scholarly journals Escherichia coli Antimicrobial Susceptibility Reduction amongst HIV-Infected Individuals at the University Teaching Hospital, Lusaka, Zambia

Author(s):  
Freeman Chabala ◽  
Mutinta Madubasi ◽  
Mable Mwale Mutengo ◽  
Njeleka Banda ◽  
Kaunda Yamba ◽  
...  

Increased antimicrobial resistance among Human Immunodeficiency Virus (HIV)-infected individuals to commonly used antibiotics in the treatment of gastroenteritis is a public health concern, especially in resource-limited settings. We set out to compare the antimicrobial susceptibility pattern of Escherichia coli (E. coli) isolates from HIV-infected and HIV-uninfected individuals at a tertiary hospital in Lusaka, Zambia. An analytical cross-sectional study was conducted at the University Teaching Hospital from May 2019 to August 2019. Stool samples were screened, and 79 HIV-infected individuals matched by age and sex with 84 HIV-uninfected individuals that presented with E. coli associated gastroenteritis were studied. Demographics were collected from the Laboratory Information System (LIS) and stool samples were collected in a sterile leak-proof container. Samples were cultured and only those where E. coli was isolated were included in the study and tested for antimicrobial susceptibility by the Kirby–Bauer disk diffusion technique. HIV-positive individuals were 3 times (adjusted odds ratio (AOR) = 3.17; 95% CI (1.51, 6.66); p < 0.001) more likely to be resistant to quinolones compared with their HIV-negative counterparts. Similarly, HIV-positive individuals were almost 4 times (AOR = 3.97, 95% CI (1.37, 11.46); p = 0.011) more likely to have multidrug-resistant E. coli compared with those who were HIV-negative. HIV infection was associated with reduced E. coli susceptibility to commonly used antibiotics, and most cases showed resistance.

2021 ◽  
Vol 8 (3) ◽  
pp. 132-142
Author(s):  
Ezeugwunne Ifeoma Priscilla ◽  
Amaifeobu Clement ◽  
Meludu Samuel Chukwuemeka ◽  
Analike Rosemary Adamma ◽  
Nnamdi Johnjude Chinonso ◽  
...  

This study evaluated the microalbumin, cystatin C, creatinine and uric acid levels in HIV patients in Nnamdi Azikiwe University Teaching Hospital, Nnewi (NAUTH). A total of one hundred (100) male and female HIV positive and control participants who were aged between 18 and 60 years attending the voluntary counseling and testing unit (VCT) and antiretroviral therapy unit (ART) of NAUTH were randomly recruited for the study and grouped thus: Group A (HIV positive symptomatic participants on long term ART (HPSPLTART) (n= 25); Group B (HIV positive symptomatic participants on short term ART (HPSPSTART) (n= 25); Group C: Asymptomatic HIV positive participants NOT on ART (AHPPNART) (n=25) and Group D: control (n=25).6mls of blood sample and 10mls of freshly voided urine samples were collected from each of the participants for the evaluation of biochemical parameters using standard laboratory methods. Results showed significantly higher BMI and SBP in HPSPSTART than in control (p=0.04; 0.02). SBP was significantly higher in HPSPLTART than in AHPPNART and Control (p=0.00). DBP was significantly higher in HPSPLTART than in HPSPSTART and control respectively (p=0.00). There were significantly higher plasma creatinine and Cys-C levels in both male HIV positives and male HIV positive participants on ART than in both females respectively (p0.00; 0.02). Also, BMI, creatinine, uric acid and Cystatin C levels were significantly higher in male HIV negative participants than in female HIV negative participants (p=0.00; 0.04; 0.02; 0.01). This study has revealed greater risk for renal disease among the HIV participants studied.


Author(s):  
Dele Ohinoyi Amadu ◽  
Charles Nwabuisi ◽  
Yahaya Usman ◽  
Jelili Olaide Mustapha ◽  
Idris Nasir Abdullahi ◽  
...  

Background and Aims: Uropathogenic Escherichia coli (UPEC) are considered major reservoir for genes encoding antimicrobial resistance. The mechanism of resistance and persistence of UPEC has been attributed to the production of biofilm and Extended Beta Lactamase (ESBL). This hospital-based prospective study determined how biofilm and ESBL production facilitate antibacterial resistance amongst UPEC isolated from catheter urine of patients attending the University of Ilorin Teaching Hospital, Nigeria.  Materials and Methods: Urine samples from 113 catheterized inpatients and outpatients were analysed. Female subjects accounted for 47 (41.6%) of the study population. Standard microbiological methods and Analytical Profile Index (API) 20E were used for the isolation and identification of UPEC. Tissue culture plate technique was used to demonstrate biofilm production potentials and double-disc synergy test was used to determine ESBL production. Results: Catheter associated urinary tract infection in this study was 70.8% of samples analysed. Of this, Escherichia coli, 44 (55.0%) was the most predominant. UPEC, biofilm and ESBL production amounted to 38.9%, 81.8% and 27.2%, respectively. ESBL production was significantly associated with degree of biofilm formation (p<0.005). Both strong and moderate biofilm producers showed the same level of resistance to ceftazidime (31.6%). Moderate biofilm producers were 46.7% resistant to cefriaxone. Resistance to Amoxillin-clauvanate significantly occurred in all grades of biofilm producers (p>0.05). Imipenem, however, was the most sensitive with no resistance by the UPEC.  Conclusions: ESBL and biofilm production were associated with antibacterial resistance. The incidence of ESBL production amongst biofilm forming UPEC is of great public health concern.


Author(s):  
Md. Kauser-Ul Alam ◽  
Shireen Akther ◽  
Nazmul Sarwar ◽  
Shamsul Morshed ◽  
Goutam Kumar Debnath

Escherichia coli is an emerging public health concern in most countries of the world. It is an important cause of food-borne human disease. The present study assessed the prevalence and determined the antibiotic resistance patterns of E. coli from raw milk marketed in Chittagong, Bangladesh. Of the raw milk marketed in Chittagong ~33(18%) of the 186 raw milk samples of it contains E. coli, indicator bacteria for any enteric pathogens. The mean viable count of total bacteria was 4.04×108 cfu/ml and the mean viable count of E. coli in the contaminated raw milk was 1.88×106 cfu/ml. E. coli from only six (18.2%) of the 33 positive samples yielded colourless colonies across the CT-SMAC, suggesting the probable presence of populations belonging to the serotype O157 and rest of the isolates 27 (81.82%) produced coloured colony on CT-SMAC considering the probable presence of populations belonging to the serotype non-O157. Growth of probable E. coli O157, as evidenced by the colourless colonies on CT-SMAC compared to coloured colonies from other bacteria. Confirmed isolates were further subjected to antimicrobial susceptibility test using the Agar disc diffusion technique. Antibiotics susceptibility profile showed that all the isolates in case of E. coli O157, penicillin (100%), tetracycline (100%), amoxicillin (83.33%) and erythromycin (83.33%) were the most resistant whereas ciprofloxacin (66.67%), gentamicin (50.0%), and streptomycin (50.0%) were the most sensitive antibiotics. In case of E.coli non-O157 susceptibility profile showed that chloramphenicol (40.74%), erythromycin (40.74%) and oxacillin (37.04%) were the most resistant whereas ciprofloxacin (70.37%), sulphamethoxazole/trimethoprim (S/T) (59.26%) and gentamycin (55.55%) were the most sensitive antibiotics. The antimicrobial resistance exhibited by E. coli O157and non-O157 strains in this study is an indication of possible antibiotic abuse.


2020 ◽  
Author(s):  
Emmanuel Chirwa ◽  
Georgina Mulundu ◽  
Kunda Ndashe ◽  
Kalo Kanongesha ◽  
Kaziwe Simpokolwe ◽  
...  

Urinary tract infections caused by Extended Spectrum Beta-Lactamase producing Escherichia coli are increasing globally and yet treatment still remains a challenge due to antibiotic resistance of the causative agent. The aim of the study was to determine the antimicrobial susceptibility pattern and detect the presence of blaCTX-M gene in Escherichia coli isolated from urinary tract infection patients at the University Teaching Hospital, Lusaka, Zambia. This was a cross-sectional study that involved the collection of urine samples from patients who were diagnosed with urinary tract infections. The samples were cultured on MacConkey agar complemented with cefotaxime and Polymerase Chain Reaction was performed to confirm the Extended-Spectrum Beta-Lactamase producers by detecting the CTX-M gene. Antimicrobial susceptibility tests were conducted using standard methods. A total of 327 urine samples were cultured and 15 (4.6%) of these samples were positive ESBL producers. The isolates showed complete resistance to ampicillin and cotrimoxazole. Multi drug-resistant Extended Spectrum Beta-Lactamase producing Escherichia coli was detected in 4.6 % of UTI patients at the University Teaching Hospital.


Author(s):  
C. M. Vincent ◽  
O. B. da Lilly-Tariah ◽  
L. O. Onotai ◽  
N. I. Paul

Background: HIV is a worldwide disease and affects all systems of the body. Despite the high burden of Paediatric HIV in Nigeria, few studies have been done on Otolaryngological disorders in children living with HIV. This study aimed to determine the pattern and prevalence of Otorhinolaryngological disorders among HIV positive paediatric patients and to compare them with age and sex-matched control. Methods: This was a descriptive cross-sectional case-control study carried out among 130 HIV positive and 130 HIV negative children aged 6 to 15 years at the University of Port Harcourt Teaching Hospital (UPTH). Eligible patients were recruited via a systematic sampling method and matched with HIV negative controls and an interviewer-administered questionnaire was used to extract relevant information. All patients had Otorhinolaryngological examination and CD4 count determination, while children with tonsillar enlargement underwent X-ray of the post nasal space. HIV patients were graded for severity using WHO clinical Staging. Results: A higher proportion of the HIV positive patients had allergic rhinitis (66.9% vs.30.8%, p=0.01), pharyngitis (40.8% vs.18.5%, p=0.01), tonsillitis (34.6% vs.20.8%, p=0.013), adenotonsilar disease (24.6% vs. 13.8%, p=0.028), cervical lymphadenopathy (15.4% vs. 5.4%, p=0.001) and otitis media (5.4% vs. 0.8%, p=0.031). There was a significantly higher prevalence of ORL disorders among HIV positive children (95.4%) compared to HIV negative children (78.5%). (P=0.001). Conclusion: Pattern of ORL disorder appeared similar in both HIV-positive and -negative children. However, the overall high prevalence of the findings among the HIV-positive children required regular ORL assessment in these children.


2020 ◽  
Vol 2 (1) ◽  
pp. 76-80
Author(s):  
Ella Larissa Ndoricyimpaye ◽  
Tuyishime Obed ◽  
Habiyakare Jean Claude ◽  
Manishimwe Jean d’Amour ◽  
Ntwali Denyse ◽  
...  

2019 ◽  
Vol 152 (Supplement_1) ◽  
pp. S130-S131
Author(s):  
Kayode Faseyi ◽  
Jaiyeola Onifade

Abstract Objectives This work was carried out to find the incidence of enteropathogenic Escherichia coli in children below 5 years of age who complained of having diarrhea at Eleyele Comprehensive Health Centre, Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife. The work was also done to determine the incidence in different age groups of both sexes. Methods All specimens were cultured as routinely done at the bacteriology laboratory in Obafemi Awolowo University Teaching Hospital for stool samples. Colonies of lactose fermenters were processed after overnight incubation at 37°C. Nonlactose fermenter colonies were discarded. Out of 200 colonies isolates on MacConkey agar, there were 150 lactose fermenters and these were all processed. The other 70, which were Gram-positive cocci, were discarded. These were subjected to biochemical examination such as treating them with sugars, for the production of acid and gas, indole production, motility with sugars, citrate utilization, Voges-Proskauer, and methyl red tests. Results Out of 150 strains examined, only 80 strains obeyed IMVic ++ -- reactions. These were serotyped to know the enteropathogenic strains. From the result obtained, 23 strains reacted positively with polyvalent antisera (polyvalent 2, 3, 4 antisera), of which 13 strains gave a positive reaction with corresponding monovalent antisera. There were five strains from polyvalent 2 antisera, five strains from polyvalent 3 antisera, and three strains from polyvalent 4 antisera. In close study of this work, total percentage of females with diarrhea was 44.5% while total percentage of males with diarrhea was 55.5%. Out of these 80, E coli was isolated, and from these, 13 enteropathogenic E strains were isolated (16.25%). Patient aged below 2 years gave nine strains (69.2%), aged 2 to 3 years gave two strains (15.4%), aged 3 to 4 years gave one strain (7.7%), and aged 4 to 5 years gave one strain (7.7%). Also, close examination of result revealed that male children had the greater percentage of enteropathogenic infection, with 8 strains out of the 13 strains serotyped (61.5%) and female children with 5 strains (38.5%). Conclusion E coli remains an important cause of infant diarrhea. Although epidemics of infant diarrhea caused by enteropathogenic E coli have almost disappeared from the developed countries, it is still very common in developing countries. The relative importance of enteropathogenic E coli as a cause of infant diarrhea needs to be reassessed and new diagnostic techniques will also help to simplify this task.


Author(s):  
Abimbola Olumide Adekanmbi ◽  
Sandra Usidamen ◽  
Anthony Abiodun Onilude

AbstractInfection of the urinary tract ranks as one of the most common infections affecting people worldwide and its treatment is made complicated by the rising incidence of antibiotic resistance. This study aimed to detect extended spectrum beta-lactamase (ESBL) genes and antibiotic resistance profile of uropathogenic Escherichia coli (E. coli) recovered from patients attending a University Teaching hospital in Nigeria. Uropathogenic E. coli isolates were obtained from the culture collection of Department of Microbiology and Parasitology of the University Teaching hospital for a period of four months (October 2019–January, 2020). Antibiotic susceptibility testing was done using the disc diffusion method while phenotypic ESBL production was detected using double disc synergy test (DDST). Detection of β-lactamase genes was done using Real-Time PCR. Forty-nine E. coli isolates were recovered from 120 urine samples, with 24 (49%) being ESBL positive. The resistance to antibiotics in the ESBL producers was: ciprofloxacin (100%), cefotaxime (100%), cefpodoxime (100%), tetracycline (95.7%), ceftazidime (56.7%), amoxicillin-clavulanate (50%), gentamicin (33.3%), and imipenem (0%). All the ESBL producers carried blaTEM, blaCTX-M-1 and blaCTX-M-9, 75% (18/24) carried blaSHV, while blaCTX-M-2, blaCTX-M-8 and blaCTX-M-25 groups were detected in 20.8% (5/24) of the isolates. There was co-occurrence of CTX-M, SHV and TEM β-lactamases in 79.2% (19/24) isolates, while five isolates (20.8%) co-harbored blaCTX-M and blaTEM. This study showed a high level of multidrug resistance and ESBL gene carriage in uropathogenic E. coli obtained in this study, suggesting a likely review of therapeutic options in the treatment of UTI to clamp down on the rising cases of antibiotic resistance.


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