scholarly journals Multidrug Resistant Acinetobacter Infection and Their Antimicrobial Susceptibility Pattern in a Nigerian Tertiary Hospital ICU.

2013 ◽  
Vol 8 (1) ◽  
Author(s):  
VU Nwadike ◽  
CK Ojide ◽  
EI Kalu
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Pizga Kumwenda ◽  
Emmanuel C. Adukwu ◽  
Ebot S. Tabe ◽  
Victor. C. Ujor ◽  
Pocha S. Kamudumuli ◽  
...  

Abstract Background Bacterial infections are a significant cause of sickness and death in sub-Saharan Africa. This study aimed at establishing the prevalence, distribution and antimicrobial susceptibility pattern of major bacterial isolates from patients accessing medical care at a tertiary hospital in Malawi. Methods We retrospectively reviewed bacteria culture and antimicrobial susceptibility records for 4617 patients from 2002 to 2014 at Mzuzu Central Hospital (MCH). No inclusion and exclusion criteria were followed. Data was analysed using excel (Microsoft office, USA) and GraphPad prism 7 software programs. Results The most prevalent isolates were S. aureus (34.7%, n = 783), Klebsiella species (17.4%, n = 393) and Proteus species (11.4%, n = 256). Most microorganisms were isolated from adults (88.3%, n = 3889) and pus was the main source (69.3%, n = 1224). S. pneumoniae was predominantly isolated from cerebrospinal fluid (60.3%, n = 44) largely collected from children (88.2%, n = 64). Overall, most bacteria exhibited high resistance to all regularly used antimicrobials excluding ciprofloxacin. Conclusions Our report demonstrates an increase in bacterial infection burden in sites other than blood stream and subsequent increase in prevalence of antimicrobial resistance for all major isolates. Creating an epidemiological survey unit at MCH will be essential to help inform better treatment and management options for patients with bacterial infections.


2021 ◽  
Vol 8 (3) ◽  
pp. 224-229
Author(s):  
Kiranjeet Kaur ◽  
Shavetika Jindal

Healthcare associated pneumonia (HAP)is second most common HCAIs that occur in 27% critically ill patients. Eighty-six percent of HAP are associated with mechanical ventilation and termed as ventilator associated pneumonia (VAP). VAP due to multidrug resistant has also increased in recent past. To isolate and identify the bacterial pathogens in endotracheal tubes aspirates of ICUs patients and study their antimicrobial susceptibility pattern.A prospective longitudinal study was conducted in the Microbiology laboratory of a tertiary care hospital over a period of six months after clearance from institutional Research Committee and Ethical Committee. All the samples of ETT secretions received in Clinical Microbiology lab from ICU patients and fulfilling the criteria for VAP were included in this study. Samples were processed as per standard protocol and organisms were identified on the basis of gram staining, colony characters and biochemical tests. Antibiotic sensitivity was performed by Kirby Bauer disc diffusion method as per CLSI guidelines. : A total of 100 samples of ET secretions were collected and proceeded for culture. Out of 100 samples, 76 (76.0%) were positive for bacterial growth. Among 76 positive cultures, a total 80 bacterial isolates were obtained as some cultures were showing polymicrobial growth. Five (6.26%) isolates were Gram Positive bacteria and 75(93.7%) were Gram negative. The most frequent isolates were 35(43.7%) followed by , isolates were sensitive to colistin while resistant to ampicillin and amoxiclav. isolates were sensitive to colistin and resistant to ampicillin, amoxiclav, ciprofloxacin, cefixime, piperacillin tazobactam. isolates were sensitive to colistin while resistant to ampicillin, amoxiclav, ceftizidime and piperacillin tazobactam. In our study antimicrobial pattern of isolated bacteria shows multidrug resistant pathogens which are associated with VAP and limit therapeutic options.


2020 ◽  
Author(s):  
Pizga Kumwenda ◽  
Emmanuel C. Adukwu ◽  
Ebot S. Tabe ◽  
Victor C Ujor ◽  
Pocha S. Kamudumuli ◽  
...  

Abstract Background Bacterial infections are a significant cause of sickness and death in sub-Saharan Africa. This study aimed at establishing the prevalence, distribution and antimicrobial susceptibility pattern of major bacterial isolates from patients accessing medical care at a tertiary hospital in Malawi. Methods We retrospectively reviewed bacteria culture and antimicrobial susceptibility records for 4,617 patients from 2002 to 2014 at Mzuzu Central Hospital (MCH). No inclusion and exclusion criteria were followed. Data was analysed using excel (Microsoft office, USA) and GraphPad prism 7 software programs. Results The most prevalent isolates were S. aureus (34.7%, n = 783), Klebsiella species (17.4%, n = 393) and Proteus species (11.4%, n = 256). Most microorganisms were isolated from adults (88.3%, n = 3889) and pus was the main source (69.3%, n = 1224). S. pneumoniae was predominantly isolated from cerebrospinal fluid (60.3%, n = 44) largely collected from children (88.2%, n = 64). Overall, most bacteria exhibited high resistance to all regularly used antimicrobials excluding ciprofloxacin. Conclusions Our report demonstrates an increase in bacterial infection burden in sites other than blood stream and subsequent increase in prevalence of antimicrobial resistance for all major isolates. Creating an epidemiological survey unit at MCH will be essential to help inform better treatment and management options for patients with bacterial infections.


2021 ◽  
Vol 12 ◽  
Author(s):  
Aklilu Feleke Haile ◽  
Silvia Alonso ◽  
Nega Berhe ◽  
Tizeta Bekele Atoma ◽  
Prosper N. Boyaka ◽  
...  

Escherichia coli O157:H7 is an important foodborne pathogen but largely under investigated in Africa. The objectives of this study were to estimate the prevalence and pattern of antimicrobial resistance of E. coli O157:H7 in lettuce in Addis Ababa, Ethiopia. A total of 390 retail lettuce samples were collected across the 10 subcities of Addis Ababa. E. coli O157:H7 was isolated and identified following ISO-16654:2001 standard. The isolates were further tested for antimicrobial susceptibility to 13 antimicrobials using the Kirby–Bauer disk diffusion method. Out of the 390 lettuce samples examined, two (0.51%) carried E. coli O157:H7. The antimicrobial susceptibility pattern of strains showed resistance to ampicillin (100%) and tetracycline (50.0%). One of the two isolates was multidrug resistant to two antimicrobials tested. The results of this study demonstrate the presence of drug-resistant E. coli O157:H7 in lettuce in markets in Addis Ababa. Despite the low prevalence, its presence in a product that is eaten raw highlights potential public health risk in the area associated with this pathogen.


2020 ◽  
Author(s):  
Master Chisale ◽  
Pizga Kumwenda ◽  
Emmanuel C. Adukwu ◽  
Ebot S. Tabe ◽  
Victor C Ujor ◽  
...  

Abstract BackgroundBacterial infections are a significant cause of sickness and death in sub-Saharan Africa. This study aimed at establishing the prevalence, distribution and antimicrobial susceptibility pattern of major bacterial isolates from patients attending a tertiary hospital in Malawi. MethodsWe retrospectively reviewed bacteria culture and antibiotic sensitivity records for 4,617 patients from 2002 to 2014 at Mzuzu Central Hospital (MCH). No inclusion and exclusion criteria were followed. Data was analysed using excel and SPSS programs. ResultsThe most prevalent isolates were S. aureus (34.7%, n= 783), Klebsiella species (17.4%, n= 393) and Proteus species (11.4%, n = 256). Most pathogens were isolated from adults (88.3%, n=3889) and pus was the main source (69.3%, n = 1224). S. pneumoniae was predominantly isolated from cerebrospinal fluid (60.3%, n = 44) largely collected from children (88.2%, n =64). Overall, most bacteria exhibited high resistant to all regularly used antibiotics excluding ciprofloxacin. ConclusionsOur report demonstrates an increase in bacteria burden in sites other than the blood stream and subsequent increase in prevalence of antimicrobial resistance for all major isolates. Creating an epidemiological survey unit at MCH will be essential to help inform better treatment and management options for patients with bacterial infections.


2019 ◽  
Vol 66 (2) ◽  
Author(s):  
Pallavi Baliga ◽  
Malathi Shekar ◽  
Shaik Thahur Ahamed ◽  
M. N. Venugopal

Vibrio parahaemolyticus is a pathogen native to the aquatic environment. In this study, 46 environmental V. parahaemolyticus isolates were subjected to a correlational analysis to find the association between their antimicrobial susceptibility pattern, prevalence of CRISPR-Cas system and thermostable direct hemolysin (tdh) gene. Antibiotic resistance profiling against eleven antibiotics revealed the isolates to be multidrug resistant. Isolates exhibited highest resistance to vancomycin (97.8%) followed by ampicillin (91.3%), cefotaxime (69.6%), ceftazidime/clavulanic acid (54.4%), ceftazidime (45.7%) and gentamicin (39.1%). CRISPR loci and tdh gene were detected in 47.83 and 58.7% of strains respectively. No significant correlation was observed between antibiotic resistance to presence of CRISPR, except in the case of gentamicin wherein, a negative correlation was seen (r=-0.272, p<0.10). Similarly, tdh did not correlate to antibiotic resistance. Seventeen strains in this study harboured the CRISPR loci as well as tdh gene, the association of which was found to be statistically significant.


2021 ◽  
Author(s):  
Pizga Kumwenda ◽  
Emmanuel C. Adukwu ◽  
Ebot S. Tabe ◽  
Victor C Ujor ◽  
Pocha S. Kamudumuli ◽  
...  

Abstract Background Bacterial infections are a significant cause of sickness and death in sub-Saharan Africa. This study aimed at establishing the prevalence, distribution and antimicrobial susceptibility pattern of major bacterial isolates from patients accessing medical care at a tertiary hospital in Malawi. Methods We retrospectively reviewed bacteria culture and antimicrobial susceptibility records for 4,617 patients from 2002 to 2014 at Mzuzu Central Hospital (MCH). No inclusion and exclusion criteria were followed. Data was analysed using excel (Microsoft office, USA) and GraphPad prism 7 software programs. Results The most prevalent isolates were S. aureus (34.7%, n = 783), Klebsiella species (17.4%, n = 393) and Proteus species (11.4%, n = 256). Most microorganisms were isolated from adults (88.3%, n = 3889) and pus was the main source (69.3%, n = 1224). S. pneumoniae was predominantly isolated from cerebrospinal fluid (60.3%, n = 44) largely collected from children (88.2%, n = 64). Overall, most bacteria exhibited high resistance to all regularly used antimicrobials excluding ciprofloxacin. Conclusions Our report demonstrates an increase in bacterial infection burden in sites other than blood stream and subsequent increase in prevalence of antimicrobial resistance for all major isolates. Creating an epidemiological survey unit at MCH will be essential to help inform better treatment and management options for patients with bacterial infections.


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