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Berihu T, Gebremariam G, Weldu Y, Kahsay A, Asmelash T, Gebreyesus A. Prevalence, antimicrobial susceptibility test and associated factors of Salmonella and Shigella in ready-to-eat fruit juices and salads in Mekelle, northern Ethiopia. BMC Infect Dis 2024; 24:191. [PMID: 38350855 PMCID: PMC10863215 DOI: 10.1186/s12879-024-09066-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 01/28/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Food borne diseases is a challenging problem nowadays. Salmonella and Shigella species are great concern of food-born outbreaks. Thus, this study was aimed to assess the prevalence, antimicrobial susceptibility test and associated factors of Salmonella and Shigella species in fruit juices and salads. METHODS A community based cross sectional study design was carried out on 50 juice houses from December to March 2020 in Mekelle. One hundred fifty samples were collected aseptically from the juice houses for laboratory analysis. Information related to risk factors was obtained using a structured questionnaire. In the laboratory, samples were homogenized using peptone water and incubated overnight for enrichment. Then, Salmonella and Shigella species were isolated on Salmonella-Shigella agar and Xylose Lysine Deoxycholate agar. Disc diffusion method was used to perform antimicrobial susceptibility test. Using SPSS (version 22) package, descriptive statistics and Chi square test (χ2) were used to analyze the data, and p < 0.05 was considered as statistically significant. RESULT The overall prevalence of Salmonella and Shigella species was 41/150 (27.33%; 95% CI: 20.20 - 34.46) with 33 (22%) Salmonella spp. and 8(5.33%) Shigella spp. Antimicrobial susceptibility tests of both Salmonella and Shigella spp.showed high resistance against ampicillin (100%), tetracycline (63.6 and 62.5%, respectively) and amoxicillin-clavulanic acid (100%). Accessibility of fruits to flies and dust had statistical association (p = 0.021) with occurrence of Salmonell a and/or Shigella spp. CONCLUSION The overall prevalence of Salmonella and Shigella spp. was found to be significant. The resistant rate of isolates against ampicillin, tetracycline and amoxicillin-clavulanic acid was high. Storage sites for fruits should be inaccessible to flies and dust. Therefore, routine monitoring of juice houses should be promoted and regular evaluation of bacterial resistance pattern should be done for selective antimicrobial therapy. Furthermore, consistent training of juice makers on food safety and hygiene should be implemented by the concerned body.
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Affiliation(s)
- Tesfay Berihu
- Department of Medical Laboratory Science, College of Health Science and Comprehensive Specialized Hospital, Aksum University, Axum, Tigray, Ethiopia
| | - Guesh Gebremariam
- Department of Medical Laboratory Science, College of Health Science and Comprehensive Specialized Hospital, Aksum University, Axum, Tigray, Ethiopia.
| | - Yemane Weldu
- Department of Medical Microbiology and Immunology, College of Health Science and Comprehensive Specialized Hospital, Mekelle University, Mekelle, Tigray, Ethiopia
| | - Amlsha Kahsay
- Department of Medical Microbiology and Immunology, College of Health Science and Comprehensive Specialized Hospital, Mekelle University, Mekelle, Tigray, Ethiopia
| | - Tsehaye Asmelash
- Department of Medical Microbiology and Immunology, College of Health Science and Comprehensive Specialized Hospital, Mekelle University, Mekelle, Tigray, Ethiopia
| | - Araya Gebreyesus
- Department of Medical Microbiology and Immunology, College of Health Science and Comprehensive Specialized Hospital, Mekelle University, Mekelle, Tigray, Ethiopia
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Teame G, Gebreyesus A, Tsegay E, Gebretsadik M, Adane K. Hepatitis B and C viral coinfections and their association with HIV viral load suppression among HIV-1 infected patients on ART at Mekelle hospital, northern Ethiopia. AIDS Res Ther 2022; 19:57. [PMID: 36457041 PMCID: PMC9714192 DOI: 10.1186/s12981-022-00479-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 11/04/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Although Ethiopia is endemic to viral hepatitis and HIV, data that could guide population-specific interventions are limited. In this study, we determined the seroprevalence of hepatitis B virus (HBV) and hepatitis C virus (HCV) and assessed their associations with HIV-1 viral load suppression among HIV-1 infected patients on antiretroviral therapy (ART) at Mekelle hospital in northern Ethiopia. METHODS Between February and April 2020, blood samples were collected from 439 participants. Samples were screened for HBsAg and anti-HCV on the immunochromatographic test and confirmed using the Enzyme-Linked Immuno-sorbent assay (Beijing Wantai Co. China). HIV-1 viral load was quantified using reverse transcription-polymerase chain reaction (RT-PCR) on the Abbott platform. Binary and multivariable logistic regression was performed to identify potential predictors. RESULTS Overall, 10% (44/439) and 3.6% (16/439) of the participants were coinfected with HBV and HCV, respectively. In a multivariate analysis, being illiterate (AOR = 6.57; 95% CI 1.04-41.6), and having a history of sexually transmitted infections (AOR = 4.44; 95% CI 1.31-15.0) and multiple sexual partners (AOR = 29.9; 95% CI 7.82-114.8) were associated with HBV infection. On the other hand, participants with a history of chronic non-communicable diseases (AOR = 10.6, 95% CI 1.61-70.1), and those reporting a history of sexually transmitted infections (AOR = 5.21, 95% CI 1.39-19.5) were more likely to be infected with HCV. In further analysis, HCV infection status was significantly associated with decreased viral load suppression rate (AOR = 7.14; 95% CI 2.18-23.3) whereas no significant association was observed with the HBV infection. CONCLUSIONS The HBV coinfection rate in our study is high and, as per WHO's standard, corresponds to a hyperendemic level. The HCV coinfection rate is also substantially high and urges attention given its influence on the viral load suppression of HIV patients on ART at our study site. Our findings suggest the need to adopt universal screening and vaccination of people with HIV against HBV and screening for HCV at our study site and in Ethiopia at large, which contributes to Ethiopia's progress towards the 2030 global target of reducing the HBV infection.
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Affiliation(s)
| | - Araya Gebreyesus
- grid.30820.390000 0001 1539 8988Department of Microbiology and Immunology, Division for Biomedical Sciences, College of Health Science, Mekelle University, Mekelle, Ethiopia
| | - Ephrem Tsegay
- grid.30820.390000 0001 1539 8988Department of Microbiology and Immunology, Division for Biomedical Sciences, College of Health Science, Mekelle University, Mekelle, Ethiopia
| | - Mulu Gebretsadik
- Department of Clinical Laboratory, Ayder Comprehensive Specialized Hospital, Mekelle, Ethiopia
| | - Kelemework Adane
- grid.7123.70000 0001 1250 5688Department of Microbiology, Immunology, and Parasitology, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
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Kiros YK, Elinav H, Gebreyesus A, Gebremeskel H, Azar J, Chemtob D, Abreha H, Elbirt D, Shahar E, Chowers M, Turner D, Grossman Z, Haile A, Sutton RE, Maayan SL, Wolday D. Identification and characterization of HIV positive Ethiopian elite controllers in both Africa and Israel. HIV Med 2019; 20:33-37. [PMID: 30318718 PMCID: PMC6510948 DOI: 10.1111/hiv.12680] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2018] [Indexed: 11/29/2022]
Abstract
OBJECTIVES HIV elite controllers (ECs) are a unique subgroup of HIV-positive patients who are long-term virologically suppressed in the absence of antiretroviral treatment (ART). The prevalence of this subgroup is estimated to be < 1%. Various cohorts of ECs have been described in developed countries, most of which have been demographically heterogeneous. The aim of this study was to identify ECs in two large African cohorts and to estimate their prevalence in a relatively genetically homogenous population. METHODS We screened two cohorts of HIV-positive Ethiopian patients. The first cohort resided in Mekelle, Ethiopia. The second was comprised of HIV-positive Ethiopian immigrants in Israel. In the Mekelle cohort, ART-naïve subjects with stable CD4 counts were prospectively screened using two measurements of viral load 6 months apart. Subjects were defined as ECs when both measurements were undetectable. In the Israeli cohort, subjects with consistently undetectable viral loads (mean of 17 viral load measurements/patient) and stable CD4 count > 500 cells/μL were defined as ECs. RESULTS In the Mekelle cohort, 16 of 9515 patients (0.16%) fitted the definition of EC, whereas seven of 1160 (0.6%) in the Israeli cohort were identified as ECs (P = 0.011). CONCLUSIONS This is the first large-scale screening for HIV-positive ECs to be performed in entirely African cohorts. The overall prevalence of ECs is within the range of that previously described in developing countries. The significant difference in prevalence between the two cohorts of similar genetic background is probably a consequence of selection bias but warrants further investigation into possible environmental factors which may underlie the EC state.
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Affiliation(s)
- Y K Kiros
- Mekelle University College of Health Sciences, Mekelle, Tigray, Ethiopia
| | - H Elinav
- Clinical Microbiology and Infectious Diseases Department, Hadassah University Medical Center, Jerusalem, Israel
| | - A Gebreyesus
- Mekelle University College of Health Sciences, Mekelle, Tigray, Ethiopia
| | - H Gebremeskel
- Mekelle University College of Health Sciences, Mekelle, Tigray, Ethiopia
| | - J Azar
- Internal Medicine Division, Hadassah University Medical Center, Jerusalem, Israel
| | - D Chemtob
- Department of Tuberculosis and AIDS, Ministry of Health, Jerusalem, Israel
| | - H Abreha
- Mekelle University College of Health Sciences, Mekelle, Tigray, Ethiopia
| | - D Elbirt
- The Allergy, Clinical Immunology and AIDS Unit, Kaplan Medical Center, Rehovot, Israel
| | - E Shahar
- Institute of Allergy, Immunology and AIDS Rambam Medical Center, Haifa, Israel
| | - M Chowers
- Infectious Diseases Unit, Meir Medical Center, Kfar Saba, Israel
| | - D Turner
- Crusaid Kobler AIDS Center, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Z Grossman
- Clinical Microbiology and Infectious Diseases Department, Hadassah University Medical Center, Jerusalem, Israel
| | - A Haile
- Mekelle University College of Health Sciences, Mekelle, Tigray, Ethiopia
| | - R E Sutton
- Division of Infectious Diseases, Department of Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - S L Maayan
- Division of Infectious Diseases, Barzilai Medical Center, Ashkelon, Israel
| | - D Wolday
- Mekelle University College of Health Sciences, Mekelle, Tigray, Ethiopia
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Legese H, Kahsay AG, Kahsay A, Araya T, Adhanom G, Muthupandian S, Gebreyesus A. Nasal carriage, risk factors and antimicrobial susceptibility pattern of methicillin resistant Staphylococcus aureus among healthcare workers in Adigrat and Wukro hospitals, Tigray, Northern Ethiopia. BMC Res Notes 2018; 11:250. [PMID: 29685170 PMCID: PMC5914064 DOI: 10.1186/s13104-018-3353-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 04/11/2018] [Indexed: 11/30/2022] Open
Abstract
Objective The aim of this study was to determine nasal carriage, risk factors and antimicrobial susceptibility pattern of methicillin resistant Staphylococcus aureus among health care-workers of Adigrat and Wukro hospitals Northern Ethiopia. Results The overall prevalence of S. aureus and methicillin resistance S. aureus (MRSA) in the present study were 12% (29/242) and 5.8% (14/242) respectively. The rate of MRSA among S. aureus was 48.3%(14/29). In this study, MRSA carriage was particularly higher among nurse professionals (7.8%) and surgical ward (17.1%). None of the MRSA isolates were sensitive to penicillin and ampicillin. However, low resistance was found for chloramphenicol and clindamycin. Being diabetic and use of hands rub was statistically significant with MRSA colonization. Electronic supplementary material The online version of this article (10.1186/s13104-018-3353-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Haftom Legese
- Department of Microbiology and Immunology, Institute of Biomedical Sciences, College of Health Science, Mekelle University, Mekelle, Ethiopia. .,Department of Medical Laboratory, College of Medicine and Health Science, Adigrat University, Adigrat, Ethiopia.
| | - Atsebaha Gebrekidan Kahsay
- Department of Microbiology and Immunology, Institute of Biomedical Sciences, College of Health Science, Mekelle University, Mekelle, Ethiopia
| | - Amlisha Kahsay
- Department of Microbiology and Immunology, Institute of Biomedical Sciences, College of Health Science, Mekelle University, Mekelle, Ethiopia
| | - Tadele Araya
- Department of Microbiology and Immunology, Institute of Biomedical Sciences, College of Health Science, Mekelle University, Mekelle, Ethiopia
| | - Gebre Adhanom
- Department of Microbiology and Immunology, Institute of Biomedical Sciences, College of Health Science, Mekelle University, Mekelle, Ethiopia.,Department of Medical Laboratory, College of Medicine and Health Science, Adigrat University, Adigrat, Ethiopia
| | - Saravanan Muthupandian
- Department of Microbiology and Immunology, Institute of Biomedical Sciences, College of Health Science, Mekelle University, Mekelle, Ethiopia
| | - Araya Gebreyesus
- Department of Microbiology and Immunology, Institute of Biomedical Sciences, College of Health Science, Mekelle University, Mekelle, Ethiopia
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Teweldemedhin M, Saravanan M, Gebreyesus A, Gebreegziabiher D. Ocular bacterial infections at Quiha Ophthalmic Hospital, Northern Ethiopia: an evaluation according to the risk factors and the antimicrobial susceptibility of bacterial isolates. BMC Infect Dis 2017; 17:207. [PMID: 28292273 PMCID: PMC5351251 DOI: 10.1186/s12879-017-2304-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 03/04/2017] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND External and intraocular infections can lead to visual impairments, which is a major public health problem. Bacteria are the most frequent pathogens affecting ocular structures; the increasing rate of antimicrobial drug resistance is a worldwide concern. The aim of this study was to determine the occurrence of bacteria in ocular infections, their antimicrobial susceptibility patterns, and risk factors in bacterial ocular infection. METHODS A hospital based cross-sectional study was conducted from September 2015 to December 2015 at Quiha Ophthalmic Hospital, Tigray, northern Ethiopia. Ocular specimens from blepharitis, blepharoconjunctivitis, conjunctivitis, keratitis, endophthalmitis, periorbital cellulitis and dacrocystitis were collected from 270 individuals with suspected ocular infection. Data on sociodemographic and risk factors were also collected using a structured questionnaire. Data analysis was performed using SPSS version 21 and 0.05 with a corresponding 95% confidence interval (CI) was considered statistically significant. RESULTS Among 270 study subjects, 180 (66.7%) were culture positive for different bacterial isolates. The predominant bacterial isolates were Staphylococcus aureus (40, 22.2%), coagulase negative staphylococci (31, 17.2%) and Pseudomonas aeruginosa (21, 11.7%). Ocular surface disease, ocular trauma, hospitalization and cosmetic application practices were significantly associated with the occurrence of bacterial infection. Concerning antimicrobial susceptibility, most isolates were susceptible to amikacin (137, 93.2%), gentamicin (131, 89.1%) and ciprofloxacin (141, 89.2%). Overall, 40 (22.5%), 34 (19.1%) and 62 (34.8%) isolates were resistant to one, two, and three or more antimicrobials, respectively. CONCLUSION Bacteria were isolated from the majority of the study subjects. More than half of the bacterial isolates were resistant at least to one drug and a significant rate of multidrug resistance was detected. Therefore, identification of the etiologic agent and antimicrobial susceptibility testing should be practiced to select the appropriate antimicrobial agent to treat eye infections and prevent the emergence of drug resistant bacteria.
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Affiliation(s)
- Mebrahtu Teweldemedhin
- Department of Medical Microbiology and Immunology, Institute of Biomedical Sciences, College of Health Sciences, Mekelle University, 1871, Mekelle, Ethiopia
- Unit of Biomedical Science, School of Medicine, College of Health Sciences, Aksum University, Aksum, Tigray Ethiopia
| | - Muthupandian Saravanan
- Department of Medical Microbiology and Immunology, Institute of Biomedical Sciences, College of Health Sciences, Mekelle University, 1871, Mekelle, Ethiopia
| | - Araya Gebreyesus
- Department of Medical Microbiology and Immunology, Institute of Biomedical Sciences, College of Health Sciences, Mekelle University, 1871, Mekelle, Ethiopia
| | - Dawit Gebreegziabiher
- Department of Medical Microbiology and Immunology, Institute of Biomedical Sciences, College of Health Sciences, Mekelle University, 1871, Mekelle, Ethiopia
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Tesfay K, Tesfay S, Nigus E, Gebreyesus A, Gebreegziabiher D, Adane K. More than half of presumptive multidrug-resistant cases referred to a tuberculosis referral laboratory in the Tigray region of Ethiopia are multidrug resistant. Int J Mycobacteriol 2016; 5:324-327. [DOI: 10.1016/j.ijmyco.2016.07.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 07/19/2016] [Indexed: 11/28/2022] Open
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Gebreyesus A, Adane K, Negash L, Asmelash T, Belay S, Alemu M, Saravanan M. Prevalence of Salmonella typhi and intestinal parasites among food handlers in Mekelle University student cafeteria, Mekelle, Ethiopia. Food Control 2014. [DOI: 10.1016/j.foodcont.2014.03.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gebreyesus A, Gebre-Selassie S, Mihert A. Nasal and hand carriage rate of methicillin resistant Staphylococcus aureus (MRSA) among health care workers in Mekelle Hospital, North Ethiopia. Ethiop Med J 2013; 51:41-47. [PMID: 23930490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND Methicillin resistant Staphylococcus aureus (MRSA) is significant major pathogen responsible for hospital and community based infections. OBJECTIVE The aim of this study was to assess the nasal and hand carriage of methicillin resistant Staphylococcus aureus in health care workers of Mekelle Hospital METHODS The study was carried out during November 2010 to January 2011. Swab samples from both anterior nares and hands were taken. The samples were cultured on mannitol salt agar and incubated aerobically at 37 degrees C for 48 hours. Staphylococcus aureus was identified as nmannitol fermenter and coagulase test positive. Antimicrobial susceptibility test for MRSA was done by disk diffusion method using oxacillin disks. Data were analysed using SPSS version 16 software. RESULTS Out of the 177 health care workers screened, 36 (20.3%) of them were methicillin resistant Staphylococcus aureus carriers in their hand and anterior nares. More females, 25(14.1%) were colonized by methicillin resistant Staphylococcus aureus than males 11 (6.2%) (P = 0.044). Nasal carriage of MRSA of 25 (14.1%) was higher than hand carriage 11 (6.2%) (p < 0.05). Nurses and medical doctors had methicillin resistant Staphylococcus aureus carriage rates of 26 (13.6%) and 4 (2.3%), respectively. The isolated MRSA were resistant to multiple antibiotics. The highest resistance was observed for ampicillin (88.9%) and tetracycline (86.1%). Two (5.6%) of the nasal isolates were vancomycin resistant. CONCLUSION Methicillin resistant Staphylococcus aureus carriage among health care workers in this study was high. The carriage rate was higher among nurses and doctors. The MRSA isolates were multi drug resistant to other antibiotics. So, the result of this study emphasizes the need of regular surveillance of health care workers. It also calls a need for an effective infection prevention and control program.
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Affiliation(s)
- Araya Gebreyesus
- Department of Medical Microbiology, Immunology and Parasitology, School of Medicine , Mekelle Univesity.
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