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Phenotypic and molecular identification of antimicrobial resistance in Escherichia coli and Salmonella species isolated from apparently healthy broilers and zoo birds in Cameroon

*1Nelly, Z. Z., 2Oladele, O. A., 3,4Djim-Adjim-Ngana, K., 4Mouliom, M. M. M., 4,5Dah, I., and 6Josiane, N. M. C.

1Avian Medicine Program, Pan African University Life and Earth Sciences Institute (Including Health and Agriculture), Ibadan, Nigeria

2Department of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria

3Centre for Research on Health and Priority Pathologies, Institute of Medical Research and Medicinal Plant Studies, P. O. Box 13033, Yaounde, Cameroon

4Department of Veterinary Public Health, School of Veterinary Medicine and Sciences, University of Ngaoundere, P. O. Box 454 Ngaoundere, Cameroon

5National Veterinary Laboratory (LANAVET), P. O. Box 503 Garoua, Cameroon

6School of Veterinary Medicine and Sciences, The University of Ngaoundere, P. O. Box 454 Ngaoundere, Cameroon

*Correspondence to: zimbinelly93@gmail.com

Abstract:
Background: Knowledge of antimicrobial resistance patterns of bacteria in food and pet birds in our environment is a prerequisite to effective control of bacterial diseases in humans and other food animals. Particularly, there is a dearth of information on the prevalence of resistant bacteria in pet and zoo birds in Cameroon. This study was carried out to determine the antibiotic resistance profiles of Escherichia coli and Salmonella spp isolates in apparently healthy poultry and zoo birds in Cameroon and to phenotypically and genotypically identify extended-spectrum β-lactamases (ESBLs) isolates in the poultry and aviary birds. Continue reading “Phenotypic and molecular identification of antimicrobial resistance in Escherichia coli and Salmonella species isolated from apparently healthy broilers and zoo birds in Cameroon”

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Seroprevalence of Toxoplasmosis and associated risk factors in pregnant women at the Protestant Hospital, Mbouo-Bandjoun, Cameroon

1 Guemgne Todjom, F., 1 Makou Tsapi, E., 1 Gamago, G. A., 2 Vignoles, P., 3 Wabo Pone J., and 4* Djuikwo Teukeng, F. F.

1 Evangelical University of Cameroon, BP 127, Bandjoun, Cameroon
2 INSERM U 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, 2, rue du Docteur Raymond Marcland, 87025 Limoges, France
3 Research Unit of Biology and Applied Ecology, Faculty of Science, BP 067, Dschang, Cameroon
4 Faculty of Health Sciences, Université des Montagnes, BP 208, Bangangté, Cameroon
*Correspondence to: Dr. F. F. Djuikwo Teukeng (ffnouboue@yahoo.fr)

Abstract:
Background: Toxoplasmosis is a common worldwide infection caused by the protozoan Toxoplasma gondii. In Cameroon, several recent studies have reported high seroprevalence of this parasitosis in various hospitals (Douala, Limbe, Njinikom and Yaoundé). The aim of this study was to determine whether this high prevalence of toxoplasmosis might occur in other regions of the country.
Methodology: Serological tests by the indirect Enzyme Linked Immunosorbent Assay (ELISA) for IgG and IgM were carried out on 200 pregnant women (36 HIV-positive and 164 HIV-negative) at the Protestant Hospital of Mbouo-Bandjoun in western Cameroon to determine the presence of Toxoplasma gondii infection and to identify the risk factors associated with seropositivity of the subjects.
Results: The overall seroprevalence of anti-Toxoplasma antibodies was 45.5%. The prevalence rate was 80.5% in the HIV-positive group (47.2% IgG, 22.2% IgM and 11.1% IgG + IgM) and 37.8% in the HIV-negative group (25.6%, 9.7% and 2.4% respectively). Using a multivariate logistic regression analysis, the secondary level of educational, presence of HIV infection, and frequency of close contacts with cats were significantly associated with the prevalence of IgG and/or IgM antibodies.
Conclusion: Compared with previous reports of human toxoplasmosis in Cameroon, the prevalence in our study showed a decrease in the disease occurrence. Further studies are needed to determine whether this decrease is localised to our study or a general phenomenon currently affecting the country.

Keywords: Cameroon, IgG, IgM, pregnant women, seroprevalence, Toxoplasma gondii

Received January 9, 2019; Revised May 6, 2019; Accepted May 7, 2019

Copyright 2019 AJCEM Open Access. This article is licensed and distributed under the terms of the Creative Commons Attrition 4.0 International License (http://creativecommmons.org/licenses/by/4.0), which permits unrestricted use, distribution and reproduction in any medium, provided credit is given to the original author(s) and the source.

 

Séroprévalence de la toxoplasmose et facteurs de risque associés chez des femmes enceintes à l’Hôpital Protestant de Mbouo-Bandjoun, Cameroun

1 Guemgne Todjom, F., 1 Makou Tsapi, E., 1 Gamago, G. A., 2 Vignoles, P., 3 Wabo Pone J., and 4* Djuikwo Teukeng, F. F.

1 Université évangélique du Cameroun, BP 127, Bandjoun, Cameroun
2 INSERM U 1094, Neuroépidémiologie tropicale, Institut de neuroépidémiologie et de neurologie tropicale, 2, rue du Docteur Raymond Marcland, 87025 Limoges, France
3 Unité de recherche en biologie et écologie appliquée, Faculté des sciences, BP 067, Dschang, Cameroun
4 Faculté des sciences de la santé, Université des Montagnes, BP 208, Bangangté, Cameroun *Correspondance à: Dr. F. F. Djuikwo Teukeng (ffnouboue@yahoo.fr)

Résumé:
Contexte: La toxoplasmose est une infection répandue dans le monde entier et causée par le protozoaire Toxoplasma gondii. Au Cameroun, plusieurs études récentes ont signalé une forte séroprévalence de la parasitose dans divers hôpitaux (Douala, Limbé, Njinikom et Yaoundé). Le but de cette étude était de déterminer si cette forte prévalence de la toxoplasmose pouvait se produire dans d’autres régions du pays.
Méthodologie: Des tests sérologiques pour quantifier les IgG et IgM par dosage indirect immuno-enzymatique indirect selon la méthode ELISA ont été effectués sur 200 femmes enceintes (36 VIH-positives et 164 VIH-négatives) à l’hôpital protestant de Mbouo-Bandjoun, dans l’ouest du Cameroun, afin de déterminer la présence d’infectiona à T. gondii et d’identifier les facteurs de risque associés à la séropositivité des sujets.
Résultats: La séroprévalence globale des anticorps anti-Toxoplasma était de 45,5 %. Le taux de prévalence était de 80,5 % dans le groupe VIH-positif (47,2 % IgG, 22,2 % IgM et 11,1 % IgG + IgM) et de 37,8 % dans le groupe VIH négatif (25,6 %, 9,7 % et 2,4 %, respectivement). L’emploi d’une analyse de régression logistique multivariée a montré que le niveau secondaire d’éducation, la présence d’une infection par le VIH et la fréquence des contacts étroits avec les chats étaient significativement associés à la prévalence des anticorps IgG et/ou IgM.
Conclusion: Par rapport aux rapports précédents sur la toxoplasmose humaine au Cameroun, la prévalence dans notre étude a montré une diminution de la fréquence de la maladie. Des études complémentaires sont nécessaires pour déterminer si cette baisse est localisée dans notre étude ou est un phénomène général qui affecte actuellement le pays.

Mots clés : Cameroun, femmes enceintes, IgG, IgM, séroprévalence, Toxoplasma gondii

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Seroprevalence of Toxoplasmosis and associated risk factors in pregnant women at the Protestant Hospital, Mbouo-Bandjoun, Cameroon

 

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Current antibiotic susceptibility profile of the bacteria associated with Surgical wound infections in the Buea health district in Cameroon

JN Palle, N Bassah, HLF Kamga, G Nkwelang, JF Akoachere, E Mbianda, UG Nwarie, AL Njunda, NJC Assob, GH Ekane, M Ngowe Ngowe

 

Abstract

Background: Most surgical wounds seen in clinical practice in the Buea Health District, Cameroon are infected prior to arrival or while they are in the hospital. Sometimes the infection necessitates a combination of local wound site measures and systemic antibiotherapy to properly manage the patient.
Objective: To identify the current antibiotic susceptibility profile of the common germs that cause surgical wound infections in the Buea Health District of Cameroon.
Methods: A total of 2120 specimens comprising swabs from burns, ulcers, open or post-operative wounds were collected from hospitalized patients attending health institutions in Buea. The samples were collected from different anatomic sites of the patients. Cultures were effected from the specimens and bacteria isolated from infected wounds using standard microbiological techniques. Antibiotic susceptibility of the different isolates was determined.
Results: Majority (79.8%) of the wounds were infected with pathogenic bacteria. The germs globally showed multi resistant patterns to commonly used antibiotics in the study area, especially to co-trimoxazol, doxycycline, chloramphemicol, ampicilline and aztreonam. However appreciable sensitivity was noted to ofloxacillin, perflacin, and ceftriazone.
Conclusion: This study has revealed ofloxacin as the only antibiotic to which all the isolated bacteria from infected wounds were sensitive in the study area.

Keywords: Wound infection, Antibiotic susceptibility profile, Buea Health District, Cameroon

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Current antibiotic susceptibility profile of the bacteria associated with Surgical wound infections in the Buea health district in Cameroon

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The relationship between perception and prevalence of faecal-orally transmitted parasitic infections among school children’s in a rural community in Cameroon

HLF Kamga, PF Nde, SA Fomumbod, F Nguemaim, TE Kwenti, DS Nsagha, NJC Assob, AL Njunda

 

Abstract

Background: Faecal-orally transmitted parasites are those which are spread through faecal contamination of food and drinks. Infections with these parasites are responsible for high morbidity and mortality, especially in children in developing countries.

Objective: This study was carried out to determine school children’s perception of faecal-orally transmitted parasitic infections and the relationship between that perception and the prevalence of the infections.
Methods: Data were collected through questionnaires and laboratory analysis of stool samples. The study was conducted in two phases. In phase 1 questionnaires were administered to determine children’s knowledge on the cause, risk behaviours and prevention of the faecal-orally parasite infections. Stool specimens were analyzed using the formol-ether concentration technique. Health education was utilized in the experimental village, but not the control. Phase 2 was conducted six months later during which questionnaires were distributed and stool samples analyzed from both villages.

Results: A total of 370 children were enrolled in this intervention study, out of which 208 were from Kake II (experimental arm) and 162 from Barombi-kang (control arm). At Kake II there was a significant increase in awareness in relation to the source of infection (9.5% vs. 62.5%, P< 0.001), risk behaviour (12.4% vs. 83.7, P<0.001) and prevention (17.9% vs. 84.8%, P<0.001) between the first and second phase of the study, followed by a significant change in the prevalence of Ascaris lumbricoides (24.9% vs. 3.4%, P<0.001), Entamoeba coli (12.9% vs. 6.5%, P<0.001), Trichuris trichiura (22.4% vs. 12.5%, P=0.004) and Entamoeba histolytica (6.0% vs. 1.9%, P=0.035). In Barombi-kang the change in the awareness was not significant (P>0.1) and there was no significant change in the prevalence of any of the faecal-orally transmitted parasites detected. The relationship between the perception and the prevalence of feacal orally transmitted parasitic infections showed a strong negative correlation (r dispersed between -0.97 and -99)
Conclusion: Health education applied in the experimental village was responsible for the changed perception of infection by children and consequently for the reduction of infestation rate. Good perception of the infection was inversely proportional to its prevalence. Therefore, health education through the framework of school proved to be an effective control method for faecalorally parasite infections. We recommend this inexpensive method to be adopted as a national policy in developing countries, especially in rural communities.

Key Words: Perception and prevalence, Faecal-orally transmitted parasitic infections, School children, Cameroon

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In-vitro antifungal effect of Garcinia kola and garlic (Alliums sativum) on vaginal isolates of candida The relationship between perception and prevalence of faecal-orally transmitted parasitic infections among school children’s in a rural community in Cameroon

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Epidemiological Studies on Proteeae Isolates from Clinical Specimens in the Laquintinie Hospital in Douala, Cameroon

HLF Kamga, DS Nsagha, JCN Assob, AL Njunda, GNE Tchape

 

Abstract

The tribe Proteeae is a group of bacteria within the family Enterobacteriaceae and is responsible for most cases of nosocomial infections in hospital settings. The objective of this study was to determine the prevalence of members of Proteeae from clinical specimens in Laquintinie hospital in Douala. Specimens were collected from patients and screened for Proteeae using standard microbiological and biochemical methods (API 20 Enterobacteriaceae gallery). Of the 3414 clinical specimens made of 2712 urine, 264 blood, 243 CSF and 195 wounds and burns, 1136 (33.3%) yielded a positive bacterial growth, of which 230 (20.2%) were Gram positive and 906 (79.7%) were Gram negative. 164 (14.4%) isolates were identified as members of Proteeae of which 110 (67.1%) were from urine, 37( 22.6%) from wounds and burns, 10(6.1%) from blood and 7( 4.3%) from CSF. Speciation of the Proteeae isolates showed that 111 (67.7%) were Proteus mirabilis, 21(12.8%) Proteus vulgaris, 11 (6.7%) Providencia alcalifaciens, 6 (3.6%) Providencia stuartii, 4 (2.4%) Morganella morganii and 5 (3.0%) Proteus penneri and Providencia rettgeri. There was a significant difference between the type of clinical specimens and the age of patients (X2 = 52.623 p<0.05). Most Proteeae isolates where susceptible to imipemen, ceftazidine, chloramphenicol, gentamicin, nalidixic acid, ofloxacin and amikacin. These findings have significant clinical and epidemiological implications.

Keywords: Proteeae isolates, Clinical specimens, Laquintinie Hospital, Cameroon

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Epidemiological Studies on Proteeae Isolates from Clinical Specimens in the Laquintinie Hospital in Douala, Cameroon

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Toxoplasma antibodies amongst HIV/AIDS patients attending the University Teaching Hospital Yaounde in Cameroon

JCN Assob, AL Njunda, DS Nsagha, HL Kamga, PE Weledji, VB Che

 

Abstract

Toxoplasmosis is caused by an obligatory intracellular protozoon. It causes a wide range of diseases with toxoplasma encephalitis commonly encountered in HIV/AIDS patients. This work was carried out to determine the seroprevalence of toxoplasma antibodies (IgM and IgG) in HIV/AIDS patients attending the Yaoundé University Teaching Hospital (UTH) in Cameroon. Sera were collected from 133 HIV/AIDS patients at the out-patient department and the ELISA technique was employed serologically to determine toxoplasma antibodies. Of the 133 patients 83 (62.4%) were females and 59 (37.6%) were males; ninety three (69.9%) were positive for toxoplasma antibodies. Fourteen (10.8%) of the 93 of seropositive patients presented with both IgG and IgM-antibodies in their sera while fifty six (42.1%) and 8 (6.0%) were only sero-positive for toxoplasma IgG or IgM-antibody respectively This rate of infection was not dependent on the patient’s sex or age (X2=11.49, P>0.05). The data provides enough evidence to conclude that 64.7% of the positive cases were due to reactivated infection.

Key words: Toxoplasmosis, HIV/AIDS, Pregnancy, Risk factors, Prevalence, Yaounde, Cameroon.

Toxoplasma antibodies amongst HIVAIDS patients attending the University Teaching Hospital Yaounde in Cameroon

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Prevalence of septicaemia and antibiotic sensitivity pattern of bacterial isolates at the University Teaching Hospital, Yaoundé, Cameroon

H.L.F Kamga, A.L Njunda, P.E Nde, J.C.N Assob, D.S Nsagha, P Weledji

 

Abstract

Bloodstream infections are important causes of mortality and morbidity. Rapid empiric antibiotic therapy is often needed. Knowledge of epidemiological data of common pathogens and their antibiotic sensitivity pattern is needed for rapid therapy. This study was aimed at determining the common causes of septicaemia and their antibiotic sensitivity pattern from the University Teaching Hospital, Yaoundé. Blood samples were collected and cultured aerobically. Isolates were identified using bacteriological and biochemical methods and antibiotic sensitivity was done using the Kirby- Bauer disc diffusion method. Results showed that of the 396 patients examined 112 (28.3%) had septicaemia. Children below the age of 15 years constituted the greatest percentage of infected subjects (63.4%) followed by patients aged between 16-30 years (10.7%) (P < 0.05). The highest incidence of septicaemia were from medicine (8.95‰), followed by paediatrics (7.04‰), surgery (6.46 ‰), out-patients (5.79‰), neonatology (5.12‰), obstetrics and gynaecology (5.05‰) and emergency (2.05‰) wards. The overall incidence of septicaemia was 5.79 per 1000 admissions. Gram-positive bacteria were encountered more often than gram negative bacteria (56.2% versus 43.8%, P<0.05). Among the gram-positive bacteria, 52 (82.5%) were Staphylococci; 6 (9.5%) were Streptococcus species; while 5 (7.9%) were unidentified grampositive bacteria. Among gram-negative bacteria, Enterobacteriacea 39 (79.6%) and non-fermenting bacteria 10 (20.1 %) were more frequent. Staphylococci were generally sensitive to Minocyclin and Rifampin (90%) while Enterobacteriaceae were most sensitive to Cefoxitin (71%) and Aztreonam (74%). Staphylococcus epidermidis, S. aureus and Salmonella typhi are the leading causes of bacteraemia among patients attending the University Teaching Hospital, Yaoundé

Keywords: Septicaemia, antibiotic sensitivity, Cameroon

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Prevalence of septicaemia and antibiotic sensitivity pattern of bacterial isolates at the University Teaching Hospital, Yaoundé, Cameroon