scholarly journals BACTERIAL CONTAMINATIONS OF USED FACE MASKS COLLECTED FROM DIFFERENT CLINICAL SECTIONS IN A UNIVERSITY TEACHING HOSPITAL DURING COVID -19 PANDEMIC CRISES IN NIGERIA

2021 ◽  
Vol 4 (1) ◽  
pp. 8-10
Author(s):  
Obhioze Augustine Akpoka ◽  
A. A. Enaigbe ◽  
C. C. Irodi
Keyword(s):  
Teaching Hospital ◽  
Screening Test ◽  
Bacterial Load ◽  
Bacterial Count ◽  
University Teaching ◽  
Nutrient Agar ◽  
Total Bacterial Count ◽  
Frequency Of Occurrence ◽  
Bacterial Isolates ◽  
Bacteria And Fungi

This study was carried out to identify and characterize the bacteria and fungi present in used face masks, obtained from some clinical sections of University Teaching Hospital in Nigeria. The phenotypic; microbiological and biochemical identifications of the microorganisms were determined by the pour plate techniques using, nutrient agar according to established standard protocols. The results recorded a mean total bacterial count that ranged from 1.75 ± 0.12 log10 CFU/ml to 4.36 ± 0.28 log10 CFU/ml. However, the samples collected from the Anatomy section recorded the lowest bacterial count (1.75 ± 0.12 log10 CFU/ml) while samples obtained from the Nursing section had the highest bacterial load (4.36 ± 0.28 log10CFU/ml). The overall screening test showed the presence of three bacterial isolates: Peptococcus, Pseudomonas and Staphylococcus; Consequently, from the total 64 counted bacterial colonies, the frequency of occurrence was predominated by the Pseudomonas 40 (62.5 %) while, mild counts were respectively reported for Staphylococcus and Peptococcus 18 (28.1 %) and 06 (9.40 %).  Succinctly, this work has highlighted that, the underlying illnesses such as lung abscesses, asthma, otitis, pneumonia and sinusitis associated with the isolated organisms in this experiment are also directly linked or similar to the symptoms displayed in mild and severe cases of COVID-19 patients.

scholarly journals Antibiogram of Bacteria Isolated from Tympanotonus fuscatus Var. Radula (Prosobranchia:Potamididae) Sold in Markets in Nasarawa State, Nigeria

2020 ◽  
pp. 1-9
Author(s):  
U. K. Asemota ◽  
M. D. Makut ◽  
S. O. Obiekezie ◽  
J. E. Owuna ◽  
M. O. Adamu
Keyword(s):  
Escherichia Coli ◽  
Bacterial Load ◽  
Bacterial Count ◽  
Total Bacterial Count ◽  
Bacterial Isolates ◽  
Salmonella Spp ◽  
Pseudomonas Spp ◽  
Gram Positive Bacteria ◽  
Bacillus Spp ◽  
Gram Negative Organisms

The aim of this study was to determine the antibiogram of bacterial isolates from Tympanotonus fuscatus var. radula sold in markets in Nasarawa State. Nigeria. Samples of Tympanotonus fuscatus var. radula (periwinkles) were bought from soup ingredient sellers at different sale locations in Keffi, Masaka and Orange markets and were analyzed using standard bacteriological methods. The bacterial isolates were identified using morphological, cultural and biochemical techniques. The total bacteria count varied from 1.18–3.20 x 108 CFU/g for the raw samples while the total bacterial count for the boiled samples varied from 0–1.57 x 108 CFU/g. Periwinkle samples with shells from Masaka market had the highest bacterial load with a mean total bacterial count of 2.94 x 10⁸ CFU/g and mean total coliform count of 2.80 x 10⁶ CFU/g. Raw periwinkle samples with shells had a higher bacterial load than samples without shells. There was also a drastic reduction in the bacterial load in the periwinkle samples after boiling under laboratory conditions. The bacteria isolated were Bacillus spp. and Staphylococcus aureus were the Gram-positive bacteria isolated. Enterobacter spp., Escherichia coli, Salmonella spp., Pseudomonas spp., Serratia spp. and Proteus spp. The most frequently occurring gram positive bacteria was Escherichia coli with an isolation frequency of 6(24%), the least frequently occurring was Bacillus spp., 8(32)%. Antibiotic susceptibility test showed that all the gram negative organisms exhibited sensitivity to ciprofloxacin: Escherichia coli (32 mm), Enterobacter spp. (41.5 mm), Proteus spp. (40.0 mm), Salmonella spp. (37.0 mm), Serratia spp. (26.0 mm), Pseudomonas spp. (23.0 mm). All the gram negative organisms showed marked resistance to vancomycin: Escherichia coli (12.0 mm), Enterobacter spp. (10.0 mm), Proteus spp. (11.0 mm), Salmonella spp. (5.0 mm), Serratia spp. (10.0 mm) and Pseudomonas spp. (4.5 mm).

scholarly journals Prevalence and antibiotic susceptibility of Aeromonas hydrophila isolated from freshwater fishes

2016 ◽  
Vol 4 (3) ◽  
pp. 411 ◽  
Author(s):  
Halima Sarder ◽  
Tahsin Khan ◽  
Mihir Lal Saha ◽  
Nusrat Jahan Punom ◽  
Shankar Chandra Mandal ◽  
...  
Keyword(s):  
Aeromonas Hydrophila ◽  
Antibiotic Susceptibility ◽  
Reference Strain ◽  
Bacterial Count ◽  
Freshwater Fishes ◽  
Total Bacterial Count ◽  
Bacterial Isolates ◽  
Biochemical Tests ◽  
Anabas Testudineus ◽  
Significant Difference

Aeromonas hydrophila is an opportunistic microorganism. It is a secondary biological agent that contributes to the occurrence of fish diseases and its deterioration. This research was undertaken to determine the prevalence of A. hydrophila in some freshwater fishes collected from three different fish markets of Dhaka City and to test their antibiotic susceptibility. Total bacterial count and total aeromonas on different aeromonas selective media were enumerated using serial dilution technique. Bacterial isolates were characterized to identify A. hydrophila using biochemical tests and with comparison to reference strain (ATCC 7966). The lowest Aeromonas count was detected to be 2.83±0.40×102 cfu/g in Anabas testudineus and the highest was 1.03±0.153×103 cfu/g in Oreochromis mossambicus. On market basis highest aeromonas count was found in Anando Bazar (8.10±1.09×102 cfu/g) and lowest in Hatirpool Bazar (5.63±0.90×102 cfu/g) with no significant difference. Maximum susceptibility to amikacin and gentamicin was observed whereas all of the isolates were found resistant to a commonly used antibiotic amoxycillin. The obtained results point that antimicrobial susceptibility was more or less similar regardless of the origin of the samples collected. All the fishes investigated in this study contained A. hydrophila in their different organs.

scholarly journals Impact of a disinfecting technique on microbial contamination of computer keyboards and telephone handsets

2013 ◽  
Vol 2 (4) ◽  
pp. 1 ◽  
Author(s):  
Gabriele Messina ◽  
Emma Ceriale ◽  
Sandra Burgassi ◽  
Carmela Russo ◽  
Chiara Defranceschi ◽  
...  
Keyword(s):  
Microbial Contamination ◽  
Bacterial Count ◽  
Total Bacterial Count ◽  
Local Health ◽  
Signed Rank ◽  
Colony Forming Units ◽  
Before And After ◽  
Health Care Associated Infections ◽  
Elastic Compound ◽  
Bacteria And Fungi

Background: Computers and telephones are ubiquitous in the hospital and have been shown to be contaminated with potentially pathogenic microorganism. The aim of the study was to determine microbial contamination on computer keyboards and telephone handsets and the effectiveness of a disinfecting technique (DT). Methods: A matched cross-over study, involving an overall of 50 computer keyboards and 50 telephone handsets, was conducted in three hospitals, located in the Local Health Area of Siena (Italy) before and after the use of an innovative DT consisting of a malleable-elastic compound, containing ethanol, which adheres to surfaces, removes dirt and disinfects. Total bacterial count was evaluated and several types of bacteria and fungi were researched pre- and post- use of the DT. Non parametric tests: Wilcoxon signed rank and Mann Whitney, were used, when appropriate. Results: The DT was effective in disinfecting the objects. In fact, Colony-Forming Units (CFUs) decreased to zero in most comparisons. All the comparisons showed significant differences (p<0.001) after the DT, both for computer keyboards and telephone handsets. The only exception was found for molds in telephones (p=0.062). Keyboards emerged to be dirtier than telephones handsets (p<0.05) for several types of bacteria. Conclusions: The data suggest that microbial contamination of keyboards and telephones is considerable. These objects can be a vehicle for Health Care-Associated Infections HAIs and their disinfection should not be neglected. The DT showed to be appropriate for the disinfecting purpose.

Incidence of Microorganisms on Environmental Surfaces in Some Secondary Schools in Birnin Kebbi, Kebbi State, Nigeria

2019 ◽  
pp. 1-14
Author(s):  
Famubo, Joseph A. ◽  
Oladunjoye, Bunmi B. ◽  
Sofoluwe, Yetunde O.
Keyword(s):  
Secondary School ◽  
Secondary Schools ◽  
Representative Sample ◽  
School Setting ◽  
Bacterial Count ◽  
Total Bacterial Count ◽  
Microbiological Analysis ◽  
Mannitol Salt Agar ◽  
Environmental Surfaces ◽  
Bacteria And Fungi

Due to the ubiquitous nature of bacteria and fungi, the microbiological analysis of environmental surfaces (chairs, tables, floors, hand rails, toilet door knobs and class door knobs) of five (5) secondary schools in Birnin Kebbi metropolis was carried out. Surface swabbing method was used for the collection of a representative sample on the surfaces. Media such as Nutrient agar, Eosin methylene blue, Sabouraud dextrose agar, and Mannitol salt agar were used for the isolation of the organisms. The total bacterial count ranged from 1.1×102 to 9.9×103 CFU/ml, while the total fungi count ranged from 0.0 to 3.6 ×103 CFU/ml. The bacteria isolated include: Corynebacterium kutsceri, Lactobacillus casei, Bacillus sphaerious, Staphlococcus aureus, Bacillus subtilis, Aeromonas spp, staphylococcus epidermidis, Pseudomonas spp, Micococcus varians, while the fungi isolated include Rhizopus stolonifer, Saccharyomyces cerevisae, Alternaria alternate, Aspergillus niger, Mucor spp., Fusarium spp. The isolation of these organisms followed series of procedures, starting with samples collected with swab sticks emulsified with peptone water, followed by the sterile dilution of each sample to a factor of 10-1 for chairs, tables, hand rail and door knobs while floor was diluted to a factor of 10-2. One millilitre (1ml) aliquots of which was used as a representative sample used for isolation of pure colonies was followed by series of biochemical test to confirm the identification of each isolate. Despite the routine cleaning practiced in secondary school setting, isolation of microorganisms from secondary school setting is inevitable.

scholarly journals Effect of use varying ratios from fat with minced meat on bacterial load

2010 ◽  
Vol 34 (2) ◽  
pp. 142-147
Author(s):  
Fouad Kamil Salum
Keyword(s):  
Bacterial Load ◽  
Bacterial Count ◽  
Total Bacterial Count ◽  
The Third ◽  
Significant Difference ◽  
The Mean ◽  
Minced Meat

This study designed to know the effect of use different ration from mixing between minced meat With fat on total bacterial count of meat ( 80) sample was examine through the period of this study (40 sample for minced meat and 40 sample for minced fat) collected from shops in Baghdad city. The results showed the means of bacterial count was rise for the group contained just minced meat without any mixing in means reach to 9.6x 10 cfu \ml follow it with second group which include only minced fat by count 5.5x10 cfu\ml, and the study showed also decrease in bacterial count for (3) mixing groups ( fat with meat ), so the bacteria count for the third group which included 5%, from fat 1.1x10 cfu\ml and 1.3x10 for each of fourth and fifth group which contain the percent of fat10%,20%0n respectively. Also the study shows presence of a significant difference in ( p<0.05) between different mixing group (meat with fat) from one side to two qroups which included meat and fat only. Also recorded significant difference and in the same level in the mean of bacterial count between the first group which contain minced meat only, and the second one which contain fat only, there is no significant difference in mean of bacterial count among varying mixing group from statistical side but record obvious and important decline hygienically in bacterial count for each group. The study showed the best mixing percent for fat with minced meat were 10%,20% respectively which recorded the less bacterial count in each of these two groups. Conclusion mix fat with meat in ratios (10% - 20%) to get the beast decreas in bacterial load of meat .

scholarly journals Bacteriological Quality Analysis of Water in Storage Tanks in A University Community, South Southern - Nigeria

2021 ◽  
Vol 6 (3) ◽  
pp. 16-23
Author(s):  
Ofonime M. Ogba ◽  
Oluwayemisi A. Olorode ◽  
Mary P. Okon ◽  
Nse O. Umoh
Keyword(s):  
Escherichia Coli ◽  
Water Samples ◽  
Bacterial Load ◽  
Bacterial Count ◽  
Total Coliform ◽  
Nutrient Agar ◽  
Quality Analysis ◽  
Storage Tanks ◽  
Filtration Method ◽  
Coliform Count

The use of unsafe water supplies and microbial contaminated water may pose serious health challenge to users. The aim of the study was to determine the level of bacterial contamination of the various water sources and the suitability for human use and consumption in University of Calabar Community, Nigeria. A total of 30 water samples were obtained from the University storage tanks and analysed for the presence of bacteria. The level of feacal coliform count, total coliform count and heterotrophic bacterial count was analysed using membrane filtration method and standard culture method on a differential and selective media. The samples were cultured on MacConkey and Nutrient agar. The isolates obtained from the above media were subcultured into slants of nutrient agar. Isolates were subjected to Gram staining and biochemical tests. The feacal coliform, Escherichia coli was isolated from all the water samples. Total coliform counts ranged from 1cfu/ml - 92cfu/ml while total heterotrophic bacterial count ranged from 1cfu/ml to 161cfu/ml. The bacteria species isolated were Escherichia coli, Klebsiella pneumoniae, Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus species, Enterobacter aerogenes, Coagulase negative Staphylococcus, Proteus species, Lactobacillus species and Listeria species. The results obtained from this study have shown high level of bacterial load which makes the water unsuitable for human consumption. Further treatment may be needed as the bacteria isolates from the water samples point to feacal contamination which may be due to inadequate treatment of water, contamination while in the storage tanks or passage through contaminated pipes supplying the community. The consumers may be at high risks of enteric bacterial infections.

scholarly journals The antimicrobial role of emulsifying salts against E.coli O157:H7 contaminated local markets soft cheese of Baquba city

2017 ◽  
Vol 41 (1) ◽  
pp. 5-10
Author(s):  
Ahmed M.S. Al-Shedidi
Keyword(s):  
Escherichia Coli ◽  
Sodium Tripolyphosphate ◽  
Bacterial Load ◽  
Winter Season ◽  
Trisodium Citrate ◽  
Bacterial Count ◽  
Total Bacterial Count ◽  
E Coli ◽  
Soft Cheese ◽  
Emulsifying Salts

    The aim  of this   study  was to investigate the degree of contamination of  locally produced soft cheese samples by Escherichia coli O157:H7 and to determine the ideal emulsifying salts  and their  appropriate ratios for emulsification of soft cheese and their impacts on microbial load of that influence public health. Samples collected randomly from five popular parties markets affiliated to the city of Baquba 60 samples of the local soft cheese produced by farmers at a rate of 30 samples for each of the summer season, from the beginning of July to the end of August, while the other thirty sample of winter season were collected from the beginning of December to the end of January to study their bacterial load of coli form and Escherichia coli especially E. coli O157:H7. The result showed total bacterial count characterized by high significance (P<0.01) in the local cheese samples of summer and winter season also. The results proved the bactericidal and bacteriostatic effect of emulsifying salts on microbial activity was confirmed when the total bacterial count was significantly (P<0.01) reduced in soft cheese with (2.5%) of emulsifying salts added. Were no growth of E. coli and E. coli O157:H7 after adding (2%) of emulsifying salts to nutrient broth and the results confirmed that the best mixing of the components of emulsifying salts that is made up of (90% Sodium tripolyphosphate + 10% Trisodium citrate).

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