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Impact of Therapeutic Education on the Viral Load of HIV Infected Children and Adolescents on Antiretroviral Therapy at the Douala Laquintinie Hospital, Cameroon

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International Journal of Clinical Medicine 2019年第3期10卷 109-121页

作者： Calixte Ida Penda Anne-Cécile Zoung-Kanyi Bissek Serge Clotaire Bilong Loic-Ardin Boupda Cécile Okala Francis Atéba Ndongo grace dallé ngondi Else C. Moukoko Eboumbou Louis Richard Njock Olivier Koki Ndombo Clinical Sciences Department Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon Laquintinie Hospital Douala Douala Cameroon Faculty of Biomedical Sciences University of Yaoundé 1 Yaoundé Cameroon Division of Operational Research in Health Ministry of Public Health of Cameroon Yaoundé Cameroon National HIV Drug Resistance Surveillance and Prevention Working Group Yaoundé Cameroon Groupe Technique Central—CNLS Yaoundé Cameroon Biological Sciences Department Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon Clinical Biology Laboratory General Hospital Douala Cameroon Chirurgical Department Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon Chantal Biya Foundation Mother-Child Centre Yaoundé Cameroon

Introduction: One of the biggest challenges for HIV-infected adolescents on antiretroviral therapy (ART) is the long-term maintenance of viral suppression, which is the third 90% goal of UNAIDS. Therapeutic Education (TE), process of acquiring abilities and skills that help the patient to live optimally with his illness is one of the strategies that contribute to the achievement of viral suppression through the therapeutic adhesion contract and the follow-up of the patient. The aim of this study was to evaluate the impact of TE on the virologic response of children and adolescents aged 8 - 19 under ART and followed up at the Laquintinie Hospital of Douala (LHD). Method: A cross-sectional study was conducted at the Pediatric Unit of the HIV/AIDS Accredited Treatment Center (ATC) at LHD from February to May 2016. Children and adolescents aged 8 to 19 years on ART, followed in ATC/LHD whose parents had agreed to participate in the study, and who had achieved at least one viral load before and after initiation of TE, were recruited consecutively during routine medical follow-up. Data were collected from patients’ medical records and questionnaires administered to study participants. Results: A total of 198 children and adolescents were included in this study with an average age of 14 years (±3). In this study population, 86.1% of children aged 8 - 10 years had acquired knowledge of the importance of taking medications, 95.4% and 97.3% of adolescents aged 11 - 14 years and 15 - 19 years had knowledge of medication schedules respectively. Among children and adolescents with undetectable viral load prior to initiation of TE, 76.5% maintained an undetectable viral load after initiation of TE. In addition, 72.3% of those whose viral load was detectable before initiation of TE had acquired an undetectable or decreasing viral load after initiation of TE. The only exposure factor significantly associated with maintaining undetectable viral load after initiation of TE was

关键词： HIV Children Adolescents Therapeutic Education Cameroon

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Antibiotics Susceptibility Profile of Staphylococcus aureus Clinical Isolates Collected in Hospitals in the City of Douala (Cameroon)

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Journal of Biosciences and Medicines 2022年第8期10卷 188-200页

作者： Jean Pierre Nda Mefo’o Yanne Sabekob grace dalle ngondi Emmanuel Roddy Mengue Elodie Ngo Malabo Nancy Handa Guy Pascal Ngaba Dieudonné Adiogo Cécile Okalla Ebongue Laboratory of Clinical Biology Douala General Hospital Douala Cameroon Department of Biological Sciences Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon Laboratory Laquintinie Hospital Douala Cameroon Kansas City University of Medicine and Biosciences Kansas City MO USA Laboratory Unit of the Gyneco-Obstetric Douala Pediatric Hospital Douala Cameroon

Introduction: Staphylococcus aureus is one of the most important agents involved in community and hospital-acquired infections. Due to the multi-drug resistance of strains to antibiotics, treatment to eradicate it is becoming more difficult and poses a global public health problem. Methodology: This was a cross-sectional study conducted from March to August 2020 in hospitals in the city of Douala, including all S. aureus isolates from diagnostic samples. Strain identification and antibiotic susceptibility testing were performed using the Vitek2 CompactTM (BioMerieux). Results: During the study period, 136 non-repetitive S. aureus strains were identified with a high frequency of methicillin-resistant S. aureus of 78.7%. The majority of the strains originated from the Douala General Hospital (66.9%) and was most frequently isolated from blood culture samples (55.1%). The study of biochemical characteristics showed that most of the strains identified had between 87% and 99% homology with the reference strain. The most active antibiotics were Quinupristin/Dalfopristin (94.2%), Linezolid (87.8%) and Vancomycin (84.2%). Methicillin resistance was associated with decreased susceptibility of S. aureus to other antibiotics such as Gentamycin (44.9%), Erythromycin (38.2%), Tetracycline (38.3%), Trimethoprim (21.4%), Ciprofloxacin (19.1%) and Levofloxacin (24.0%). Inducible MLSb and constitutive resistance phenotypes were identified with 26.7% and 22.8% respectively. Conclusion: The sensitivity of S. aureus strains differs from one antibiotic family to another, and remains good for molecules that are not available in our context. The high frequency of Methicillin-Resistant S. aureus shows the continuous progression of multi-resistant strains of S. aureus and their decreased sensitivity to usual antibiotics becomes more and more alarming.

关键词： Staphylococcus aureus Multidrug Resistance MRSA Douala

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Antibiotics Resistance of Urogenital Mycoplasma in Sexually Active Women Attending Gynecologic Consultation in Douala (Cameroon)

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Advances in Microbiology 2023年第12期13卷 559-570页

作者： Jean Pierre Nda Mefo’o Rosa Fetue Notio Fulbert Mangala Nkwele grace dalle ngondi Emmanuel Roddy Mengue Elodie Ngo Malabo Charlotte Tchente Nguefack Cécile Okalla Ebongue Théophile Nana Njamen Laboratory of Clinical Biology Douala General Hospital Douala Cameroon Department of Biological Sciences Faculty of Medicine and Pharmaceutical Sciences The University of Douala Douala Cameroon Department of Surgery and Specialties Faculty of Medicine and Pharmaceutical Sciences The University of Douala Douala Cameroon Mother and Child Department Douala General Hospital Douala Cameroon Department of Obstetrics and Gynecology Faculty of Health Sciences University of Buea Buea Cameroon

Introduction: Mycoplasmas are bacteria commonly found in the commensal flora of humans and can occasionally be pathogenic. The population and the geographical area determine their susceptibility to various antibiotics. Methodology: We carried out a cross-sectional study from January to June 2022 at the Douala General Hospital. All women who were sexually active and willing to participate were included. Endo-cervical swabbing was used to collect the samples. Culture and antibiotic susceptibility testing were performed in a liquid medium using Mycoplasma-SystemPlus Gallery (Liofilchem). All samples that degraded urea (threshold > 103 for Ureaplasma urealyticum) and arginine (threshold > 104 for Mycoplasma hominis) were deemed positive. Results: A total of 107 women with a median age of 33 ± 8.3 years and a predominance of 30-40 years (41.1%) were included. The frequency of mycoplasma infection was 73.8% with 34.1%, 11.4% and 54.4% for Ureaplasma urealyticum, Mycoplasma hominis and co-infection respectively. Resistance rates to Minocycline were low, 1.3% for Ureaplasma urealyticum and 3.7% for co-infection;for Pefloxacin the resistance rates were 3.7% (Ureaplasma urealyticum, Mycoplasma hominis) and 22.8% (co-infection). Ureaplasma urealyticum had a resistance rate of 3.7% for Erythromycin, 1.3% for Clarithromycin and 5% for Azithromycin. There was no significant correlation between risk factors and infection. Vaginal cleansing and the development of resistance in mycoplasma infection were found to be significantly correlated (OR = 6.915 [1.52 - 31.55];(p = 0.013)). Conclusion: Minocycline was the most active antibiotic and Ureaplasma urealyticum was the species with the lowest rate of resistance. Antibiotic resistance was more common in co-infected people than mono-infected. Antibiotic resistance was independently correlated with vaginal douching.

关键词： Urogenital Mycoplasma Sexually Active Women Douala Cameroon

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Detection of the Production of Klebsiella Pneumoniae Carbapenemase, New Delhi Metallo-Beta-Lactamase and Oxacillinase-48-Type Carbapenemases by Gram-Negative Bacilli in Resource-Limited Setting

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Advances in Microbiology 2021年第10期11卷 579-590页

作者： Cecile Okalla Ebongue Gabin Gaël Simo Jean Pierre Nda Mefo’o grace dalle ngondi Emmanuel Roddy Mengue Guy Pascal Ngaba Dieudonne Adiogo Laboratory of Clinical Biology General Hospital Douala Cameroon Department of Biological Sciences Faculty of Medicine and Pharmaceutical Sciences Douala Cameroon Laboratory Unit Laquintinie Hospital Douala Cameroon Laboratory Unit Gyneco-Obstetric and Pediatric Hospital Douala Cameroon

Background: The increasing resistance of bacteria to various antibiotics is a worldwide public health issue. Carbapenems that have elicited great hope in treating infections caused by multidrug-resistant germs have seen their efficacy narrowed over time with the emergence of other novel resistance mechanisms, notably the production of Carbapenemases. Methods: A prospective cross-sectional study was conducted from May 2017 to May 2018 in Douala (Cameroon) to detect carbapenemase-producing Gram-negative bacilli. Isolated strains were identified using the Vitek2TM system. Antimicrobial susceptibility testing was performed using the Kirby-Bauer disk diffusion method on agar plates with 20 selected commercially available antibiotic discs. The bacterial strains were tested for the production of three Carbapenemases (OXA-48, NDM, KPC), using an immuno-chromatographic technique, with the “RESIST-3 O.K.N. K-SeT” rapid detection kit. Results: During the study period, 1687 strains of Gram-negative bacilli were isolated in selected laboratories with a total of 200 multi-resistant strains identified (11.9%). Among the multi-resistant strains, E. coli was the species most represented in Enterobacteriaceae (27.5%) followed by K. pneumoniae (15.5%) and the non-fermenting Gram-negative bacilli were predominantly P. aeruginosa (20.5%). These strains mainly came from urine and pus, i.e. 41% and 32% respectively. Thirty-two (16%) strains produced one of the Carbapenemases with a higher frequency at the General Hospital (84%). NDM-type carbapenemase was the most frequently identified (8.5%), OXA-48 type 7.5%, and no KPC production was observed. Among the Enterobacteriaceae 22.9% produced Carbapenemases and only 5.1% of the non-fermenting bacilli produced these enzymes. The isolates strains were completely resistant to all antibiotics except Amikacin and Fosfomycin. The strains producing the NDM-type carbapenemase

关键词： Carbapenemases Gram-Negative Bacilli Multidrug-Resistance Cameroon

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