Author

Oumar Ouchar Mahamat

Observed names: Mahamat, Oumar Ouchar, Ouchar Mahamat Oumar, Ouchar Oumar, Oumar M. Ouchar, Oumar O. Mahamat, Oumar Ouchar

Institution: University of N'Djamena

Observed institutions: University of N'Djamena, Centre National de la Recherche Scientifique, Université de Montpellier, Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle, Centre Hospitalier Universitaire de Montpellier, Hôpital Mère-Enfant, Hôpital Arnaud de Villeneuve, Institut de Recherche pour le Développement

ORCID: 0000-0002-9371-7566

Observed ORCID: 0000-0002-9371-7566

OpenAlex ID: A5001938579

Epidemiology and prevalence of extended-spectrum β-lactamase- and carbapenemase-producing Enterobacteriaceae in humans, animals and the environment in West and Central Africa

2020 · Oumar Ouchar Mahamat, Marie Kempf, et al. · International Journal of Antimicrobial Agents · 72

Fecal carriage of extended-spectrum β-lactamase-producing Enterobacteriaceae in hospital and community settings in Chad

2019 · Oumar Ouchar Mahamat, Abdelsalam Tidjani, et al. · Antimicrobial Resistance and Infection Control · 64

High prevalence and characterization of extended-spectrum ß-lactamase producing Enterobacteriaceae in Chadian hospitals

2019 · Oumar Ouchar Mahamat, Manon Lounnas, et al. · BMC Infectious Diseases · 62

Long-term maintenance of multidrug-resistant Escherichia coli carried by vampire bats and shared with livestock in Peru

2021 · Julio A. Benavides, Sylvain Godreuil, et al. · The Science of The Total Environment · 52

Prevalence and Molecular Characterization of Extended Spectrum β-Lactamase, Plasmid-Mediated Quinolone Resistance, and Carbapenemase-Producing Gram-Negative Bacilli in Burkina Faso

2020 · Soufiane Sanou, Abdoul Salam Ouedraogo, et al. · Microbial Drug Resistance · 21

Spread of NDM-5 and OXA-181 Carbapenemase-Producing Escherichia coli in Chad

2019 · Oumar Ouchar Mahamat, Manon Lounnas, et al. · Antimicrobial Agents and Chemotherapy · 18

Epidemiology and molecular characterization of Enterobacteriaceae producing extended-spectrum β-lactamase in intensive and extensive breeding animals in Burkina Faso

2022 · Soufiane SANOU, Abdoul Salam Ouedraogo, et al. · PAMJ - One Health · 13

Global high-risk clone of extended-spectrum β-lactamase (ESBL)-producing Klebsiella pneumoniae ST307 emerging in livestock in Peru

2021 · Danny Fuentes-Castillo, Carlos Shiva, et al. · International Journal of Antimicrobial Agents · 7

Biological Monitoring of Patients under First-Line Antituberculous Treatment in Chad from 2021 to 2022

2026 · Djamalladine Mahamat Doungous, Gildas Le Djimbaye Togde, et al. · Journal of Tuberculosis Research · 1

SARS-CoV-2 variants circulating in West and Central Africa between 2020 and 2022: A retrospective study

2026 · Guilbaud Romane, Almoustapha Issiaka Maiga, et al. · Journal of Infection and Public Health

Antibiotic Resistance of Enterobacteriaceae strains isolated from Urine at the Mother and Child University Hospital in N'Djamena, Chad

2026 · Mahamat Koulbou Abdoulaye, Hassan Mahamat Ali, et al. · International Journal of Current Microbiology and Applied Sciences

Isolation, Identification and Antibiotic Resistance Profile of Bacterial Strains Isolated from ‘Charmout’, a Dried Meat Sold in Chad

2025 · Ali Haroun Hissein, Edwige R. Somé Tiodjio, et al. · European Journal of Nutrition & Food Safety

Prévalence, dynamique de transmission et caractérisations phénotypiques et moléculaires des Entérobactéries productrices de β-lactamases à spectre élargi et de carbapénèmases au Tchad

2019 · Ouchar Mahamat Oumar

Additional file 1: of High prevalence and characterization of extended-spectrum ß-lactamase producing Enterobacteriaceae in Chadian hospitals

2019 · Mahamat, Oumar Ouchar, Lounnas, Manon, et al. · Figshare

Works count: 16

Citation count: 310

H-index: 7

I10-index: 7