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1.
J Multidiscip Healthc ; 17: 1007-1021, 2024.
Article in English | MEDLINE | ID: mdl-38476254

ABSTRACT

Background: Laboratory test results are the cornerstone for patient diagnosis and treatment. Gram staining is a classic laboratory test method used to differentiate between bacteria. Competence assessment can help identify gaps and provide suggestions to academics, researchers, and policymakers to address competency gaps. In Ethiopia, there is no evidence of competency assessment by medical laboratory professionals using the Gram-staining technique. Objective: To assess the competency of medical laboratory professionals on Gram stain examination and interpretation in selected hospitals of Addis Ababa, Ethiopia. Methods: A cross-sectional study was conducted to assess the competency of medical laboratory professionals on Gram stain examination and interpretation from September 2015 to December 2017. Results: Of 190 participants, 55 (28.9%) participants scored low knowledge, 131 (68.9%) scored medium knowledge, and only 4 (2.1%) respondents scored high knowledge. From the study variables, education level, supervision by regional or federal government bodies, and training about Gram staining were significantly associated with the knowledge level of study participants. Forty eight (25.3%), 78 (41%), and 64 (33.7%) participants scored low, medium, and high skill level, respectively, from a total of 190 participants. From skill level analysis, hospital type, microscope type, and availability of health information resources were significantly associated with skill levels. There were 44 observations (4%) with major errors and 321 observations (28%) with very major errors from all 1140 observations. Of all observations, 321 (28.2%) reported without grading, 39 observations (3.4%) reported gram-positive bacteria as gram-negative bacteria, and 15 observations (1.4%) reported gram-negative bacteria as gram-positive bacteria. Conclusion: The current study found that most medical laboratory professionals work without supervision or refresher training in Gram stain examination and interpretation. Hence, medical laboratory professionals' knowledge and skill levels are unsatisfactory. Regular competence assessments, training, and follow-up are necessary to improve the professional competence in medical laboratories.

2.
Trop Med Health ; 50(1): 57, 2022 Aug 22.
Article in English | MEDLINE | ID: mdl-35996198

ABSTRACT

BACKGROUND: Worldwide, come out and dissemination of extended-spectrum beta-lactamases (ESBLs) producing Enterobacteriaceae has been warning the efficacy of antibiotics to treat an infection. Hospital wastewaters were a reservoir of such kind of resistant bacteria. Currently, the predominant antibiotics used for the treatment of hospitalized patients infected by Gram-negative bacteria are the ß-lactam antibiotics. Therefore, it is an important source to investigate the magnitude of ESBLs producing bacteria and their antimicrobial susceptibility pattern. This study aimed to determine the occurrence of ESBLs producing Enterobacteriaceae (ESBLs-pE) and their antibiotic susceptibility pattern in wastewater released from five governmental hospitals in Addis Ababa, Ethiopia. METHODS: A cross-sectional study was conducted from April 1 to May 31, 2020. A total of 100 wastewaters were collected from five governmental hospitals in Addis Ababa using a grap-sampling technique. All Enterobacteriaceae were screened for ESBLs production using cefotaxime and ceftazidime as per 29th CLSI guideline. Each screen positive for ESBLs production was confirmed by the combination disk method (CDT) and their antibiotic susceptibility pattern was done using the Kirby-Bauer disk diffusion method on Muller Hinton agar (MHA). Data were entered and summarized using SPSS version 20 software. RESULTS: Of all Enterobacteriaceae, 48.3% were confirmed ESBLs-pE. The highest ratio of ESBLs-PE was observed in the adult ward (66.7%) and laundry unit effluent (58.8%). The highest ESBL producers were E. coli (21.8%) and K. pneumoniae (4.8%). The most elevated resistance level of ESBL producers were observed to cefotaxime (95.8%) and amoxicillin/clavunalate (93%). 64% of tested Enterobacteriaceae isolates were multi drug resistant (MDR). CONCLUSIONS: Higher magnitude of MDR and ESBLs-pE were present in the hospital wastewater. The majority of them were in the adult ward and laundry unit effluents. The most frequent ESBLs-pE was among E.coli and K. pneumoniae. Hence, Consistent infection prevention and control procedures should be in practice at each ward/unit.

3.
PLoS One ; 16(10): e0258117, 2021.
Article in English | MEDLINE | ID: mdl-34597328

ABSTRACT

BACKGROUND: Extended-spectrum beta-lactamase (ESBL) producing bacteria present an ever-growing burden in the hospital and community settings. Data on the prevalence of ESBL fecal carriage remain scarce in Ethiopia. Therefore, this study aimed to determine the prevalence of ESBL producing Escherichia coli and Klebsiella pneumoniae fecal carriage among children under five years in Addis Ababa, Ethiopia. METHODS: A facility-based cross-sectional study was conducted from April to May 2017. A total of 269 fecal/rectal swab samples were cultured on MacConkey agar. All positive cultures were characterized by colony morphology, Gram stain, and standard biochemical tests. Further, bacteria identification, antimicrobial susceptibility testing, and phenotypic detection of ESBL production were performed using VITEK 2 Compact as per the instruction of the manufacturer. Socio-demographic and risk factors data were collected using questionnaires. Data were entered by EPI INFO version 7.2.1.0 and analyzed by SPSS version 20. RESULTS: The overall prevalence of ESBL-producing E. coli and K. pneumoniae was 17.1% (46/269; 95% CI: 12.9%-22.7%). A total of 47 isolates were ESBL-positive, of which, 83.0% were E. coli and 17.0% were K. pneumoniae. ESBL producing E. coli and K. pneumoniae isolates were also showed high levels of MDR (93.6%) and high rates of co-resistance to aminoglycosides, fluoroquinolones, and trimethoprim-sulfamethoxazole. However, all isolates were carbapenem susceptible. In the risk factors analysis, Children's mothers who had lower educational level (primary school) (OR: 2.472, 95% CI: 1.323-4.618, P = 0.0062) and children who used tap water for drinking (OR: 1.714, 95% CI: 1.001-3.659, P = 0.048) were found to be significantly associated with higher ESBL fecal carriage. CONCLUSIONS: In this study, the high prevalence rate of ESBL producing E. coli and K. pneumoniae fecal carriage and high level of multidrug resistance among ESBL producing E. coli and K. pneumoniae were demonstrated. This suggested that the necessity of routine screening of ESBL is crucial for the early detection and appropriate antibiotics selection for infection caused by ESBL producing pathogens.


Subject(s)
Drug Resistance, Multiple, Bacterial , Escherichia coli Infections , Escherichia coli/isolation & purification , Feces/microbiology , Klebsiella Infections , Klebsiella pneumoniae/isolation & purification , Child, Preschool , Cross-Sectional Studies , Escherichia coli Infections/epidemiology , Escherichia coli Infections/microbiology , Ethiopia/epidemiology , Female , Humans , Infant , Infant, Newborn , Klebsiella Infections/epidemiology , Klebsiella Infections/microbiology , Male , Prevalence , beta-Lactamases/metabolism
4.
Biomed Res Int ; 2021: 9999638, 2021.
Article in English | MEDLINE | ID: mdl-34195291

ABSTRACT

BACKGROUND: The emergence and spread of multi-drug resistant (MDR) bacteria have become a public health problem in recent years. For the last many years, carbapenem antibiotics have been used successfully to treat infections caused by MDR Enterobacteriaceae. However, recently, Enterobacteriaceae producing carbapenemases have emerged, which confer broad resistance to most ß-lactam antibiotics including carbapenems. Therefore, this study is aimed at determining the magnitude of MDR and carbapenemase-producing Enterobacteriaceae (CPE) isolated from various clinical specimens in Addis Ababa, Ethiopia. METHODS: A cross-sectional study was conducted from January to April 2018. A total of 312 Enterobacteriaceae isolates were identified from various clinical specimens. The Phoenix automated system (BD Phoenix100) was used for bacterial identification and antimicrobial susceptibility testing. Potential carbapenemase producers were confirmed by the modified carbapenem inactivation test, and KPC, MBL, and OXA-48 were phenotypically characterized by the disk diffusion method. The data obtained were entered and analyzed using SPSS version 20 software. Descriptive statistics, chi square, bivariate and multivariable logistic regression analyses were performed. P value ≤ 0.05 with corresponding 95% confidence interval was considered for statistical significance. RESULTS: A total of 312 Enterobacteriaceae were recovered. Of these isolates, 68.6% were MDR and 2.6% were CPE with different classes including OXA-48 1.6% (5/312), MBL 0.6% (2/312), and KPC and OXA-48 0.3% (1/312). The predominant bacterial isolates were E. coli 72.4% (226/312) followed by K. pneumoniae 13.8% (43/312). The antibiotic resistance rates of CPE isolates were significantly higher than other MDRE including ampicillin (100% versus 77.6%), cefoxitin (75% versus 20.6%), and piperacillin/tazobactam (50% versus 13.1%). CONCLUSION: In this study, a relatively higher prevalence of MDR was observed, and the highest resistance was recorded against ampicillin, amoxicillin with clavulanic acid, and sulfamethoxazole-trimethoprim. Detection of CPE is important for implementing appropriate antimicrobial therapy and in controlling the spread of the infection. Furthermore, continuous screening and investigations, including genotypic characterization of CPE, are required for the prevention and control of the spread of antimicrobial-resistant pathogens.


Subject(s)
Carbapenem-Resistant Enterobacteriaceae/drug effects , Drug Resistance, Multiple, Bacterial/drug effects , Enterobacteriaceae/drug effects , Adult , Aged , Bacterial Proteins/metabolism , Carbapenems , Cross-Sectional Studies , Ethiopia/epidemiology , Female , Humans , Male , Microbial Sensitivity Tests , Middle Aged , Pattern Recognition, Automated , Phenotype , Prevalence , Public Health , Quality Control , Regression Analysis , Software , beta-Lactamases/metabolism , beta-Lactams/pharmacology
5.
PLoS One ; 15(11): e0241984, 2020.
Article in English | MEDLINE | ID: mdl-33180785

ABSTRACT

BACKGROUND: Extended spectrum Beta-lactamases (ESBLs) and AmpC beta-lactamases (AmpC) are the common enzymes produced by gram negative bacilli, which are their main mechanisms of resistance to all generations of cephalosporins. Hence, this study aimed to determine the magnitude of ESBLs and AmpC producing gram negative bacilli (GNB) isolated from clinical specimens at International clinical Laboratories in Addis Ababa, Ethiopia. METHODS: A cross sectional study was conducted from January to May 2018. From different clinical specimens, 338 GNB were isolated and characterized. Bacterial species identification, antimicrobial susceptibility testing and screening for ESBLs and AmpC production were performed using Phoenix automated system (BD phoenix100). ESBLs production was confirmed using a combination disc method. All Cefoxitin resistant and confirmed ESBLs producing GNB were confirmed for AmpC beta-lactamases production by AmpC confirmatory Neo-Sensitabs discs (ROSCO tablet). Data were analyzed using SPSS version 20 software. RESULTS: E. coli 66.0% (224/338) followed by K. pneumoniae 12.1% (41/338) were GNB most frequently isolated. The overall magnitude of ESBLs producing GNB was 38.8% (131/338) and the extent of AmpC beta-lactamase producing GNB was 2.4% (8/338). Majority of ESBLs and AmpC beta-lactamases producing GNB were isolated from urine specimens 47.5% (116/338). Ampicillin (75.4%), amoxicillin with clavulanic acid (64.0%) and sulfamethoxazole-trimethoprim (55.6%) were most the antibiotics to which resistance was most commonly found. The multidrug resistance (MDR) level of GNB was 74.0% (250/338). Of ESBLs and AmpC beta-lactamases producing GNB, 99.3% were MDR (p < 0.05). CONCLUSION: The high magnitude of ESBLs and AmpC beta-lactamases producing GNB calls the needs of strong intervention to minimize further occurrence and spread of such GNB. More importantly, the MDR level was high which suggests continuous monitoring & reviewing of antimicrobial policy in hospitals and the country at large.


Subject(s)
Anti-Bacterial Agents/pharmacology , Bacterial Proteins/metabolism , Gram-Negative Bacteria/classification , Gram-Negative Bacterial Infections/microbiology , beta-Lactamases/metabolism , Adolescent , Adult , Aged , Cross-Sectional Studies , Disk Diffusion Antimicrobial Tests , Drug Resistance, Bacterial , Drug Resistance, Multiple, Bacterial , Ethiopia , Female , Gram-Negative Bacteria/enzymology , Gram-Negative Bacteria/isolation & purification , Humans , Laboratories , Male , Middle Aged , Phylogeny , Young Adult
6.
Environ Health Prev Med ; 25(1): 9, 2020 Mar 09.
Article in English | MEDLINE | ID: mdl-32151243

ABSTRACT

BACKGROUND: In low resourced countries, water-associated diseases have still impact on public health. Poor quality of water can cause waterborne diseases through bacteria, viruses, protozoa, and parasites that has been responsible for millions of morbidity and mortality. Therefore, this study aimed to assess quality and safety of public municipal drinking water in Addis Ababa City. METHODS: Descriptive epidemiological study design that used quantitative approach was carried out at Addis Ababa City Administration from June 2016 to October 2016. Pre-tested and standardized aseptic sample collection technique was utilized to collect a total of 2976 samples (2951 water samples for bacteriological analysis by Presence-Absence (P-A) culturing method and 25 samples for parasites identification through direct microscopy examination). Descriptive data were summarized and cleaned by the SPSS version 20 software and presented in table and graph. RESULTS: The study revealed that 10%, 7% and 3% were positive for bacteriological, total coliforms, and fecal coliforms respectively through Presence-Absence Broth test. The bacterial distribution trends from 1st to 13th weeks of wet season were slight increment of total coliforms and slight decrement for fecal coliforms. All tested for parasitological samples from selected reservoirs were free from parasitological species. CONCLUSION: This study reflects that there were positive for bacterial, total coliforms, and fecal coliforms during the study period. It needs continuous screening and treating water sources to utmost important for prevention and control waterborne disease.


Subject(s)
Drinking Water/microbiology , Drinking Water/parasitology , Water Quality , Cities , Ethiopia , Seasons
7.
BMC Cancer ; 19(1): 768, 2019 Aug 05.
Article in English | MEDLINE | ID: mdl-31382907

ABSTRACT

BACKGROUND: Human papillomavirus is recognized as a major cause of cervical cancer. It is estimated that annually, 7,095 women are diagnosed with cervical cancer and 4,732 die from the disease in Ethiopia. Understanding that the screening practice is very poor and the coverage is very limited, this disease burden is one of the major public health agendas in Ethiopia. This study aimed to assess the burden and genotype distribution of high-risk human papillomavirus (HR HPV) infection and cervical cytology abnormalities at selected obstetrics and gynecology clinics of Addis Ababa, Ethiopia. METHODS: An institutional-based cross-sectional study design was employed from June to October 2015. Cervical samples were collected from 366 participants based on inclusion criteria. HR HPV DNA was analyzed using an Abbott Real-Time PCR system, and cervical cytology screening was performed using the conventional Pap-smear technique. Data were entered in to Epi-data version 13 and analyzed using STATA version 11. RESULTS: The overall HR HPV burden and abnormal cytology were 13.7 and 13.1%, respectively. The majority of HR HPV types were other than types 16 and 18. Of the total abnormal cytology results, 81.3% were low-grade squamous intraepithelial lesions (LSILs), and 12.5 and 6.3% were atypical squamous cells of undetermined significance (ASCUS) and high-grade squamous intraepithelial lesions (HSILs), respectively. Residence, occupation, and HIV serostatus were significantly associated with HR HPV infection. Among the variables, age, age at first marriage, and education were the only ones associated with cervical cytology abnormalities. The overall agreement between the real-time PCR and Pap cytology screening methods was 78.96% (Kappa value of 0.12, 95% CI (0.00-0.243), P = 0.01). CONCLUSIONS: Non-16/18 HR HPV genotypes represented the largest proportion of HR HPV infections in this study. Women without cervical cytology abnormalities had the highest frequency of HR HPV infection. A large-scale community-based cohort study shall be designed and implemented to further identifying the persistent genotype and assessing the changes in cervical epithelial cell lines.


Subject(s)
Cervix Uteri/pathology , Genotype , Gynecological Examination/methods , Human papillomavirus 16/genetics , Human papillomavirus 18/genetics , Papillomavirus Infections/virology , Adolescent , Adult , Age Factors , Atypical Squamous Cells of the Cervix/pathology , Cohort Studies , Cross-Sectional Studies , Early Detection of Cancer , Epithelial Cells/pathology , Ethiopia , Female , HIV Seropositivity , Humans , Mass Screening , Middle Aged , Papanicolaou Test , Real-Time Polymerase Chain Reaction , Uterine Cervical Neoplasms/virology , Vaginal Smears , Young Adult
8.
Article in English | MEDLINE | ID: mdl-30815254

ABSTRACT

Background: The global emergence and spread of extended-spectrum beta-lactamases (ESBLs) producing Enterobacteriaceae have been threatening the ability to treat an infection. Hence, this study aimed to determine the prevalence of ESBL-producing and multi-drug resistance (MDR) Enterobacteriaceae (ESBLs-E) from different clinical specimens in Addis Ababa, Ethiopia. Methods: A cross-sectional study was conducted from January 1 to May 30, 2017. A total of 426 Enterobacteriaceae isolates were identified from clinical specimens. The isolates were collected from four laboratories. Antimicrobial susceptibility testing was performed using the Kirby-Bauer disk diffusion method on Muller Hinton agar (MHA). All Enterobacteriaceae were screened for ESBLs production using cefotaxime and ceftazidime as per CLSI guideline. Each ESBL screening positive Enterobacteriaceae were confirmed by a combination disk test (CDT). Data were entered and analyzed by using SPSS version-20. Result: The most frequent Enterobacteriaceae were E. coli 228 (53.5%) and K. pneumoniae 103 (24.1%). The magnitude of ESBLs-E was 57.7% (246/426). The highest frequencies of ESBLs-E were observed in blood specimesns (84.4%) and the highest ESBLs production was observed in K. pneumoniae (85.4%). The highest resistance level was seen to sulfamethoxazole-trimethoprim (77.0%), amoxicillin with clavulanic acid (71.6%), cefotaxime (62.2%), cefepime (60.3%) and ceftazidime (60.8%). The overall magnitude of multi-drug resistance (MDR) level was 68.3%. Of ESBLs-E, 96.3% of them were MDR (P < 0.001). Conclusion: There was a high prevalence of ESBLs-E and MDR isolate in Addis Ababa. Most of ESBLs-E was isolated primarily in blood and urine. The highest ESBLs production was observed among K. pneumoniae. Hence, strong infection control strategies must be implemented in hospital settings of the country.


Subject(s)
Bacterial Proteins/metabolism , Drug Resistance, Multiple, Bacterial , Enterobacteriaceae Infections/microbiology , Enterobacteriaceae/enzymology , beta-Lactamases/metabolism , Adolescent , Adult , Aged , Anti-Bacterial Agents/pharmacology , Bacterial Proteins/genetics , Cefotaxime/pharmacology , Ceftazidime/pharmacology , Child , Child, Preschool , Cross-Sectional Studies , Enterobacteriaceae/classification , Enterobacteriaceae/drug effects , Enterobacteriaceae/genetics , Enterobacteriaceae Infections/epidemiology , Ethiopia/epidemiology , Female , Humans , Infant , Male , Microbial Sensitivity Tests , Middle Aged , Young Adult , beta-Lactamases/genetics
9.
Int J Chronic Dis ; 2018: 5183713, 2018.
Article in English | MEDLINE | ID: mdl-30538998

ABSTRACT

BACKGROUND: Early detection and treatment of Helicobacter pylori (H. pylori) infection in women of child bearing ages may reduce the risk of maternal health disorder. This study was conducted to determine the burden of H. pylori infections and associated risk factors among women of child bearing ages in Kolfe Keranio Subcity Woreda 9 Health Centers, Addis Ababa, Ethiopia. METHODS: Facility based cross sectional study design was conducted from April to October 2015. The study recruited 195 pregnant and 137 nonpregnant women with age range of 16-40 years. Sociodemographic data of study participants were collected by structured questionnaire. Venous blood was analyzed to determine hemoglobin, H. pylori stool antigen test kit was used to assess H. pylori infection, and fresh fecal (stool) was used to examine intestinal parasites among study subjects. Data was entered and analyzed using SPSS version 19. Bivariate and multivariate logistic regression model using odds ratio (OR) at 95% confidence interval (CI) were calculated. P-value less than 0.05 was taken as statistically significant. RESULTS: The overall burden of H. pylori infection among study participants was 29% (96/332). H. pylori infection was statistically significantly associated with pregnancy status (AOR: 1.825, CI (1.42-2.15), P=0.020), history of hyperemesis gravidarum (AOR=7.028, C.I (2.47-19.99), P=0.018), and low hemoglobin value (AOR=0.177, CI (0.083-0.379), p=0.003). There was no statistically significant association between H. pylori infection and sociodemographic characteristics and some expected risk factors like smoking, Khat chewing, alcohol drinking habit, and presence of intestinal parasites. CONCLUSION: In this study, H. pylori infection was still a public health problem in the study area. H. pylori infected women also had high rate of anemia compared to women who had not H. pylori infected. Hence clinician and other responsible bodies should give a special attention for women who had been infected with H. pylori. Further large case control studies are warranted to understand more the role of H. pylori, HG, and other associated risk factors.

10.
BMC Res Notes ; 11(1): 793, 2018 Nov 06.
Article in English | MEDLINE | ID: mdl-30400980

ABSTRACT

OBJECTIVE: Enterococci which are parts of the normal intestinal flora are opportunistic human pathogens. Their increasing importance is largely due to their resistance to antimicrobials. So the aim this study was to determine the prevalence and antimicrobial pattern of Enterococcus spp. RESULT: From the total of 422 samples processed, 15 Enterococcus species were isolated. In this study, linezolid were the drug of choice for Enterococcus species, which showed 100% sensitive followed by vancomycin 93.3% sensitive. In contrast, highly resistance (80%) was observed for ampicillin followed by doxycycline (73.3%). All of isolated Enterococci were sensitive to linezolid, however, resistance was observed to common antibiotics. The presence of multidrug resistant Enterococci in our study should be considered as an alarm for Enterococcal infections.


Subject(s)
Anti-Bacterial Agents/pharmacology , Enterococcus/isolation & purification , Gram-Positive Bacterial Infections/microbiology , Hospitals, Teaching/statistics & numerical data , Microbial Sensitivity Tests/statistics & numerical data , Adolescent , Adult , Aged , Aged, 80 and over , Ampicillin/pharmacology , Child , Child, Preschool , Doxycycline/pharmacology , Drug Resistance, Bacterial , Ethiopia , Female , Humans , Infant , Linezolid/pharmacology , Male , Middle Aged , Prevalence , Vancomycin/pharmacology , Young Adult
11.
Article in English | MEDLINE | ID: mdl-30214719

ABSTRACT

Background: Diarrheal illness remains one of the leading causes of morbidity and mortality among children under 5 years of age worldwide, especially in developing countries. Diarrheagenic Escherichia coli (DEC) is the major cause of gastroenteritis in children in the developing world and is associated with high resistance levels to antibiotics. The aims of this study were to isolate and determine susceptibility patterns of DEC among children under 5 years of age with acute diarrhea and to assess maternal knowledge, attitude and practice towards childhood diarrhea. Methods: A cross sectional study was conducted from August-December 2015 at 3 selected health institutions. Stool samples were cultured and isolated E. coli species were run for antimicrobial susceptibility testing using disk diffusion method. In addition, children's caretakers were interviewed using structured questionnaires including a Knowledge, Attitude and Practice (KAPs) survey. Bivariate and multivariate logistic regression analysis was used to quantify the effect of different risk factors on bacterial related diarrhea. Results: A total of 253 children, 115 males and 138 females with acute diarrhea were enrolled. E. coli was identified in a total of sixty-one children (24.1%), followed by Shigella (9.1%) and Salmonella (3.95%). Additionally, eighty-six children (34.0%) had parasites identified in stool samples. E. coli isolates showed 83.6% resistance to ampicillin and augmentin followed by, trimethoprim-sulfamethoxazole (62.3%). Multiple resistances were observed in 72.1% of isolates; however, more than 90% of the strains were sensitive to ciprofloxacin and ceftriaxone. Caretakers identified the following as causes of infection: contaminated food and water (83.4%), microorganisms (55.3%), inadequate breast milk (54.1%), teething (45.1%), house flies (43.1%) and evil eye (15.8%). No hand washing before meals and low levels of knowledge had a significant association with E. coli infection (p < 0.05). Conclusion: In children with suspected diarrheagenic E. coli, we observed a high frequency of multidrug resistant E. coli. Furthermore, study subjects with low awareness about source, cause and symptoms of the disease were more likely to acquire suspected diarrheagenic E. coli infections. Thus, there is a need for more education in addition to continuous surveillance of the prevalence and antibiotic susceptibility pattern of diarrheal bacterial isolates in hospitals and in the community.


Subject(s)
Diarrhea/epidemiology , Diarrhea/microbiology , Drug Resistance, Bacterial , Escherichia coli Infections/epidemiology , Escherichia coli Infections/microbiology , Escherichia coli , Health Knowledge, Attitudes, Practice , Maternal Behavior , Ambulatory Care Facilities , Anti-Bacterial Agents/pharmacology , Child, Preschool , Cross-Sectional Studies , Culture , Escherichia coli/drug effects , Escherichia coli/isolation & purification , Ethiopia/epidemiology , Female , Humans , Infant , Infant, Newborn , Male , Microbial Sensitivity Tests , Prevalence , Public Health Surveillance , Risk Factors , Socioeconomic Factors
12.
BMC Res Notes ; 10(1): 74, 2017 Jan 31.
Article in English | MEDLINE | ID: mdl-28137314

ABSTRACT

BACKGROUND: There are few rapid point-of-care tests (POCT) for tuberculosis (TB) for use in resource-constrained settings with high levels of human immunodeficiency virus (HIV). This hinders early tuberculosis (TB) treatment. This cross-sectional study evaluates the recently developed urine Determine tuberculosis lipoarabinomannan (TB LAM) antigen test. A total of 122 participants with signs and symptoms of TB, including 21 (17.1%) participants positive for HIV, were enrolled from September 2011 to March 2012 at three selected health centers in Addis Ababa, Ethiopia. Blood, sputum and urine samples were collected. Löwenstein-Jensen (LJ) solid culture was used as a gold standard to evaluate the performance of the Determine TB LAM antigen test. Data were analyzed using STATA (Statacorp LP, USA). RESULTS: Of the 122 participants with suspected TB, 35 (28.7%) had TB confirmed bacteriologically by LJ culture. The overall sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of Determine TB LAM (for both HIV-positive and HIV-negative participants) was 37.1% (95% CI 21.5-55.1), 97.7% (95% CI 91.9-99.7), 86.7% (95% CI 59.5-98.3) and 79.4% (95% CI 70.5-86.6), respectively. However, in participants who were co-infected with TB and HIV, sensitivity, specificity, PPV and NPV were 55.6% (95% CI 21.2-86.3), 100% (95% CI 73.5-100), 100% (95% CI 47.8-100) and 75.0% (95% CI 47.6-92.7). Moreover, the level of immunosuppression of the HIV-infected TB patients was found to have a significant association with the performance of Determine TB LAM (χ2 = 7.89, p = 0.002). CONCLUSIONS: The Determine TB LAM test is a potential alternative in peripheral health settings for TB diagnosis in patients who are co-infected with HIV, with advanced immunosuppression.


Subject(s)
HIV Infections/urine , Lipopolysaccharides/urine , Point-of-Care Testing/standards , Tuberculosis/urine , Urinalysis/standards , Adult , Coinfection/urine , Comorbidity , Cross-Sectional Studies , Ethiopia/epidemiology , Female , HIV Infections/epidemiology , Humans , Male , Middle Aged , Sensitivity and Specificity , Tuberculosis/epidemiology , Young Adult
13.
BMC Infect Dis ; 13: 101, 2013 Feb 26.
Article in English | MEDLINE | ID: mdl-23442946

ABSTRACT

BACKGROUND: Toxoplasma gondii infections during pregnancy can result in abortion or congenital defects. Prevalence and risk factors of toxoplasmosis in women of child-bearing age in Ethiopia are unknown. The current study was conducted with the objectives of estimating the seroprevalence and potential risk factors in acquiring T. gondii infection by women of child-bearing age in Central Ethiopia. METHODS: A cross-sectional study was conducted from March 2011 to September 2011. Sera of 425 women were analyzed by indirect enzyme linked immunosorbent assay (ELISA). A questionnaire survey was administered for all study participants to gather information on risk factors. RESULTS: The study revealed that anti- T. gondii IgG antibodies were detected in 81.4% of the samples of which 78.4% were positive for only IgG and 3.06% positive for both IgG and IgM antibodies. Seroprevalence of IgM antibodies to T. gondii (4.0%, 95% CI: 2.14, 5.86) was suggestive of recent infections. Of the 213 pregnant women 9 (4.2 %) were IgM reactive. Out of 17 potential risk factors investigated, univariate logistic regression showed significant association of T. gondii infection with study area, age, pregnancy status, raw vegetable consumption, source of water, presence of cats at home, contact with cats, HIV status and precaution during cats' feces cleaning (P ≤ 0.05). The final logistic regression model revealed that: the probability of acquiring T. gondii infection by women of Debre-Zeit was 4.46 times (95% CI of adjusted odds ratio [aOR]: 1.67, 11.89; P =0.003) higher compared to women of Ambo, pregnant women were twice (95% CI aOR: 1.13, 3.59; P = 0.018) more likely to be seropositive than non-pregnant women and women who consume raw vegetable were at increased risk of infection (aOR = 2.21, 95% CI: 1.03, 4.78; P = 0.043) than women who didn't consume. CONCLUSION: The seroprevalence of T. gondii infection in women of child-bearing age in Central Ethiopia is high. Study area, pregnancy and raw vegetable consumption are risk factors to acquire T. gondii infection. Educational program, antenatal screening of pregnant women and further epidemiological studies to uncover the economic and health impact of toxoplasmosis are suggested.


Subject(s)
Antibodies, Protozoan/blood , Pregnancy Complications, Parasitic/epidemiology , Toxoplasmosis/epidemiology , Adolescent , Adult , Age Factors , Analysis of Variance , Cross-Sectional Studies , Enzyme-Linked Immunosorbent Assay , Ethiopia/epidemiology , Female , Humans , Immunoglobulin G/blood , Immunoglobulin M/blood , Logistic Models , Pregnancy , Pregnancy Complications, Parasitic/blood , Pregnancy Complications, Parasitic/immunology , Risk Factors , Seroepidemiologic Studies , Toxoplasmosis/blood , Toxoplasmosis/immunology , Young Adult
14.
Ethiop Med J ; 49(3): 265-71, 2011 Jul.
Article in English | MEDLINE | ID: mdl-21991760

ABSTRACT

BACKGROUND: Data was obtained from all study subjects and blood and fecal specimen were collected from all subjects who apparently volunteer to take part in the study. OBJECTIVE: To determine prevalence of hookworm infection and its association with anemia. METHODS.: A cross-sectional study was conducted from February to April 2007 in Diga District, East Wollega Zone. Hematocrit test was done on all blood samples. All stool specimens were processed with a Kato-thick method and examined for parasites and the density of parasites was determined as eggs per gram of stool (epg). Frequencies and proportions were used for the descriptive analysis of the data and Pearson Chi-square test was used to assess the associations between the demographic characteristics of the study subjects and the findings of the test samples. RESULTS: The overall prevalence of intestinal parasites was 64.9% Hookworm was the predominant (49.7%) intestinal parasite identified among the study participants. The density of hookworm egg ranged from 48 epg to 11,520 epg with mean and median values of 685 and 288 epg respectively. The observed result for hematocrit ranged from 12% to 50% with mean (SD) and median values of 34.6% (4.7) and 36% respectively. The prevalence of anemia is 65.5% among study participants. Among those subjects with hookworm, 83.9% were anemic. On the contrary only 41 (22.5%) study subjects who appeared negative for hookworm on stool examination were anemic. CONCLUSION: The prevalence of hookworm is higher and it is associated with anemia in East Wollega zone. Therefore intervention strategies should consider the concomitance of hookworm and anemia in the implementations of appropriate prevention and control strategies.


Subject(s)
Anemia/parasitology , Helminths , Hookworm Infections/epidemiology , Intestinal Diseases, Parasitic/epidemiology , Adolescent , Adult , Age Distribution , Aged , Anemia/complications , Anemia/epidemiology , Animals , Child , Child, Preschool , Cross-Sectional Studies , Ethiopia/epidemiology , Feces/parasitology , Female , Helminths/classification , Helminths/isolation & purification , Hematocrit , Hookworm Infections/complications , Hookworm Infections/diagnosis , Hookworm Infections/parasitology , Hospitals , Humans , Infant , Intestinal Diseases, Parasitic/complications , Intestinal Diseases, Parasitic/diagnosis , Male , Middle Aged , Parasite Egg Count , Prevalence , Socioeconomic Factors , Young Adult
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