analyzed using a logistic regression model. RESULTS: Among the 298 women examined for the infection by microscopic, 65 (21.81%) were infected with urogenital schistosomiasis, 10 (3.36%) with intestinal schistosomiasis, and 4 (1.34%) were co-infected with both types of schistosomiasis. Out of the 288 samples tested by qPCR, 146 (48.99%) were positive for S. haematobium, 49 (35.51%) for S. mansoni and 22 (15.94%) for both species (co-infection). Pregnant women having microscopic haematuria and proteinuria were significantly more infected (p < 0.05). CONCLUSION: This study has revealed a high prevalence of schistosomiasis in pregnant women in Senegal. The qPCR allowed us to detect more cases compared to the microscopy. There is a need to conduct more studies to understand the real burden of the disease and to set up a surveillance system to prevent pregnancy-related complications.


Subject(s)
Schistosoma haematobium , Schistosoma mansoni , Humans , Female , Senegal/epidemiology , Pregnancy , Cross-Sectional Studies , Adult , Prevalence , Prospective Studies , Young Adult , Schistosoma mansoni/isolation & purification , Schistosoma mansoni/genetics , Schistosoma haematobium/isolation & purification , Schistosoma haematobium/genetics , Adolescent , Animals , Pregnancy Complications, Parasitic/epidemiology , Pregnancy Complications, Parasitic/parasitology , Schistosomiasis mansoni/epidemiology , Schistosomiasis haematobia/epidemiology , Schistosomiasis haematobia/urine , Schistosomiasis/epidemiology , Schistosomiasis/urine , Feces/parasitology , Risk Factors
7.
Malar J ; 23(1): 205, 2024 Jul 09.
Article in English | MEDLINE | ID: mdl-38982475

ABSTRACT

BACKGROUND: Drug resistance in Plasmodium falciparum is a major threat to malaria control efforts. Pathogen genomic surveillance could be invaluable for monitoring current and emerging parasite drug resistance. METHODS: Data from two decades (2000-2020) of continuous molecular surveillance of P. falciparum parasites from Senegal were retrospectively examined to assess historical changes in malaria drug resistance mutations. Several known drug resistance markers and their surrounding haplotypes were profiled using a combination of single nucleotide polymorphism (SNP) molecular surveillance and whole genome sequence based population genomics. RESULTS: This dataset was used to track temporal changes in drug resistance markers whose timing correspond to historically significant events such as the withdrawal of chloroquine (CQ) and the introduction of sulfadoxine-pyrimethamine (SP) in 2003. Changes in the mutation frequency at Pfcrt K76T and Pfdhps A437G coinciding with the 2014 introduction of seasonal malaria chemoprevention (SMC) in Senegal were observed. In 2014, the frequency of Pfcrt K76T increased while the frequency of Pfdhps A437G declined. Haplotype-based analyses of Pfcrt K76T showed that this rapid increase was due to a recent selective sweep that started after 2014. DISCUSSION (CONCLUSION): The rapid increase in Pfcrt K76T is troubling and could be a sign of emerging amodiaquine (AQ) resistance in Senegal. Emerging AQ resistance may threaten the future clinical efficacy of artesunate-amodiaquine (ASAQ) and AQ-dependent SMC chemoprevention. These results highlight the potential of molecular surveillance for detecting rapid changes in parasite populations and stress the need to monitor the effectiveness of AQ as a partner drug for artemisinin-based combination therapy (ACT) and for chemoprevention.


Subject(s)
Antimalarials , Drug Resistance , Mutation , Plasmodium falciparum , Senegal , Plasmodium falciparum/drug effects , Plasmodium falciparum/genetics , Drug Resistance/genetics , Antimalarials/pharmacology , Antimalarials/therapeutic use , Retrospective Studies , Humans , Malaria, Falciparum/parasitology , Malaria, Falciparum/epidemiology , Polymorphism, Single Nucleotide , Protozoan Proteins/genetics , Haplotypes , Membrane Transport Proteins/genetics
8.
J Infect Dev Ctries ; 18(6): 851-861, 2024 Jun 30.
Article in English | MEDLINE | ID: mdl-38990988

ABSTRACT

INTRODUCTION: In Senegal, molecular diagnosis was widely used for the detection and management of COVID-19 patients. However, genomic surveillance was very limited in the public sector. This study aimed to share the experience of a Senegalese public sector laboratory in response to the COVID-19 pandemic, and to describe the distribution of variants circulating in 2020 and 2021. METHODOLOGY: From July 2020 to December 2021, SARS-CoV-2 qRT-PCR was performed on nasopharyngeal samples from travelers and symptomatic patients at the Bacteriology and Virology Laboratory (LBV) of the Aristide le Dantec University Teaching Hospital. Samples with a cycle threshold (Ct) ≤ 30 were selected for whole-genome sequencing (WGS) using the Nanopore technology. In-house scripts were developed to study the spatial and temporal distribution of SARS-CoV-2 variants in Senegal, using our sequences and those retrieved from the GISAID database. RESULTS: Of 8,207 patients or travelers screened for SARS-CoV-2, 970 (11.8%) were positive and 386 had a Ct ≤ 30. WGS was performed on 133 samples. Concomitantly with high-quality sequences deposited in the GISAID database covering nine cities in Senegal in 2020 and 2021 (n = 1,539), we observed a high circulation of the 20A (B.1, B.1.416 and B.1.620) and 20B (B.1.1.420) lineages in 2020, while most of the samples belonged to Delta variants (AY34 and AY.34.1, 22%) in 2021. CONCLUSIONS: Despite its late involvement, COVID-19 diagnosis was routinely performed in LBV, but genomic characterization remained challenging. The genomic diversity of SARS-CoV-2 strains in Senegal reflected that observed worldwide during the first waves of the pandemic.


Subject(s)
COVID-19 , Genome, Viral , SARS-CoV-2 , Humans , Senegal/epidemiology , COVID-19/epidemiology , COVID-19/virology , SARS-CoV-2/genetics , SARS-CoV-2/isolation & purification , Whole Genome Sequencing , Molecular Epidemiology , Nasopharynx/virology , Adult , Male , Female , Phylogeny , Middle Aged
9.
ScientificWorldJournal ; 2024: 9945354, 2024.
Article in English | MEDLINE | ID: mdl-39026597

ABSTRACT

Poor agricultural soil management practices and water use optimisation in irrigation are major challenges facing crop production in Senegal. To address these problems, a factorial experiment was conducted in 2021 and 2022 to investigate the effects of biochar on tomato growth and yield in sandy loam soil under different irrigation levels. Treatments included three biochar treatments (B2 = 30 t·ha-1, B1 = 15 t·ha-1, and B0 = 0 t·ha-1) and three irrigation levels (full irrigation, W0 = 8 L·m-2·day-1; medium deficit irrigation, W1 = 6 L·m-2·day-1, which is 75% of W0; and deficit irrigation, W2 = 4 L·m-2·day-1, 50% of W0). The results showed that using biochar at 30 t·ha-1 significantly (P < 0.05) reduced the bulk density of the soil by up to 8.3% under W1. In addition, biochar at 15 t·ha-1 and 30 t·ha-1 enhanced, regardless of the amount of water applied, the growth of tomato plants by at least 14% compared to that in the B0 treatment. Furthermore, the tomatoes' yields in biochar treatments B1 (12.58 t·ha-1) and B2 (12.45 t·ha-1) under W2 were greater than those under B0 (9.27 t·ha-1) under full irrigation. The combinations of biochar and the lowest irrigation water level (W2 and B1 or W2 and B2) can therefore allow a water economy of up to 50% of full irrigation without compromising yield. Our study concluded that biochar could sustainably reduce agricultural water consumption while increasing yields. To further understand the influence of biochar on sandy loam soil, more research is needed on its effects on soil moisture content at permanent wilting points and field capacity.


Subject(s)
Agricultural Irrigation , Charcoal , Soil , Solanum lycopersicum , Solanum lycopersicum/growth & development , Soil/chemistry , Agricultural Irrigation/methods , Senegal , Water , Agriculture/methods
10.
Viruses ; 16(6)2024 Jun 15.
Article in English | MEDLINE | ID: mdl-38932256

ABSTRACT

Dugbe virus (DUGV) is a tick-borne arbovirus first isolated in Nigeria in 1964. It has been detected in many African countries using such diverse methods as serological tests, virus isolation, and molecular detection. In Senegal, reports of DUGV isolates mainly occurred in the 1970s and 1980s. Here, we report a contemporary detection of three novel DUGV isolates upon screening of a total of 2877 individual ticks regrouped into 844 pools. The three positive pools were identified as Amblyomma variegatum, the main known vector of DUGV, collected in the southern part of the country (Kolda region). Interestingly, phylogenetic analysis indicates that the newly sequenced isolates are globally related to the previously characterized isolates in West Africa, thus highlighting potentially endemic, unnoticed viral transmission. This study was also an opportunity to develop a rapid and affordable protocol for full-genome sequencing of DUGV using nanopore technology. The results suggest a relatively low mutation rate and relatively conservative evolution of DUGV isolates.


Subject(s)
Genome, Viral , Phylogeny , Ticks , Animals , Senegal , Ticks/virology , Amblyomma/virology , Arboviruses/genetics , Arboviruses/isolation & purification , Arboviruses/classification
11.
Emerg Infect Dis ; 30(7): 1490-1492, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38916865

ABSTRACT

We conducted a cross-sectional serosurvey for chikungunya virus (CHIKV) exposure in fruit bats in Senegal during 2020-2023. We found that 13.3% (89/671) of bats had CHIKV IgG; highest prevalence was in Eidolon helvum (18.3%, 15/82) and Epomophorus gambianus (13.7%, 63/461) bats. Our results suggest these bats are naturally exposed to CHIKV.


Subject(s)
Antibodies, Viral , Chikungunya Fever , Chikungunya virus , Chiroptera , Animals , Chiroptera/virology , Senegal/epidemiology , Chikungunya virus/immunology , Chikungunya Fever/epidemiology , Chikungunya Fever/virology , Chikungunya Fever/blood , Chikungunya Fever/history , Seroepidemiologic Studies , Antibodies, Viral/blood , Cross-Sectional Studies
12.
Surg Endosc ; 38(7): 4042-4047, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38864885

ABSTRACT

BACKGROUND: Cumulative sum (CUSUM) analysis is a valuable tool for quantifying the learning curve of surgical teams by detecting significant changes in operative length. However, there is limited research evaluating the learning curve of laparoscopic techniques in low-resource settings. The objective of this study is to evaluate the learning curve for laparoscopic appendectomy within a single surgical team in Senegal. METHODS: This was a single-center prospective study conducted from May 1, 2018, to August 31, 2023 of patients who underwent laparoscopic appendectomy at a tertiary care institution in West Africa. The AAST classification was used to describe the severity of appendicitis. Parameters studied included age, sex, operative length, conversion rate, and postoperative outcomes. To quantify the learning curve, CUSUM analysis of operative length was performed. RESULTS: A total of 81 patients were included. The mean age was 26.7 years (range 11-70 years) with a sex ratio of 1.9. Pre-operative severity according to AAST was Grade I in 75.4% (n = 61), Grade III in 7.4% (n = 6), Grade IV in 6.1% (n = 5), and Grade V in 11.1% (n = 9). Conversion occurred in 5 cases (6.1%). The average operative length was 76.8 min (range 30-180 min) and the average length of hospitalization was 2.7 days (range 1-13 days). Morbidity was observed in 3.7% (n = 3) and there were no deaths. The CUSUM analysis showed that a steady operative length was achieved after 28 procedures, with decreasing operative lengths thereafter. CONCLUSION: Surgeons in our setting overcame the learning curve for laparoscopic appendectomy after performing 28 procedures. Moreover, laparoscopic appendectomy is safe and feasible throughout the learning curve. CUSUM analysis should be applied to other laparoscopic procedures and individualized by surgical teams to improve surgical performance and patient outcomes in low-resource settings.


Subject(s)
Appendectomy , Appendicitis , Laparoscopy , Learning Curve , Operative Time , Humans , Appendectomy/methods , Appendectomy/education , Laparoscopy/education , Laparoscopy/methods , Female , Male , Adult , Adolescent , Prospective Studies , Middle Aged , Child , Young Adult , Appendicitis/surgery , Aged , Senegal , Developing Countries , Postoperative Complications/epidemiology , Postoperative Complications/etiology , Length of Stay/statistics & numerical data
13.
Sci Rep ; 14(1): 14709, 2024 06 26.
Article in English | MEDLINE | ID: mdl-38926602

ABSTRACT

Natural spices play an essential role in human nutrition and well-being. However, their processing on different scales can expose them to potential sources of contamination. This study aimed to describe the bacterial community genomic footprint in spices sold in Senegal. Spice samples were collected in August 2022 in Saint-Louis, Senegal. The genomic region coding bacterial 16S rRNA was then amplified and sequenced using Oxford Nanopore Technology (ONT). Sequencing was carried out on two batches of samples, one containing part of the "Local Spices or Herbs" (n = 10), and the other, a mixture of 7 spices, Curcuma, Thyme and the other part of the "Local Spices or Herbs" (n = 39). Results showed high bacterial diversity and the predominance of Escherichia coli and Salmonella enterica in samples, with total reads of 65,744 and 165,325 for the two batches, respectively. The sample category "Homemade mixture of food condiments ", which includes all "Local Spices or Herbs" samples, showed remarkable bacterial diversity. These were followed by Curcuma, a blend of 7 spices and thyme. Also, the different categories of spices studied show similarities in their bacterial composition. These results highlight the microbial community's highly diverse genomic profile, including pathogenic bacteria, in spice samples.


Subject(s)
Metagenomics , RNA, Ribosomal, 16S , Spices , Spices/microbiology , Senegal , Metagenomics/methods , RNA, Ribosomal, 16S/genetics , Bacteria/genetics , Bacteria/classification , Bacteria/isolation & purification , Humans , Metagenome , Microbiota/genetics , Curcuma/genetics , Curcuma/microbiology
14.
J Health Popul Nutr ; 43(1): 97, 2024 Jun 26.
Article in English | MEDLINE | ID: mdl-38926879

ABSTRACT

INTRODUCTION: High salt intake is a major risk factor for hypertension and its complications such as chronic kidney disease (CKD) and cardiovascular diseases. The present study aimed to determine level of sodium consumption and its relation with kidney function in the rural populations of Ferlo (centre of Senegal). SUBJECTS AND METHODS: We performed a cross-sectional study including 400 volunteers aged > 18 years. Clinical, biological and dietary data were collected during household visits. Daily sodium intake was measured in the 24 h-urine outpout and CKD was defined as eGFR < 60 ml/min. Linear regression analysis was used to assess association between sodium intake and covariates. RESULTS: Mean age was 46.42 ± 15.60 and sex-ratio was 1.05. Prevalence of hypertension, CKD and overweight were 21.5, 11.7 and 20.5%, respectively. The median daily salt intake was 11.7 g with interquartile range of 14.8 g. Only 11.25% of participants consumed less than 5 g/day. After multivariate analysis, high salt intake was associated with age > 60 years, overweight and CKD. However, gender and hypertension were not significantly associated with salt intake. Industrial broths (91.5%) and bread (85%) represented the main sources of dietary salt. CONCLUSION: This study revealed high levels of daily salt intake contrasting with low potassium intakes in the majority of participants. Participants with CKD, overweight and age > 60 years presented higher salt consumption. Stategies to reduce salt consumption are urgently needed to reduce burden of CKD in rural Senegalese populations.


Subject(s)
Hypertension , Renal Insufficiency, Chronic , Rural Population , Sodium Chloride, Dietary , Humans , Female , Male , Cross-Sectional Studies , Senegal/epidemiology , Middle Aged , Adult , Sodium Chloride, Dietary/administration & dosage , Renal Insufficiency, Chronic/epidemiology , Hypertension/epidemiology , Hypertension/etiology , Rural Population/statistics & numerical data , Risk Factors , Prevalence , Overweight/epidemiology , Glomerular Filtration Rate , Aged , Kidney/physiopathology , Diet/statistics & numerical data
15.
Sante Publique ; 36(2): 119-131, 2024.
Article in French | MEDLINE | ID: mdl-38834518

ABSTRACT

In Senegal, violent delinquency and illicit drug use are on the increase. This study focuses on two distinct groups: drug users (DUs) undergoing rehabilitation and violent ex-offenders (VEs). The methodology adopted includes a quantitative survey of the general population (n=1009), followed by a qualitative survey of fifteen participants, including eight DUs undergoing treatment at the Centre de prise en charge intégrée des addictions de Dakar (CEPIAD) (Integrated Addictions Management Center of Dakar) and the Centre Jacques Chirac de Thiaroye, and seven former VEs from the Grand Yoff district. This neighborhood, known for its violence, is juxtaposed with the Grand Yoff social housing estate, a residential area also affected by outbreaks of violence. This study aims to establish the link(s) between drug use and criminal violence by analyzing the life stories of young adults who have managed to leave drug use and delinquency behind. It then looks to identify the determinants of resilience in certain young people. The study revealed delinquent violence among young people does not systematically result from drug use. Rather, drug use is a factor conducive to violence. The links between drugs and violence depend on individual predisposition, the type of drugs used, and the level of addiction. Resilience results from a web of individual, sociocultural, and environmental factors. It is not static, but rather the result of a series of successes, failures, and even relapses.


Subject(s)
Substance-Related Disorders , Violence , Humans , Senegal , Male , Adult , Substance-Related Disorders/epidemiology , Female , Young Adult , Resilience, Psychological , Adolescent , Drug Users/psychology , Criminals , Middle Aged
16.
Ann N Y Acad Sci ; 1537(1): 82-97, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38922959

ABSTRACT

Micronutrient interventions can reduce child mortality. By applying Micronutrient Intervention Modeling methods in Senegal, Burkina Faso, and Nigeria, we estimated the impacts of bouillon fortification on apparent dietary adequacy of vitamin A and zinc among children and folate among women. We then used the Lives Saved Tool to predict the impacts of bouillon fortification with ranges of vitamin A, zinc, and folic acid concentrations on lives saved among children 6-59 months of age. Fortification at 250 µg vitamin A/g and 120 µg folic acid/g was predicted to substantially reduce vitamin A- and folate-attributable deaths: 65% for vitamin A and 92% for folate (Senegal), 36% for vitamin A and 74% for folate (Burkina Faso), and >95% for both (Nigeria). Zinc fortification at 5 mg/g would avert 48% (Senegal), 31% (Burkina Faso), and 63% (Nigeria) of zinc-attributable deaths. The addition of all three nutrients at 30% of Codex nutrient reference values in 2.5 g bouillon was predicted to save an annual average of 293 child lives in Senegal (3.5% of deaths from all causes among children 6-59 months of age), 933 (2.1%) in Burkina Faso, and 18,362 (3.7%) in Nigeria. These results, along with evidence on program feasibility and costs, can help inform fortification program design discussions.


Subject(s)
Child Mortality , Food, Fortified , Micronutrients , Zinc , Humans , Burkina Faso/epidemiology , Senegal/epidemiology , Infant , Nigeria/epidemiology , Micronutrients/administration & dosage , Child Mortality/trends , Child, Preschool , Female , Zinc/administration & dosage , Folic Acid/administration & dosage , Male , Vitamin A/administration & dosage
18.
Med Trop Sante Int ; 4(1)2024 03 31.
Article in French | MEDLINE | ID: mdl-38846122

ABSTRACT

Objective: To determine the etiology of cervico-vaginal infections by cytobacteriology and the efficacy of qPCR for the diagnosis of sensitive strains such as Streptococcus agalactiae, Borrelia crocidurae, Chlamydia trachomatis, Neisseria gonorrhoeae and Treponema pallidum. Methodology: This prospective cross-sectional study was performed between January and September 2021 in 346 women who were examined for cervico-vaginal infection at the Hôpital Principal de Dakar (HPD). Cytobacteriological (direct examination, agar culture) and molecular analyses were performed. Results: Vaginal flora imbalances predominated, with a rate of 72.3%. The proportion of type IV vaginal flora was 46.5%. Of the 199 germs isolated, Candida albicans (25.1%), Ureaplasma urealyticum (17.6%), S. agalactiae (7.8%), Gardnerella vaginalis (6.6%) and nonalbicans Candida (5.5%) were the main pathogens responsible for cervico-vaginal infections in patients. Among women tested for mycoplasma, U. urealyticum was identified in 43.3% of patients. Among those tested for C. trachomatis, the proportion of infected women was low (4%). The prevalence of C. albicans was higher in pregnant women (38.3%) than in nonpregnant women (19.2%). S. agalactiae strains showed high resistance to certain beta-lactam antibiotics (pristinamycin 100%, gentamycin 100%, ampicillin 92.5% and cefalotin 85.2%) and to a glycopeptide antibiotic (vancomycin 100%). The Staphylococcus aureus strain had good sensitivity to antibiotics except gentamycin (100%) and kanamycin (100%). The enterobacteria tested were all sensitive to phenicols, carbapenems, cephalosporins and aminoglycosides. However, E. coli showed high resistance to tetracycline. The different methods showed low prevalences of C. trachomatis and N. gonorrhoeae, so comparisons Test RapidChlamydia/qPCR for C. trachomatis and culture/qPCR for N. gonorrhoeae were not possible. For S. agalactiae, on the other hand, qPCR was more advantageous than culture. The χ2 test showed a significant difference (Yates χ2 = 33.77 and p = 1-7) for the diagnosis of S. agalactiae. S. agalactiae qPCR had a sensitivity of 40.7%, a specificity of 94%, and positive and negative predictive values of 36.7% and 94.9% respectively, as well as a kappa = 0.33. Conclusion: The methods applied enabled us to identify the pathogens that cause cervicovaginal infections. The results suggest that qPCR may be an alternative, at least for the diagnosis of S. agalactiae. However, culture remains indispensable for studying antibiotic sensitivity. In order to improve patient care, molecular techniques need to be integrated into the HPD testing toolbox. To broaden the repertoire of pathogens to be diagnosed by qPCR, targeted comparison studies will be needed to increase the probability of encountering infected individuals.


Subject(s)
Real-Time Polymerase Chain Reaction , Humans , Female , Senegal/epidemiology , Cross-Sectional Studies , Adult , Prospective Studies , Young Adult , Real-Time Polymerase Chain Reaction/methods , Middle Aged , Adolescent , Vaginitis/microbiology , Vaginitis/epidemiology , Vaginitis/diagnosis , Vaginitis/drug therapy
19.
Med Trop Sante Int ; 4(1)2024 03 31.
Article in French | MEDLINE | ID: mdl-38846121

ABSTRACT

Accidental ingestion of a foreign body into the gastrointestinal tract is not uncommon, however the development of hepatic abscesses secondary to digestive perforation by a foreign body is rare. We report the case of pyogenic hepatic abscesses secondary to gastric perforation by a fishbone complicated by acute peritonitis. A 53-year-old patient was admitted to our hospital with the main complaints: diffuse abdominal pain with vomiting in a context of fever and physical asthenia. A painful febrile hepatomegaly with jaundice was objectified, as well as a non-specific biological inflammatory syndrome. An initial abdominopelvic CT scan revealed multifocal liver abscesses. Faced with the initial therapeutic failure associating parenteral antibiotic therapy and abscess drainage, a second abdominal CT scan identified a foreign body straddling the antropyloric wall and segment I of the liver.A xypho-pelvic midline laparotomy was performed with nearly 200 cc of peritoneal fluid coming out. A fishbone approximately 5 cm long was extracted by laparotomy, followed by gastric closure with omentum, peritoneal cleansing and drainage. Symptomatic adjuvant treatment was initiated, including a proton pump inhibitor (Pantoprazole). He also benefited from transfusion support in the face of anemia. Antibiotic therapy was continued for a total of 2 weeks after surgery. The evolution was favorable with follow-up imaging at 3 months, showing complete resorption of the hepatic abscesses.


Subject(s)
Foreign Bodies , Liver Abscess, Pyogenic , Peritonitis , Humans , Middle Aged , Peritonitis/etiology , Male , Liver Abscess, Pyogenic/therapy , Foreign Bodies/complications , Foreign Bodies/surgery , Acute Disease , Senegal , Stomach/injuries , Stomach/diagnostic imaging
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