16 results on '"Diouf, Fatou Samba"'
Search Results
2. Influenza at the 2021 Grand Magal of Touba and possible spread to rural villages in South Senegal - a genomic epidemiological study
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Goumballa, Ndiaw, primary, Diouf, Fatou Samba, additional, Beye, Mamadou, additional, Sambou, Masse, additional, Bassène, Hubert, additional, Dieng, Mamadou, additional, Aïdara, Adama, additional, Targa, Lorlane L.E., additional, Colson, Philippe, additional, Gautret, Philippe, additional, and Sokhna, Cheikh, additional
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- 2024
- Full Text
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3. Collinsella ihumii sp. nov., a new anaerobic bacterium isolated from human stool
- Author
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Ben Khedher, Mariem, Diouf, Fatou Samba, Lo, Cheikh Ibrahima, Alibar, Stéphane, Durand, Guillaume, Raoult, Didier, Fournier, Pierre-Edouard, and Fenollar, Florence
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- 2021
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4. A review of the literature of Listeria monocytogenes in Africa highlights breast milk as an overlooked human source
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Sarr, Marièma, primary, Alou, Maryam Tidjani, additional, Padane, Abdou, additional, Diouf, Fatou Samba, additional, Beye, Mamadou, additional, Sokhna, Cheikh, additional, Fenollar, Florence, additional, Mboup, Souleymane, additional, Raoult, Didier, additional, and Million, Matthieu, additional
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- 2023
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5. Influence of Microbiota on Clinical Expressions of Respiratory Viral Infections.
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Diouf, Fatou Samba, Alou, Maryam Tidjani, Million, Mathieu, Diatta, Georges, Goumballa, Ndiaw, Ndiaye, Dame, Bassene, Hubert, Dubourg, Gregory, Raoult, Didier, Sokhna, Cheikh, and Lagier, Jean-Christophe
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- 2024
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6. A review of the literature of Listeria monocytogenes in Africa highlights breast milk as an overlooked human source.
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Sarr, Marièma, Alou, Maryam Tidjani, Padane, Abdou, Diouf, Fatou Samba, Beye, Mamadou, Sokhna, Cheikh, Fenollar, Florence, Mboup, Souleymane, Raoult, Didier, and Million, Matthieu
- Subjects
LISTERIA monocytogenes ,LITERATURE reviews ,BREAST milk ,GLOBAL burden of disease ,GREY literature ,ENVIRONMENTAL sampling - Abstract
According to the latest WHO estimates (2015) of the global burden of foodborne diseases, Listeria monocytogenes is responsible for one of the most serious foodborne infections and commonly results in severe clinical outcomes. The 2013 French MONALISA prospective cohort identified that women born in Africa has a 3-fold increase in the risk of maternal neonatal listeriosis. One of the largest L. monocytogenes outbreaks occurred in South Africa in 2017-2018 with over 1,000 cases. Moreover, recent findings identified L. monocytogenes in human breast milk in Mali and Senegal with its relative abundance positively correlated with severe acute malnutrition. These observations suggest that the carriage of L. monocytogenes in Africa should be further explored, starting with the existing literature. For that purpose, we searched the peer-reviewed and grey literature published dating back to 1926 to date using six databases. Ultimately, 225 articles were included in this review. We highlighted that L. monocytogenes is detected in various sample types including environmental samples, food samples as well as animal and human samples. These studies were mostly conducted in five east African countries, four west African countries, four north African countries, and two Southern African countries. Moreover, only ~0.2% of the Listeria monocytogenes genomes available on NCBI were obtained from African samples, contracted with its detection. The pangenome resulting from the African Listeria monocytogenes samples revealed three clusters including two from South-African strains as well as one consisting of the strains isolated from breast milk in Mali and Senegal and, a vaginal post-miscarriage sample. This suggests there was a clonal complex circulating in Mali and Senegal. As this clone has not been associated to infections, further studies should be conducted to confirm its circulation in the region and explore its association with foodborne infections. Moreover, it is apparent that more resources should be allocated to the detection of L. monocytogenes as only 15/54 countries have reported its detection in the literature. It seems paramount to map the presence and carriage of L. monocytogenes in all African countries to prevent listeriosis outbreaks and the related miscarriages and confirm its association with severe acute malnutrition. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Ornithodoros sonrai Soft Ticks and Associated Bacteria in Senegal
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Ndiaye, El Hadji Ibrahima, primary, Diarra, Adama Zan, additional, Diouf, Fatou Samba, additional, Bouganali, Charles, additional, Almeras, Lionel, additional, Sokhna, Cheikh, additional, Diatta, Georges, additional, and Parola, Philippe, additional
- Published
- 2023
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8. Description of Streptococcus thalassemiae sp. nov., a Bacterium Isolated from Human Blood
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Diouf, Fatou Samba, primary, Beye, Mamadou, additional, Gaye, Mapenda, additional, Mbaye, Babacar, additional, Alibar, Stephane, additional, Sarr, Mariema, additional, Dubourg, Gregory, additional, Lagier, Jean-Christophe, additional, Sokhna, Cheikh, additional, Fenollar, Florence, additional, Fournier, Pierre-Edouard, additional, and Lo, Cheikh Ibrahima, additional
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- 2023
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9. PCR investigation of infections in patients consulting at a healthcare centre over a four-year period during the Grand Magal of Touba
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Ndiaw Goumballa, Masse Sambou, Diouf Fatou Samba, Hubert Bassene, Marielle Bedotto, Adama Aidara, Mamadou Dieng, Van Thuan Hoang, Philippe Parola, Cheikh Sokhna, Philippe Gautret, Vecteurs - Infections tropicales et méditerranéennes (VITROME), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut de Recherche Biomédicale des Armées [Brétigny-sur-Orge] (IRBA), Institut Hospitalier Universitaire Méditerranée Infection (IHU Marseille), Maladies infectieuses persistantes et émergentes en Afrique de l’Ouest [Dakar, Sénégal] (Equipe 3 - VITROME), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut de Recherche Biomédicale des Armées [Brétigny-sur-Orge] (IRBA)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut de Recherche Biomédicale des Armées [Brétigny-sur-Orge] (IRBA), Microbes évolution phylogénie et infections (MEPHI), and Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)
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Infectious Diseases ,[SDV]Life Sciences [q-bio] ,Public Health, Environmental and Occupational Health - Abstract
Respiratory and gastrointestinal symptoms and febrile illness are the most common complaints among ill pilgrims attending the Grand Magal of Touba (GMT) in Senegal.Patients presenting with respiratory or gastrointestinal symptoms or febrile systemic illnesses were recruited between 2018 and 2021 at a healthcare centre close to Touba. Respiratory, gastrointestinal and blood samples were tested for potential pathogens using qPCR.538 patients were included. 45.5% of these were female, with a median age of 17 years. Of the 326 samples collected from patients with a cough, 62.8% tested positive for at least one virus, including influenza viruses (33.1%). A high positivity rate of bacterial carriage was observed for Haemophilus influenzae (72.7%), Streptococcus pneumoniae (51.2%) and Moraxella catarrhalis (46.0%). Of the 95 samples collected from patients with diarrhoea, 71.3% were positive, with high rates of bacterial carriage, ranging from 4.2% for Tropheryma whipplei to 45.3% for Entero-pathogenic Escherichia coli. Of the 141 blood samples collected from patients with fever, 31.9% were positive including Plasmodium falciparum (21.3%), Borrelia sp. (5.7%) and dengue virus (5.0%).This study provides insight into the aetiology of most common infections at the GMT on which to base therapeutic options.
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- 2022
10. Risk factors for symptoms of infection and the acquisition of pathogens among pilgrims at the Grand Magal of Touba, 2017–2021
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Goumballa, Ndiaw, primary, Hoang, Van Thuan, additional, Diouf, Fatou Samba, additional, Mbaye, Babacar, additional, Parola, Philippe, additional, Sokhna, Cheikh, additional, and Gautret, Philippe, additional
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- 2022
- Full Text
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11. Tick-borne relapsing fever Borreliosis, a major public health problem overlooked in Senegal
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Ndiaye, El Hadji Ibrahima, Diouf, Fatou Samba, Ndiaye, Mady, Bassene, Hubert, Raoult, Didier, Sokhna, Cheikh, Parola, Philippe, Diatta, Georges, Vecteurs - Infections tropicales et méditerranéennes (VITROME), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut de Recherche Biomédicale des Armées (IRBA), Microbes évolution phylogénie et infections (MEPHI), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut de Recherche Biomédicale des Armées [Brétigny-sur-Orge] (IRBA), and Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)
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[SDV.MHEP.ME]Life Sciences [q-bio]/Human health and pathology/Emerging diseases ,Endemic Diseases ,Borrelia ,RC955-962 ,Relapsing Fever ,Rodentia ,Disease Vectors ,[SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology ,Senegal ,Blood ,[SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system ,[SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases ,RNA, Ribosomal, 16S ,Arctic medicine. Tropical medicine ,[SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology ,Animals ,Humans ,[SDV.MP.PAR]Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology ,Public Health ,Public aspects of medicine ,RA1-1270 ,Ornithodoros - Abstract
International audience; Background Tick-borne relapsing fever (TBRF) is the most common vector-borne bacterial disease in humans in West Africa. It is frequently clinically confused with malaria. Our study aims to determine, on a micro-geographic scale, the conditions for the maintenance and spread of TBRF in the Niakhar district of Senegal. Methodology/Principal findings We conducted clinical, entomological and animal reservoir investigations. Field surveys were carried out in order to investigate the presence of Ornithodoros sonrai vector ticks and to detect Borrelia spp. by qPCR using the 16S rRNA and glpQ genes, respectively. Micromammal trapping series were carried out inside homes and Borrelia infection was detected using brain tissue qPCR. Capillary blood samples from febrile patients were also tested for Borrelia using qPCR. More than 97% (40/41) of the villages surveyed were infested with O . sonrai ticks. The prevalence of Borrelia spp. infections in ticks was 13% (116/910), and over 73% (85/116) were positively confirmed as being Borrelia crocidurae . Borreliosis cases accounted for 12% (94/800) of episodes of fever and all age groups were infected, with children and young people between the ages of 8–14 and 22–28 being the most infected by the disease (16% and 18.4%). TBRF cases occurred in all seasons, with a peak in August. In two species of small rodents that were found to be infected ( Arvicanthis niloticus , Mus musculus ), the proportion of Borrelia infection was 17.5% (10/57), and the highest prevalence of infection (40.9%, 9/22) was observed in A . niloticus . Conclusion/Significance Our study indicates that TBRF is an endemic disease in the Niakhar district, where children and young people are the most infected. Arvicanthis niloticus and O . sonrai ticks are massively present and appear to be the main epidemiological reservoirs causing its extensive spread to humans.
- Published
- 2021
12. Respiratory infections among pilgrims at the Grand Magal of Touba: A comparative cohort controlled survey
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Goumballa, Ndiaw, primary, Hoang, Van Thuan, additional, Perières, Lauren, additional, Anh Ly, Tran Duc, additional, Gaye, Papa Mouhamadou, additional, Diouf, Fatou Samba, additional, Parola, Philippe, additional, Sokhna, Cheikh, additional, and Gautret, Philippe, additional
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- 2021
- Full Text
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13. Detection of Coxiella burnetii and Borrelia spp. DNA in Cutaneous Samples and in Household Dust in Rural Areas, Senegal
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Diouf, Fatou Samba, primary, Ndiaye, El Hadji Ibrahima, additional, Hammoud, Alissa, additional, Diamanka, Arfang, additional, Bassene, Hubert, additional, Ndiaye, Mady, additional, Mediannikov, Oleg, additional, Parola, Philippe, additional, Raoult, Didier, additional, Sokhna, Cheikh, additional, and Diatta, Georges, additional
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- 2021
- Full Text
- View/download PDF
14. Influence of Microbiota on Clinical Expressions of Respiratory Viral Infections.
- Author
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Diouf FS, Tidjani Alou M, Million M, Diatta G, Goumballa N, Ndiaye D, Bassene H, Dubourg G, Raoult D, Sokhna C, and Lagier JC
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- Humans, Infant, Cross-Sectional Studies, Nasopharynx, Bacteria genetics, Influenza, Human epidemiology, Viruses genetics, Respiratory Tract Infections, Microbiota
- Abstract
Respiratory infections, mainly due to viruses, are among the leading causes of worldwide morbidity and mortality. We investigated the prevalence of viruses and bacteria in a cross-sectional survey conducted in Dielmo, a village in rural Senegal with a population of 481 inhabitants. Nasopharyngeal sampling was performed in 50 symptomatic subjects and 101 asymptomatic subjects. Symptomatic subjects were defined as individuals presenting with clinical signs of respiratory infection, whereas asymptomatic subjects were recruited in the same households. The identification of pathogens was performed by polymerase chain reaction for 18 respiratory viruses and eight respiratory bacteria. The prevalence results for respiratory viruses detected in each study group demonstrated that 83.6% of symptomatic samples were positive for at least one respiratory virus, and 21.8% were detected in asymptomatic samples. Influenza A (P = 0.0001), metapneumovirus (P = 0.04), and enterovirus (P = 0.001) were significantly more prevalent in symptomatic patients. Overall, 82.0% of symptomatic subjects and 26.9% of asymptomatic subjects were positive for at least one respiratory bacterium. The most frequent pathogenic bacteria detected were Moraxella catarrhalis (56%) and Streptococcus pneumoniae (48.0%) among symptomatic individuals, whereas in asymptomatic subjects Corynebacterium propinquum was more prevalent (18%). A principal component analysis showed that parainfluenzas 2 and 4 were associated with asymptomatic subjects, whereas influenza A was associated with the presence of symptoms. Considering these results, a large epidemiological surveillance of the circulation of these respiratory pathogens in the general population should be conducted to provide a better understanding of their carriage and to potentially prevent epidemics.
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- 2023
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15. Detection of Coxiella burnetii and Borrelia spp. DNA in Cutaneous Samples and in Household Dust in Rural Areas, Senegal.
- Author
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Diouf FS, Ndiaye EHI, Hammoud A, Diamanka A, Bassene H, Ndiaye M, Mediannikov O, Parola P, Raoult D, Sokhna C, and Diatta G
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- Animals, DNA, Dust, Humans, Senegal epidemiology, Borrelia genetics, Coxiella burnetii genetics, Q Fever veterinary
- Abstract
Q fever and tick-borne borreliosis are two zoonotic diseases rarely diagnosed in Senegalese health facilities, particularly in rural areas. Our study aims to better understand the circulation of Coxiella burnetii and Borrelia spp. DNA on human skin and the domestic environment in rural areas. Cutaneous swabs were taken from febrile patients being treated for borreliosis and/or Q fever, the members of patients' households and control households in the Niakhar area. Dust samples were also collected from 90 households where 54 cases of borreliosis and Q fever were reported as well as from the households of members of control populations in Dielmo, Ndiop, and Niakhar. C. burnetii and Borrelia spp. DNA were detected by quantitative PCR in cutaneous swabs and dust samples targeting spacers IS 1111 _IS 30A and Bor 16S gene. Of 1365 persons tested, 76 were shown to carry C. burnetii , 13 Borrelia spp., and 6 were identified as carrying both C. burnetii and Borrelia spp. The prevalence of Borrelia spp. DNA in households was 16.7% in Dielmo, 6.7% in Ndiop, and 23.3% in all other villages in the Niakhar area, and the presence of C. burnetii in the same localities was 10%, 13.3% and 66.7%, respectively. Furthermore, C. burnetii genotyping identified the presence of Multispacer Sequence Typing group 6. These results revealed for the first time the carriage on the skin of C. burnetii and Borrelia spp. DNA in humans and its wide distribution across households. Our findings suggest that many populations are exposed to these diseases, with frequent contaminating cases of infectious origin arising from the domestic environment.
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- 2021
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16. Tick-borne relapsing fever Borreliosis, a major public health problem overlooked in Senegal.
- Author
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Ndiaye EHI, Diouf FS, Ndiaye M, Bassene H, Raoult D, Sokhna C, Parola P, and Diatta G
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- Animals, Borrelia classification, Borrelia genetics, Disease Vectors, Humans, Ornithodoros, Public Health, RNA, Ribosomal, 16S, Relapsing Fever epidemiology, Rodentia, Senegal epidemiology, Blood microbiology, Borrelia isolation & purification, Endemic Diseases, Relapsing Fever veterinary
- Abstract
Background: Tick-borne relapsing fever (TBRF) is the most common vector-borne bacterial disease in humans in West Africa. It is frequently clinically confused with malaria. Our study aims to determine, on a micro-geographic scale, the conditions for the maintenance and spread of TBRF in the Niakhar district of Senegal., Methodology/principal Findings: We conducted clinical, entomological and animal reservoir investigations. Field surveys were carried out in order to investigate the presence of Ornithodoros sonrai vector ticks and to detect Borrelia spp. by qPCR using the 16S rRNA and glpQ genes, respectively. Micromammal trapping series were carried out inside homes and Borrelia infection was detected using brain tissue qPCR. Capillary blood samples from febrile patients were also tested for Borrelia using qPCR. More than 97% (40/41) of the villages surveyed were infested with O. sonrai ticks. The prevalence of Borrelia spp. infections in ticks was 13% (116/910), and over 73% (85/116) were positively confirmed as being Borrelia crocidurae. Borreliosis cases accounted for 12% (94/800) of episodes of fever and all age groups were infected, with children and young people between the ages of 8-14 and 22-28 being the most infected by the disease (16% and 18.4%). TBRF cases occurred in all seasons, with a peak in August. In two species of small rodents that were found to be infected (Arvicanthis niloticus, Mus musculus), the proportion of Borrelia infection was 17.5% (10/57), and the highest prevalence of infection (40.9%, 9/22) was observed in A. niloticus., Conclusion/significance: Our study indicates that TBRF is an endemic disease in the Niakhar district, where children and young people are the most infected. Arvicanthis niloticus and O. sonrai ticks are massively present and appear to be the main epidemiological reservoirs causing its extensive spread to humans., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2021
- Full Text
- View/download PDF
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