Accueil / Santé Humaine
🧑‍⚕️

Santé Humaine

Travaux de recherche portant sur la santé et les pathologies humaines dans le cadre de l'approche One Health.

18 publications
🧑‍⚕️
Santé Humaine Maladies infectieuses et tropicales

Evaluation of knowledges and experiences of female genital schistosomiasis among healthcare workers in gynecology services in Abidjan, Côte d’Ivoire

Female genital schistosomiasis (FGS), a serious clinical form of urinary schistosomiasis, is widespread in sub-Saharan Africa but little-known in Côte d'Ivoire. The objective of this study was to assess practitioners' knowledge and experience of FGS in Abidjan. Data were collected using a questionnaire from March to October 2024 in healthcare centers in Abidjan among 281 healthcare workers in gynecology and obstetrics services. Only 57% of respondents identified Schistosoma haematobium as the causative agent, and the mode of transcutaneous contamination was known by very few (0.46%). Infertility and the risk of HIV infection were recognized as consequences of the disease by 20.1% and 9.6% of respondents, respectively. The pelvic examination to confirm FGS was known by only 11% of practitioners. For treatment, 66.7% of practitioners were aware of praziquantel. However, mass drug administration with praziquantel as a prevention method was not well-known (4.55%). Regarding experience with FGS, only 5% of respondents had ever suspected or experienced cases in their facility, and in 50% of these cases, the specific treatment used was praziquantel. This study highlights that FGS is not well-known by practitioners, and health professionals' lack of information about the disease can lead to poor treatment. Implementing training and awareness-raising programs for healthcare personnel will help prevent consequences for women in areas at risk of urinary schistosomiasis.

A
Dr ANGORA Kpongbo Etienne
👁 20 📥
🧑‍⚕️
Santé Humaine Maladies infectieuses et tropicales

Knowledge of patients and interest of Rapid Diagnostic Tests (RTDs) for uncomplicated malaria efficient management in community pharmacies of Côte d’Ivoire

For better management of malaria, WHO recommends early biological diagnosis for rapid treatment. In Côte d'Ivoire, due to difficulties associated with the use of microscopy in primary health care facilities, the biological diagnosis of malaria relies mainly on RDTs. Private pharmacies play an important role in the outpatient healthcare using RDTs to diagnose malaria. The aim of this study was to determine knowledge of patients and frequency of malaria cases using RDTs among patients in private pharmacies of Côte d’Ivoire. This cross-sectional survey was carried out from June to November 2020 among patients in three private pharmacies. Questionnaire was administered to individuals after informed consent to assess knowledge and collect sociodemographic data. Blood samples were taken from patients and the "ABON™ Plus Malaria P.f /Pan" RDT was performed on each sample. Of 450 subjects sampled, 33.3% (150/450) were RDTs positive. Plasmodium falciparum was the only species identified. The majority of the population (93.4%) revealed that the mode of transmission of malaria is mosquito bites. The main symptom of patients was fever (85.6%). The main ways of malaria prevention mentioned by patients were the use of insecticides (80%) and mosquito nets (73.5%). The majority of patients (74.6%) justified biological confirmation by detecting parasite in blood. This study shows the importance of confirming suspected cases of malaria in all contexts, in order to avoid misuse of anti-malarial drugs in pharmacies.

A
Dr ANGORA Kpongbo Etienne
👁 20 📥
🧑‍⚕️
Santé Humaine Maladies infectieuses et tropicales

Population genetic structure of Schistosoma haematobium and Schistosoma haematobium  Schistosoma bovis hybrids among school-aged children in Coˆ te d’Ivoire

While population genetics of Schistosoma haematobium have been investigated in West Africa, only scant data are available from Côte d ’ Ivoire. The purpose of this study was to analyze both genetic variability and genetic structure among S. haematobium populations and to quantify the frequency of S. haematobium  S. bovis hybrids in school-aged children in different parts of Côte d ’ Ivoire. Urine samples were subjected to a fi ltration method and examined microscopically for Schistosoma eggs in four sites in the western and southern parts of Côte d ’ Ivoire. A total of 2692 miracidia were collected individually and stored on Whatman  FTA cards. Of these, 2561 miracidia were suc- cessfully genotyped for species and hybrid identi fi cation using rapid diagnostic multiplex mitochondrial cox1 PCR and PCR Restriction Fragment Length Polymorphism (PCR-RFLP) analysis of the nuclear ITS2 region. From 2164 mira- cidia, 1966 (90.9%) were successfully genotyped using at least 10 nuclear microsatellite loci to investigate genetic diversity and population structure. Signi fi cant differences were found between sites in all genetic diversity indices and genotypic differentiation was observed between the site in the West and the three sites in the East. Analysis at the infrapopulation level revealed clustering of parasite genotypes within individual children, particularly in Duekoue (West) and Sikensi (East). Of the six possible cox1-ITS2 genetic pro fi les obtained from miracidia, S. bovis cox1  S. haematobium ITS2 (42.0%) was the most commonly observed in the populations. We identi fi ed only 15 miracidia (0.7%) with an S. bovis cox1  S. bovis ITS2 genotype. Our study provides new insights into the population genetics of S. haematobium and S. haematobium  S. bovis hybrids in humans in Côte d ’ Ivoire and we advocate for researching hybrid schistosomes in animals such as rodents and cattle in Côte d ’ Ivoire.

A
Dr ANGORA Kpongbo Etienne
👁 19 📥
🧑‍⚕️
Santé Humaine Résistance aux antimicrobiens

Prevalence of Beta-lactam Resistance Genes (Bla Genes) in Multidrug-Resistant Strains of Escherichia coli and Klebsiella pneumoniae Isolated from Infections at a University Hospital in Abidjan, Ivory Coast

Aim: The overall objective of this study was to characterise the bla genes responsible for beta-lactam resistance in two major strains of Enterobacteriaceae (Escherichia coli and Klebsiella pneumoniae) involved in bacterial infections and producing extended-spectrum beta-lactamases. Study Design: The resistance of Enterobacteriaceae to various classes of antibiotics in general, and to the beta-lactam class in particular, is showing a worrying trend in Côte d’Ivoire and around the world. This resistance is due to the production of extended-spectrum beta-lactamases (ESBLs) encoded by bla genes. Place and Duration of Study: This study was conducted from August 2022 to February 2024 in Abidjan (Ivory Coast) at the Pasteur Institute of Ivory Coast (IPCI), at the Cocody site, specifically within the Unit for Antibiotics, Natural Substances, and Surveillance of Microorganisms and Anti-Infective Agents (ASSURMI). Methodology: These strains were isolated from biological samples collected from various hospital departments. A total of 40 Enterobacteriaceae strains were identified using MALDI-TOF mass spectrometry (MS), and antibiotic susceptibility testing (antibiogram) was performed using the Mueller-Hinton agar diffusion method. Genes conferring resistance to Beta-lactams were detected using conventional PCR. Results: The strains studied were Escherichia coli (25) and Klebsiella pneumoniae (15). Seventy-five per cent of the strains were multidrug-resistant (Escherichia coli: 19/25; Klebsiella pneumoniae: 11/15). High resistance rates ranging from 52.63% to 100% to amoxicillin-clavulanic acid, aztreonam, and third-generation cephalosporins (cefepime, ceftriaxone, cefotaxime, cefixime) were observed. The Beta-lactam resistance genes detected were blaTEM, blaCTX-M-1, blaCTX-M-8, blaSHV, and blaCTX-M- with prevalence rates of 60%, 50%, 35%, 32.5%, and 7.5%, respectively. The co-expression rate of the resistance genes was 22,5 %, 17,5 %, 15 %, 12,5 %, 7,5 % et 2,5 %, respectively, for the associations blaTEM /blaCTX-M-8, blaTEM /blaCTX-M 1, blaSHV /blaCTX-M-1, blaSHV /blaCTX-M-8, blaTEM / blaSHV, blaTEM / blaSHV / blaCTX-M-1. Conclusion: This study revealed the presence and persistence of bla genes that have been under surveillance for many years, with an increase in the prevalence of certain genes.

K
Dr KONAN Kouadio Fernique
👁 26 📥
🧑‍⚕️
Santé Humaine

Antibiorésistance des souches d’Escherichia coli responsables d’infections urinaires collectées dans le réseau de surveillance de janvier à décembre 2024 au Centre National de Référence pour les Antibiotiques, Institut Pasteur de Côte d’Ivoire

Cette étude se propose de décrire les différents phénotypes de résistance des souches d’Escherichia coli afin de surveiller leur émergence. C’est une étude rétrospective de type descriptif de 472 souches d’Escherichia coli responsables d’infection urinaire sur une période allant de douze mois (Janvier-décembre 2024) au Centre National de Référence des antibiotiques de l’Institut Pasteur de Côte d’Ivoire. Au cours de cette étude, 1034 entérobactéries ont été isolées avec 472 souches non répétitives d’Escherichia coli, soit une proportion de 45,7%. Les hommes constituaient 51,8% et les femmes 48,2%, soit un sexe ratio de 1,07. Ces infections concernaient les patients hospitalisés (55%) ainsi que les communautaires (45%). Les adultes et les aînés étaient les plus touchés. L’antibiorésistance des souches d’Escherichia coli a révélé des taux de résistance à l’amoxicilline-acide clavulanique des souches hospitalières (69,6% contre 20,5% en communauté), à la pipéracilline (65,9% contre 58,5%), à la cefepime (64,5% contre 53,1%), à la ciprofloxacine (50,8% contre 45,8%), à la fosfomycine (20,9% contre 12,8%). L’amikacine, la nitrofurantoïne et l’imipenème ont enregistré des taux de résistance inferieurs à 10% dans les deux milieux. Un taux de 37,7% des souches d’Escherichia coli analysées produisaient des béta-lactamases à spectre élargi (BLSE). Les souches d'Escherichia coli productrices de BLSE présentaient des taux de résistance significatifs aux fluoroquinolones, atteignant 67,1% pour la ciprofloxacine et 48,3% pour la lévofloxacine. À l'inverse, elles conservaient une excellente sensibilité aux antibiotiques suivants : amikacine (92,7%), nitrofurantoïne (92,9%) et fosfomycine (82,3%). L'émergence de souches d'Escherichia coli uropathogènes résistantes aux antibiotiques restreint fortement l'arsenal thérapeutique disponible et souligne un enjeu crucial de santé publique. La surveillance régulière permet d'actualiser la stratégie thérapeutique, un élément fondamental pour contrer l'émergence et la dissémination de ces bactéries multirésistantes.

K
Dr KONAN Kouadio Fernique
👁 34 📥
🧑‍⚕️
Santé Humaine Résistance aux antimicrobiens

Antibiotic Resistance and Detection of Qnr Genes in isolated Uropathogenic Bacteria from Patients with Urinary Catheters

Antibiotic resistance in bacteria is a serious global public health problem. This study aimed to characterize antibiotic resistance genes in patients with urinary catheters. The study involved bacterial strain collection, antibiotic susceptibility testing, and molecular characterization for the detection of genes mediated by fluoroquinolone resistance. A total of 81 strains were collected. Strain distribution showed that Staphylococcus aureus was the most prevalent species (44.44%, n=36). Resistance profiling showed that coagulase-negative Staphylococcus strains (n=12) and Acinetobacter baumannii strains (n=5) expressed 100% resistance to cefoxitin and all tested beta-lactam antibiotics, respectively. Acinetobacter baumannii was resistant to ciprofloxacin (100%, n=5). However, amikacin showed greater activity against Pseudomonas aeruginosa (n=28) and Acinetobacter baumannii (n=5) strains, with 25% and 0% activity, respectively. Molecular gene characterization identified the qnr A, qnr B, and qnr S genes. The strains exhibited a high diversity of resistance genes, with 12.5%, 77.5%, and 60% observed in qnr A, qnr B, and qnr S, respectively. Co-expression of fluoroquinolone resistance genes was demonstrated in 30 strains. This study highlights the high prevalence of antibiotic-resistant bacteria and underscores the crucial role of microbiological and molecular surveillance of bacteria. The results highlight the need for rigorous antibiotic management to prevent the spread of resistant strains.

K
Dr KONAN Kouadio Fernique
👁 25 📥