scholarly journals Antimicrobial resistant and enteropathogenic bacteria in ‘filth flies’: a cross-sectional study from Nigeria

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Francis Chinedu Onwugamba ◽  
Alexander Mellmann ◽  
Victor Oluoha Nwaugo ◽  
Benno Süselbeck ◽  
Frieder Schaumburg
Keyword(s):  
Food Poisoning ◽  
Common Species ◽  
Cross Sectional Study ◽  
Resistant Bacteria ◽  
Intestinal Colonization ◽  
Sectional Study ◽  
Cross Sectional ◽  
Enteropathogenic Bacteria ◽  
Filth Flies ◽  
Southern Nigeria

Abstract ‘Filth flies’ facilitate the dispersal of pathogens between animals and humans. The objective was to study the intestinal colonization with antimicrobial resistant and enteropathogenic bacteria in ‘filth flies’ from Nigeria. Flies from Southern Nigeria were screened for extended-spectrum β-lactamase producing Enterobacterales (ESBL-E), Staphylococcus aureus, Salmonella sp., Shigella sp., Campylobacter sp. and Yersinia enterocolitica by culture. ESBL-E were tested for blaSHV, blaCTX-M and blaTEM; S. aureus was screened for enterotoxins. Spa typing and multilocus sequence typing (MLST) was done for S. aureus and MLST for Escherichia coli. Of 2,000 flies, 400 were randomly collected for species identification. The most common species were Musca domestica (44.8%, 179/400), Chrysomya putoria (21.6%, 85/400) and Musca sorbens (18.8%, 75/400). Flies were colonized with S. aureus (13.8%, 275/2,000) and ESBL-E (0.8%, 16/2,000). No other enteropathogenic bacteria were detected. The enterotoxin sei was most common (26%, 70/275) in S. aureus, followed by sea (12%, n = 32/275). Four S. aureus isolates were methicillin resistant (mecA positive, t674 and t5305, ST15). The blaCTX-M (n = 16) was the most prevalent ESBL subtype, followed by blaTEM (n = 8). ‘Filth flies’ can carry antimicrobial resistant bacteria in Nigeria. Enterotoxin-positive S. aureus might be the main reason for food poisoning by ‘filth flies’ in the study area.

Biodiversity of Medically Important Calyptratae Flies (Diptera: Schizophora) in Hospitals in the Northern Coastline of the Persian Gulf, Iran

2019 ◽  
Vol 57 (3) ◽  
pp. 766-771
Author(s):  
Alireza Sanei-Dehkordi ◽  
Moussa Soleimani-Ahmadi ◽  
Abdolrahim Cheshmposhan ◽  
Kamran Akbarzadeh
Keyword(s):  
Diversity Indices ◽  
Cross Sectional Study ◽  
Similar Data ◽  
Sectional Study ◽  
Cross Sectional ◽  
Filth Flies ◽  
Hospital Environments ◽  
The Persian Gulf ◽  
Sanitary Conditions ◽  
Fannia Canicularis

Abstract Domestic filth flies play a significant role in the transmission of nosocomial infections and cause nosocomial myiasis in hospitals worldwide. This descriptive cross-sectional study was conducted in five hospitals of the Hormozgan province, of southern Iran. Adult flies were collected by bottle fly traps. Specimens were pinned and morphologically identified using the relevant keys. Species biodiversity indices including Menhinick (M), Shannon–Wiener (H’), Pielou’s Evenness (E), and Simpson’s diversity (D) were calculated. Totally 2,298 individuals of 18 species of flies belonging to nine genera and four families were collected. Chrysomya megacephala was the most frequent species (37.3%), followed by Chrysoma albiceps (24.8%), Fannia canicularis (5.1%), Musca domestica (4.8%), Sarcophaga aegyptica (3.7%), and 15 other species (24.4%). Our results show a high diversity and abundance of domestic filth flies in the studied hospitals. Relatively similar data derived from various hospitals in this study can show the uniformity in sanitary conditions of hospitals. On the other hand, estimation of diversity indices alarmed for potential of dominant species in fly communities in hospital environments.

scholarly journals Prevalence of aerobic pathogenic bacteria isolated from patients with burn infection and their antimicrobial susceptibility patterns in Al-Najaf City, Iraq- a three-year cross-sectional study.

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 1157 ◽  
Author(s):  
Ahmed Abduljabbar Jaloob Aljanaby ◽  
Israa Abduljabbar Jaloob Aljanaby
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Cross Sectional Study ◽  
Diffusion Method ◽  
Resistant Bacteria ◽  
Drug Resistant ◽  
Bacterial Isolates ◽  
Sectional Study ◽  
Cross Sectional ◽  
Extended Spectrum ◽  
Drug Resistant Bacteria

Background: Burn infections are one of the most common serious illnesses caused by pathogens, mainly by both gram-negative and gram-positive bacteria. The aim of this study was to detect of the prevalence of multi-drug resistant and extended-spectrum β-lactamase-producing (ESBL) bacteria isolated from inpatients with burn infection and the antimicrobials sensitivity patterns of all bacterial isolates during three years. Methods: This cross-sectional study was performed in Al-Najaf Central Hospital in Al-Najaf City, Iraq from January 2015 to December 2017. A total of 295 burns swabs were collected from hospitalized patients with burn infection. All grown bacterial isolates were identified by standardized microbiological tests. Antimicrobials susceptibility testing was done using the disc diffusion method. Multi-drug, extensive-drug and pan-drug resistant bacteria and extended-spectrum β-lactamase-producing bacteria were determined according to standardized methods and guidelines. Results: Of the 295 burn swabs, 513 different bacteria strains were isolated. Pseudomonas aeruginosa was the most common bacteria with 142 isolates (27.6%) followed by methicillin resistance Staphylococcus aureus 106 isolates (20.6%), while Staphylococcus typhi was the least common bacteria with only 17 isolates (3.3%). 323 (63%) different bacterial strains were isolated from patients who stayed in hospital for 15 days. Most bacterial isolates were resistant to most antimicrobials with high percentages. Out of the 513 bacterial isolates; only 33 isolates (6.4%) were resistant to imipenem 10µg and 464 isolates (90.4%) were multi-drug resistant, 20 isolates (14%) were extensive-drug resistant and 17 isolates (3.3%) were pan-drug resistant. Pseudomonas aeruginosa was the most common ESBL-producing bacteria (51 isolates-35.9%). Conclusions: There was a high prevalence of multi-drug resistant bacteria in burn infection in Al-Najaf hospital. Pseudomonas aeruginosa was the most common multi-drug resistant bacteria, and the most common of ESBL bacteria causing burn infection over the three years.

Evaluation of knowledge, attitude, and practice of women about foodborne diseases: a cross-sectional study in Khuzestan, Iran

2021 ◽  
Author(s):  
Zahra Golchinfar ◽  
Mahnaz Tabibiazar
Keyword(s):  
Food Poisoning ◽  
Cross Sectional Study ◽  
Main Role ◽  
Sectional Study ◽  
Cross Sectional ◽  
Attitudes And Practices ◽  
Food Borne ◽  
High Level ◽  
High Degree ◽  
And Training

Food-borne diseases are important globally because they cause significant death and treatment costs in the world. In this study, the researchers used a validated and trusted questionnaire to carry out this cross-sectional study of 384 women from Ahvaz, Khuzestan, Iran, recruited through stratified random selection. The main objective of the study was to examine the knowledge, attitudes, and practices of women (KAP) in Ahvaz, which played the main role in the preparation of food at home. Women exhibited a high level of KAP when it came to the most significant variables linked with food poisoning. The attitudes and practices of women, as well as their knowledge, were linked. Our findings revealed that the women in Ahvaz had a high degree of knowledge about how to protect themselves from food-borne illnesses; Some practices, however, posed a risk to food safety. More knowledge and training about the risks of consuming raw or semi-processed foods are required.

scholarly journals Assessment of antibiotic- and disinfectant-resistant bacteria in hospital wastewater, south Ethiopia: a cross-sectional study

2015 ◽  
Vol 9 (02) ◽  
pp. 149-156 ◽  
Author(s):  
Sintayehu Fekadu ◽  
Yared Merid ◽  
Hunachew Beyene ◽  
Wondu Teshome ◽  
Solomon Gebre-Selassie
Keyword(s):  
Pathogenic Bacteria ◽  
Cross Sectional Study ◽  
Diffusion Method ◽  
Resistant Bacteria ◽  
Dilution Method ◽  
Agar Dilution Method ◽  
Hospital Wastewater ◽  
Sectional Study ◽  
Cross Sectional ◽  
Wide Range

Introduction: Large quantities of antimicrobials are used in hospitals for patient care and disinfection. Antibiotics are partially metabolized and residual quantities reach hospital wastewater, exposing bacteria to a wide range of biocides that could act as selective pressure for the development of resistance. Methodology: A cross-sectional study was conducted between December 2010 and February 2011 on hospital wastewater. A total of 24 composite samples were collected on a weekly basis for bacteriological analysis and susceptibility testing. Indicator organisms and pathogenic and potentially pathogenic bacteria were found and isolated on selective bacteriologic media. Disinfectant activity was evaluated by use-dilution, and minimum inhibitory concentration (MIC) was determined by the agar dilution method. Similarly, antibiotic susceptibility tests were performed using the Kirby-Bauer disk diffusion method. Results: Pathogenic (Salmonella, Shigella, and S. aureus) and potentially pathogenic (E. coli) bacteria were detected from effluents of both hospitals. Dilution demonstrated tincture iodine to be the most effective agent, followed by sodium hypochlorite; the least active was 70% ethanol. MIC for ethanol against S. aureus and Gram-negative rods from Yirgalem Hospital (YAH) showed 4 and 3.5 log reduction, respectively. Salmonella isolates from YAH effluent were resistant to ceftriaxone, tetracycline, and doxycycline. Isolates from Hawassa University Referral Hospital (HURH) effluent were resistant to the above three antibiotics as well as gentamycin. Conclusions: Hospital effluents tested contained antibiotic-resistant bacteria, which are released into receiving water bodies, resulting in a threat to public health.

Novel method of calculating adjusted antibiotic use by microbiological burden

2021 ◽  
pp. 1-6
Author(s):  
Hana R. Winders ◽  
Majdi N. Al-Hasan ◽  
Bruce M. Jones ◽  
Darrell T. Childress ◽  
Kayla R. Stover ◽  
...  
Keyword(s):  
Antibiotic Use ◽  
Cross Sectional Study ◽  
Resistant Bacteria ◽  
Bacterial Isolates ◽  
Sectional Study ◽  
Cross Sectional ◽  
Vancomycin Resistant Enterococci ◽  
Days Of Therapy ◽  
Novel Method ◽  
Vancomycin Resistant

Abstract Objective: To determine the usefulness of adjusting antibiotic use (AU) by prevalence of bacterial isolates as an alternative method for risk adjustment beyond hospital characteristics. Design: Retrospective, observational, cross-sectional study. Setting: Hospitals in the southeastern United States. Methods: AU in days of therapy per 1,000 patient days and microbiologic data from 2015 and 2016 were collected from 26 hospitals. The prevalences of Pseudomonas aeruginosa, extended-spectrum β-lactamase (ESBL)–producing bacteria, methicillin-resistant Staphylococcus aureus (MRSA), and vancomycin-resistant enterococci (VRE) were calculated and compared to the average prevalence of all hospitals in the network. This proportion was used to calculate the adjusted AU (a-AU) for various categories of antimicrobials. For example, a-AU of antipseudomonal β-lactams (APBL) was the AU of APBL divided by (prevalence of P. aeruginosa at that hospital divided by the average prevalence of P. aeruginosa). Hospitals were categorized by bed size and ranked by AU and a-AU, and the rankings were compared. Results: Most hospitals in 2015 and 2016, respectively, moved ≥2 positions in the ranking using a-AU of APBL (15 of 24, 63%; 22 of 26, 85%), carbapenems (14 of 23, 61%; 22 of 25; 88%), anti-MRSA agents (13 of 23, 57%; 18 of 26, 69%), and anti-VRE agents (18 of 24, 75%; 15 of 26, 58%). Use of a-AU resulted in a shift in quartile of hospital ranking for 50% of APBL agents, 57% of carbapenems, 35% of anti-MRSA agents, and 75% of anti-VRE agents in 2015 and 50% of APBL agents, 28% of carbapenems, 50% of anti-MRSA agents, and 58% of anti-VRE agents in 2016. Conclusions: The a-AU considerably changes how hospitals compare among each other within a network. Adjusting AU by microbiological burden allows for a more balanced comparison among hospitals with variable baseline rates of resistant bacteria.

scholarly journals Bacterial profile and their antimicrobial susceptibility patterns in patients admitted at MaddaWalabu University Goba Referral Hospital, Ethiopia: a cross sectional study

2021 ◽  
Vol 21 (2) ◽  
pp. 513-522
Author(s):  
Meseret Mitiku Gemechu ◽  
Tesfaye Assefa Tadesse ◽  
Getahun Negash Takele ◽  
Fithamlak Solomon Bisetegn ◽  
Yonas Alem Gesese ◽  
...  
Keyword(s):  
Antimicrobial Susceptibility ◽  
Cross Sectional Study ◽  
Referral Hospital ◽  
Resistant Bacteria ◽  
Sectional Study ◽  
Cross Sectional ◽  
Hospital Acquired Infections ◽  
Medical Wards ◽  
Hospital Acquired ◽  
Susceptibility Patterns

Background: Hospital acquired infections (HAIs) are one of the global concerns in resource limited settings. The aim of the study was to determine bacteria profile and their antimicrobial susceptibility patterns among patients admitted at surgical and medical wards. Methods: A hospital based cross-sectional study was conducted from November 2016 to July 2017 in MaddaWalabu Uni- versity Goba Referral Hospital. Urine and wound swabs were processed and standard disk diffusion test was done to assess susceptibility pattern. Association among variables was determined by Chi-square test. Results: Among 207 patients enrolled, 24.6% developed HAI, of which, 62.7% and 37.3% were from surgical and medical wards, respectively. The male to female ratio was 1.5:1. The age ranged from 19 to 74 years with a mean of 41.65(±16.48) years. A total 62 bacteria were isolated in which majority of the isolates were gram negative bacteria. Most isolates were re- sistance to most of the antibiotics tested but sensitive to Ceftriaxone, Norfloxacin and Ciprofloxacin. Conclusion: Due to the presence of high level drug resistant bacteria, empirical treatment to HAI may not be effective. Therefore, treatment should be based on the result of culture and sensitivity. Keywords: Antimicrobial susceptibility patterns; bacterial profile; hospital acquired infections.

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