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bacteriological water analysis

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https://www.readbyqxmd.com/read/29619770/impact-of-city-effluents-on-water-quality-of-indus-river-assessment-of-temporal-and-spatial-variations-in-the-southern-region-of-khyber-pakhtunkhwa-pakistan
#1
Ilham Khan, Azim Khan, Muhammad Sohail Khan, Shabnam Zafar, Asma Hameed, Shakeel Badshah, Shafiq Ur Rehman, Hidayat Ullah, Ghazala Yasmeen
The impact of city effluents on water quality of Indus River was assessed in the southern region of Khyber Pakhtunkhwa, Pakistan. Water samples were collected in dry (DS) and wet (WS) seasons from seven sampling zones along Indus River and the physical, bacteriological, and chemical parameters determining water quality were quantified. There were marked temporal and spatial variations in the water quality of Indus River. The magnitude of pollution was high in WS compared with DS. The quality of water varied across the sampling zones, and it greatly depended upon the nature of effluents entering the river...
April 4, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29564721/evaluation-of-bacterial-contamination-as-an-indicator-of-viral-contamination-in-a-sedimentary-aquifer-in-uruguay
#2
P Gamazo, M Victoria, J F Schijven, E Alvareda, L F L Tort, J Ramos, L Burutaran, M Olivera, A Lizasoain, G Sapriza, M Castells, R Colina
In Uruguay, groundwater is frequently used for agricultural activities, as well as for human consumption in urban and rural areas. As in many countries worldwide, drinking water microbiological quality is evaluated only according to bacteriological standards and virological analyses are not mentioned in the legislation. In this work, the incidence of human viral (Rotavirus A, Norovirus GII, and human Adenovirus) and bacterial (total and thermotolerant coliform and Pseudomonas aeruginosa) contamination in groundwater in the Salto district, Uruguay, as well as the possible correlation between these groups of microorganisms, was studied...
March 21, 2018: Food and Environmental Virology
https://www.readbyqxmd.com/read/29498738/blastocystis-hominis-transmission-by-non-potable-water-a-case-report-in-italy
#3
Maria Cristina Angelici, Chiara Nardis, Riccardo Scarpelli, Paola Ade
In the reported case, a 41-year-old Italian man came to the clinician's observation reporting cramps, bloating and watery diarrhoea a few days after drinking water indicated as unpotable from a fountain in a farm area. The medical suspicion was directed at both gluten intolerance and enteric infection, eventually of waterborne origin. Gluten intolerance was investigated by intestinal biopsy and excluded, while stool analyses ruled out infective bacteriological or viral agents and parasites. Subsequently, a persistent eosinophilia was revealed and a parasitological analysis was again suggested, planning for a more sensitive molecular method...
March 2, 2018: New Microbiologica
https://www.readbyqxmd.com/read/29396027/high-levels-of-faecal-contamination-in-drinking-groundwater-and-recreational-water-due-to-poor-sanitation-in-the-sub-rural-neighbourhoods-of-kinshasa-democratic-republic-of-the-congo
#4
John M Kayembe, Florian Thevenon, Amandine Laffite, Periyasamy Sivalingam, Patience Ngelinkoto, Crispin K Mulaji, Jean-Paul Otamonga, Josué I Mubedi, John Poté
In many urban and peri-urban areas of developing countries, shallow wells and untreated water from urban rivers are used for domestic purposes, including drinking water supply, population bathing and irrigation for urban agriculture. The evaluation and monitoring of water quality are therefore necessary for preventing potential human risk associated with the exposure to contaminated water. In this study, physicochemical and bacteriological parameters were assessed in an urban river (named Kokolo Canal/Jerusalem River) draining the municipality of Lingwala (City of Kinshasa, Democratic Republic of the Congo) and in two shallow wells used as drinking water supplies, during the wet and dry seasons in order to estimate the seasonal variation of contamination...
January 10, 2018: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/29316016/noninvasive-measurement-of-reepithelialization-and-microvascularity-of-suction-blister-wounds-with-benchmarking-to-histology
#5
Heidi F Larsen, Malin G Ahlström, Lise M R Gjerdrum, Mette Mogensen, Khaled Ghathian, Henrik Calum, Anne L Sørensen, Julie L Forman, Mark Vandeven, Marian N Holerca, Laurence Du-Thumm, Lars N Jorgensen, Magnus S Ågren
We explored use of the suction-blister wound model in the assessment of not only epidermal regeneration but also pain, the microvascular response and bacteriology. The effects of topical zinc sulfate were studied to articulate the methodologies in this double-blind trial. One epidermal suction blister (10 mm) was induced on each buttock in 30 healthy volunteers (15 females:15 males) and deroofed on day 0. The wounds were randomized to daily treatment with 1.4% zinc sulfate shower gel (n = 20), placebo (n = 20) or control (n = 20)...
November 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29217934/the-prevalence-of-antibiotic-resistant-diarrhogenic-bacterial-species-in-surface-waters-south-eastern-nigeria
#6
Stanley C Onuoha
Background: This study assessed the bacteriological qualities of surface waters in Afikpo, between April and September 2016. Methods: Surface water samples were collected from three streams for bacteriological analysis. Bacteria species were isolated using standard microbiological and biochemical techniques. Antibiotic susceptibility study was carried out using Kirby Bauer disc diffusion method. Results: The result of the mean heterotrophic bacteria count from the streams showed that Okpu stream had 209...
July 2017: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/29072220/microbial-assessment-of-dental-unit-waterlines-in-an-institutional-setup-in-karnataka-south-india
#7
Shobha Rodrigues, Shivani Suvarna, Jyoti Suvarna, Vishwas Saralaya, Sharon Saldanha, Vidya K Shenoy
BACKGROUND AND AIM: Biofilms in dental unit waterlines (DUWLs), suction hoses, and fittings are a potentially significant source of cross-contamination posing significant health risk as these may come into contact with patients during treatment. The purpose of this in vitro study was to identify the spectrum of bacterial flora colonizing the DUWLs and to detect pathogenic microorganisms present in such an environmental niche. MATERIALS AND METHODS: Thirty DUWL samples were collected from in use dental units selected randomly from various clinical departments...
September 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29051705/open-defaecation-and-its-effects-on-the-bacteriological-quality-of-drinking-water-sources-in-isiolo-county-kenya
#8
Joab Odhiambo Okullo, Wilkister Nyaora Moturi, George Morara Ogendi
BACKGROUND INFORMATION: The post-2015 Sustainable Development Goals for sanitation call for universal access to adequate and equitable sanitation and an end to open defaecation by 2030. In Isiolo County, a semi-arid region lying in the northern part of Kenya, poor sanitation and water shortage remain a major problem facing the rural communities. OBJECTIVE: The overall aim of the study was to assess the relationship between sanitation practices and the bacteriological quality of drinking water sources...
2017: Environmental Health Insights
https://www.readbyqxmd.com/read/29040078/genetic-diversity-of-escherichia-coli-isolates-from-surface-water-and-groundwater-in-a-rural-environment
#9
Maria Laura Gambero, Monica Blarasin, Susana Bettera, Jesica Giuliano Albo
The genetic characteristics among Escherichia coli strains can be grouped by origin of isolation. Then, it is possible to use the genotypes as a tool to determine the source of water contamination. The aim of this study was to define water aptitude for human consumption in a rural basin and to assess the diversity of E. coli water populations. Thus, it was possible to identify the main sources of fecal contamination and to explore linkages with the hydrogeological environment and land uses. The bacteriological analysis showed that more than 50% of samples were unfit for human consumption...
October 2017: Journal of Water and Health
https://www.readbyqxmd.com/read/28990819/evaluating-the-u-s-food-safety-modernization-act-produce-safety-rule-standard-for-microbial-quality-of-agricultural-water-for-growing-produce
#10
Arie H Havelaar, Kathleen M Vazquez, Zeynal Topalcengiz, Rafael Muñoz-Carpena, Michelle D Danyluk
The U.S. Food and Drug Administration (FDA) has defined standards for the microbial quality of agricultural surface water used for irrigation. According to the FDA produce safety rule (PSR), a microbial water quality profile requires analysis of a minimum of 20 samples for Escherichia coli over 2 to 4 years. The geometric mean (GM) level of E. coli should not exceed 126 CFU/100 mL, and the statistical threshold value (STV) should not exceed 410 CFU/100 mL. The water quality profile should be updated by analysis of a minimum of five samples per year...
October 9, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28660382/epidemiology-behavior-of-leptospirosis-in-ci%C3%A3-naga-de-oro-c%C3%A3-rdoba-colombia
#11
C Ensuncho-Hoyos, V Rodríguez-Rodríguez, A Pérez-Doria, O Vergara, A Calderón-Rangel
The purpose of this study was to determine the epidemiology of leptospirosis in rural areas of Ciénaga de Oro, Córdoba, Colombia, a convenience sampling was carried out on 13 farms. The sample size was 325 reproductive age cows, 11 canine samples, and 20 humans. The samples were subjected to MAT analysis with 11 serogroups of Leptospira interrogans sensu lato. Once the MAT results were received, urine samples were collected from 78 cows, along with 39 water samples, for bacteriological cultures and PCR for the 16S rRNA gene in L...
October 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28641671/occurrence-of-aerobic-and-anaerobic-bacteria-in-the-consumer-end-of-a-water-distribution-system
#12
Süleyman Hoca, Miray Üstüntürk-Onan, Esra Ilhan-Sungur
  In this study, mixed species biofilm formation including sulphate-reducing bacteria (SRB) on polypropylene surface and bacteriology of network water were investigated in a model water distribution system during a nine-month period. Water and biofilm samples were analyzed for the enumeration of aerobic heterotrophic bacteria (AHB), anaerobic heterotrophic bacteria (ANHB) and SRB. The number of live/dead bacteria was also analyzed by epifluorescence microscopy. In addition, extracellular polysaccharide substances (EPS) extraction, carbohydrate analysis and scanning electron microscope observation were performed...
July 1, 2017: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28616247/planarian-regeneration-in-space-persistent-anatomical-behavioral-and-bacteriological-changes-induced-by-space-travel
#13
Junji Morokuma, Fallon Durant, Katherine B Williams, Joshua M Finkelstein, Douglas J Blackiston, Twyman Clements, David W Reed, Michael Roberts, Mahendra Jain, Kris Kimel, Sunia A Trauger, Benjamin E Wolfe, Michael Levin
Regeneration is regulated not only by chemical signals but also by physical processes, such as bioelectric gradients. How these may change in the absence of the normal gravitational and geomagnetic fields is largely unknown. Planarian flatworms were moved to the International Space Station for 5 weeks, immediately after removing their heads and tails. A control group in spring water remained on Earth. No manipulation of the planaria occurred while they were in orbit, and space-exposed worms were returned to our laboratory for analysis...
April 2017: Regeneration
https://www.readbyqxmd.com/read/28558276/next-generation-sequencing-identification-of-pathogenic-bacterial-genes-and-their-relationship-with-fecal-indicator-bacteria-in-different-water-sources-in-the-kathmandu-valley-nepal
#14
Rajani Ghaju Shrestha, Yasuhiro Tanaka, Bikash Malla, Dinesh Bhandari, Sarmila Tandukar, Daisuke Inoue, Kazunari Sei, Jeevan B Sherchand, Eiji Haramoto
Bacteriological analysis of drinking water leads to detection of only conventional fecal indicator bacteria. This study aimed to explore and characterize bacterial diversity, to understand the extent of pathogenic bacterial contamination, and to examine the relationship between pathogenic bacteria and fecal indicator bacteria in different water sources in the Kathmandu Valley, Nepal. Sixteen water samples were collected from shallow dug wells (n=12), a deep tube well (n=1), a spring (n=1), and rivers (n=2) in September 2014 for 16S rRNA gene next-generation sequencing...
December 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28428133/epidemiological-study-of-common-diseases-and-their-risk-factors-in-camels-in-south-punjab-pakistan
#15
Aneela Zameer Durrani, Zubair Bashir, Imran Rasheed, Noor-Ul-Ain Sarwar
Bacteriological study of mastitis along with common blood protozoan diseases were studied in dromedary camels in Cholistan, Dera Ismail Khan and Rahim Yar Khan districts in South Punjab, Pakistan. For this purpose 300 camels were sampled randomly at different common grazing and watering point. For study of blood parasites clinically suspected and apparently healthy camels, 150 each, were sampled. An overall prevalence of 15%and 5% was recorded for trypanosomiasis and Anaplasmosis respectively. Trypanosoma evansi was identified with 280 bp product on polymerase chain reaction test...
July 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28237228/spatial-temporal-cluster-analysis-of-fatal-clostridium-chauvoei-cases-among-cattle-in-styria-austria-between-1986-and-2013
#16
Robert Wolf, Jörg Hiesel, Sabrina Kuchling, Armin Deutz, John Kastelic, Herman W Barkema, Peter Wagner
Clostridium chauvoei is a gram positive, spore building bacterium that causes blackleg, a mostly fatal disease in cattle and other ruminants. Although the disease is common, little is known on the epidemiology of blackleg. As infection occurs through the environment, the risk of blackleg might be increased in areas with a specific climate or soil type. Therefore, the objective of the present study was to identify spatial and temporal clusters in the incidence of blackleg in the province of Styria, Austria. Data were collected within the governmentally delivered blackleg control program which includes vaccination of cattle with access to known blackleg pastures and compensation for fallen stock...
March 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28040159/relative-effectiveness-of-selected-preenrichment-media-for-the-detection-of-salmonella-from-leafy-green-produce-and-herbs
#17
Andrew P Jacobson, Hua Wang, Vikas S Gill, Robert Duvall, Gabriela Arce, Stuart Chirtel, Thomas S Hammack
Four buffered preenrichment media (BAX® System MP Media (BAX)), Universal Preenrichment Broth (UPB), modified Buffered Peptone Water (mBPW), and Buffered Peptone Water (BPW)) were compared with lactose broth (LB) in the Bacteriological Analytical Manual's (BAM) Salmonella culture method for the analysis of 9 leafy green produce and herb types. Artificially contaminated test portions were pre-enriched in each medium and the results were analyzed statistically using Fisher's Exact 2-tailed F test (p < 0...
May 2017: Food Microbiology
https://www.readbyqxmd.com/read/27959884/microbial-source-tracking-of-private-well-water-samples-across-at-risk-regions-in-southern-ontario-and-analysis-of-traditional-fecal-indicator-bacteria-assays-including-culture-and-qpcr
#18
Julia Krolik, Allison Maier, Shawna Thompson, Anna Majury
Many people living in rural areas rely on privately owned wells as their primary source of drinking water. These water sources are at risk for fecal contamination of human, wildlife, and livestock origin. While traditional bacteriological testing involves culture-based methods, microbial source tracking (MST) assays present an opportunity to additionally determine the source of fecal contamination. This study investigated the main host sources of contamination in private well water samples with high levels of Escherichia coli (E...
December 2016: Journal of Water and Health
https://www.readbyqxmd.com/read/27939163/evidence-of-brucella-strain-st27-in-bottlenose-dolphin-tursiops-truncatus-in-europe
#19
Željko Cvetnić, Sanja Duvnjak, Martina Đuras, Tomislav Gomerčić, Irena Reil, Maja Zdelar-Tuk, Silvio Špičić
Marine mammal brucellosis has been known for more than 20 years, but recent work suggests it is more widespread than originally thought. Brucella (B.) pinnipedialis has been isolated from pinnipeds, while B. ceti strains have been associated with cetaceans. Here we report a Brucella strain isolated from multiple lymph nodes of one bottlenose dolphin (Tursiops truncatus) during routine examination of dolphin carcasses found in the Croatian part of the northern Adriatic Sea during the summer of 2015. Classical bacteriological biotyping, PCR-based techniques (single, multiplex, PCR-RFLP) and 16S rRNA DNA sequencing were used to identify Brucella spp...
November 30, 2016: Veterinary Microbiology
https://www.readbyqxmd.com/read/27389829/the-impact-of-hospital-and-urban-wastewaters-on-the-bacteriological-contamination-of-the-water-resources-in-kinshasa-democratic-republic-of-congo
#20
Pitchouna I Kilunga, John M Kayembe, Amandine Laffite, Florian Thevenon, Naresh Devarajan, Crispin K Mulaji, Josué I Mubedi, Zéphirin G Yav, Jean-Paul Otamonga, Pius T Mpiana, John Poté
Although the United Nations General Assembly recognized in 2010 the right to safe and clean drinking water and sanitation as a human right that is essential to the full enjoyment of life and all other human rights, the contamination of water supplies with faecal pathogens is still a major and unsolved problem in many parts of the world. In this study, faecal indicator bacteria (FIB), including Escherichia coli (E. coli) and Enterococcus (ENT), were quantified over the period of June/July 2014 and June/July 2015 to assess the quality of hospital effluents (n = 3: H1, H2 and H3) and of rivers receiving wastewaters from the city of Kinshasa, Democratic Republic of Congo...
October 14, 2016: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
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