Antibiotic susceptibility patterns of Staphylococcus aureus strains isolated at the Yaounde Central Hospital, Cameroon: a retro prospective study

Kengne, Michel; Fotsing, Olivier; Ndomgue, Therese; Nwobegahay, Julius

doi:10.11604/pamj.2019.32.103.15743

Cited by 13 publications

(26 citation statements)

References 27 publications

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“…Antimicrobial susceptibility testing showed high resistance to penicillin, cotrimoxazole, tetracycline, ofloxacine and gentamicine. A similar report from Nepal also showed inefficacy of these antibiotics for treatment of local isolates [54]. Meanwhile rifampicin, fusidic acid, lincomycin and minocycline showed efficacy against our isolates.…”

Section: Plos Onesupporting

confidence: 75%

High prevalence of Panton-Valentine leukocidin positive, multidrug resistant, Methicillin-resistant Staphylococcus aureus strains circulating among clinical setups in Adamawa and Far North regions of Cameroon

et al. 2022

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Staphylococcus aureus (S. aureus) is one of the earliest pathogens involved in human infections, responsible for a large variety of pathologies. Methicillin was the first antibiotic used to treat infections due to S. aureus but infections due to Methicillin resistant Staphylococcus aureus (MRSA) originated from hospital settings. Later, severe infections due to MRSA without any contact with the hospital environment or health care workers arose. Prevalence of MRSA has shown an alarming increase worldover including Cameroon. This Cross-sectional study was designed to evaluate the occurrence of MRSA infections in five different, most frequented Hospitals in northern Cameroon. Socio demographic data was recorded through questionnaire and different clinical specimens were collected for bacterial isolation. Identification of S. aureus was confirmed via 16s rRNA amplification using S. aureus specific primers. Molecular characterisation was performed through mecA gene, Luk PV gene screening and SCCmec typing. A total of 380 S. aureus clinical isolates were obtained of which 202 (53.2%) were nonduplicate multidrug resistant isolates containing, 45.5% MRSA. Higher number of MRSA was isolated from pus (30.4%) followed by blood culture (18.5%), and urine (17.4%). Patients aged 15 to 30 years presented high prevalence of MRSA (30.4%). Majority isolates (97.8%) carried the mecA gene, PVL toxin screening indicated 53.3% isolates carried the lukPV gene. Based on PVL detection and clinical history, CA-MRSA represented 53.3% of isolates. SCCmec typing showed that the Type IV was most prevalent (29.3%), followed by type I (23.9%). Amongst MRSA isolates high resistance to penicillin (91.1%), cotrimoxazole (86.7%), tetracycline (72.2%), and ofloxacin (70.0%) was detected. Meanwhile, rifampicin, fusidic acid, lincomycin and minocycline presented high efficacy in bacterial control. This study revealed a high prevalence of MRSA among infections due to S. aureus in Northern Cameroon. All MRSA recorded were multidrug resistant and the prevalence of CA MRSA are subsequently increasing, among population.

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Section: Plos Onesupporting

confidence: 75%

High prevalence of Panton-Valentine leukocidin positive, multidrug resistant, Methicillin-resistant Staphylococcus aureus strains circulating among clinical setups in Adamawa and Far North regions of Cameroon

et al. 2022

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“…Others authors obtained same range, Garoy in Eritrea [36] and Ebob in Douala [20]. [41]. However, rifampicin, fusidic acid, lincomycin, minocyclin showed high rate of sensitivity, many authors also obtained the same results.…”

Section: Antibiotic Susceptibility Testingmentioning

confidence: 78%

Antibiotic Resistance Pattern of Staphylococcus aureus and Associated Risk Factors in the Adamaoua and Far North Regions of Cameroon

Mohamadou

Essama

Akwah

et al. 2020

MRJI

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Background: Infections due to Staphylococcus aureus (S. aureus) have been recognized as an important public health problem worldwide. Resistant S. aureus strains emerged and its prevalence has been on the rise. Many risk factors were identified as comorbidities and impact seriously the health state of infected individual by resistant Staphylococcus aureus. We focus our study on two of these risk factors (HIV-infection and diabetes) which may constitute high potential health conditions for emergence of resistant S. aureus strains. Methods: A Cross sectional study was conducted during 19 months in five laboratories in the northern Cameroon. Collection of clinical samples from nine different types of specimens and first identifications were conducted in the various sites of study. Selected strains were transported in Yaoundé using standard procedure. Identification and drug susceptibility testing was performed using the disk diffusion method. Questionnaires were submitted to all the participants after an approved written and oral consent. HIV and Glycemia test were carried out on each patient in case their status was not known. During the study, 380 strains of Staphylococcus aureus were identified. Antimicrobial test was achieved using 16 different antibiotics. Results: Result showed that 202/380 (53.2 %) of Staphylococcus aureus were resistant to at least three antibiotics (multiresistant) from three different families. Multiresistant strains displayed high resistance to cotrimoxal (76.7 %) followed by penicillin (66.8 %), tetracyclin (57.4 %) and oxacillin (51.5%). While high rate of sensitivity were obtained for rifampicin (78.7 %), fusidic acid (65.8 %), lincomycin (60.5 %) and minocyclin (58.9 %). Few participants 8.9 % were tested HIV positive and 7.9% were living with diabetes. Strains isolated from participants living with these diseases presented higher rate of resistance to antibiotics. Conclusion: The rate of multiresistant Staphylococcus aureus are constantly in progress in northern Cameroon, most of the strains originated from community. These strains exhibited high resistance level to cotrimoxazol while displaying high sensitivity to rifampicine. People living with chronic diseases presented high resistance to antibiotic recommended for S. aureus infection treatment.

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“…Several studies have shown foods of animal origin to be an important reservoir of S. aureus [24][25][26][27][28], and there are increasing reports on foodborne disease outbreaks linked to S. aureus. In Cameroon, most reports on S. aureus are mainly from clinical samples and hospital environment [29][30][31][32]. Data on this pathogen as a food safety concern in Cameroon are therefore insufficient.…”

Section: Introductionmentioning

confidence: 99%

Pathogenic Potential and Antimicrobial Resistance Profile of Staphylococcus aureus in Milk and Beef from the Northwest and Southwest Regions of Cameroon

Bissong

Tahnteng

Ateba

et al. 2020

BioMed Research International

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Staphylococcus aureus is a major foodborne pathogen and commensal of the skin and mucous membranes of animals and humans. Its virulence relies on the production of a variety of toxins resistant to denaturing conditions. Increasing reports of S. aureus food poisoning and contamination of foods of animal origin elsewhere necessitates the investigation of these foods in Cameroon, to implement safety measures. This cross-sectional study evaluated S. aureus contamination in milk and beef in the Northwest and Southwest Regions of Cameroon, where cow milk is usually not pasteurized before consumption, and beef is the main source of protein. The distribution of antibiotic-resistant isolates and those with enterotoxin-producing potential was also investigated to provide data of public health and food safety benefit. S. aureus was isolated from 39 raw milk and 250 beef samples by standard methods. Confirmation of isolates was by PCR to detect the nuc gene. S. aureus was investigated for classical staphylococcal enterotoxin (SE) genes (sea, seb, sec, sed, and see) by PCR. Their susceptibility to 9 antibiotics was tested by the disk diffusion method. The chi-square test was used to compare the contamination of samples, antibiotic resistance, and the distribution of SE genes. S. aureus was isolated from 11.1% of samples. Contamination was higher in milk (48%) than in beef (5.2%) ( P < 0.001 ). The sea was the most frequently (90%) harboured gene. A large proportion of isolates (88%) harboured more than one virulence gene. Isolates were generally resistant to erythromycin (82%), vancomycin (80%), tetracycline (76%), and oxacillin (74%). Multidrug resistance (MDR) was common (92%). Milk and beef samples in study area were contaminated with MDR enterotoxigenic S. aureus strains and may constitute a potential hazard to consumers. Thus, the need for implementation of proper hygienic measures when handling these products and pasteurization of milk cannot be overemphasized.

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Antibiotic susceptibility patterns of Staphylococcus aureus strains isolated at the Yaounde Central Hospital, Cameroon: a retro prospective study

Cited by 13 publications

References 27 publications

High prevalence of Panton-Valentine leukocidin positive, multidrug resistant, Methicillin-resistant Staphylococcus aureus strains circulating among clinical setups in Adamawa and Far North regions of Cameroon

High prevalence of Panton-Valentine leukocidin positive, multidrug resistant, Methicillin-resistant Staphylococcus aureus strains circulating among clinical setups in Adamawa and Far North regions of Cameroon

Antibiotic Resistance Pattern of Staphylococcus aureus and Associated Risk Factors in the Adamaoua and Far North Regions of Cameroon

Pathogenic Potential and Antimicrobial Resistance Profile of Staphylococcus aureus in Milk and Beef from the Northwest and Southwest Regions of Cameroon

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