scholarly journals Aeromonas detection and their toxins from drinking water from reservoirs and drinking fountains

2007 ◽  
Vol 6 (1) ◽  
pp. 117-123 ◽  
Author(s):  
Maria Tereza Pepe Razzolini ◽  
Marisa Di Bari ◽  
Petra Sanchez Sanchez ◽  
Maria Inês Zanoli Sato

Aeromonads are inhabitants of aquatic ecosystems and are described as being involved in intestinal disturbances and other infections. A total of 200 drinking water samples from domestic and public reservoirs and drinking fountains located in São Paulo (Brazil), were analyzed for the presence of Aeromonas. Samples were concentrated by membrane filtration and enriched in APW. ADA medium was used for Aeromonas isolation and colonies were confirmed by biochemical characterization. Strains isolated were tested for hemolysin and toxin production. Aeromonas was detected in 12 samples (6.0%). Aeromonas strains (96) were isolated and identified as: A. caviae (41.7%), A.hydrophila (15.7%), A.allosacharophila (10.4%), A. schubertii (1.0%) and Aeromonas spp. (31.2%).The results revealed that 70% of A. caviae, 66.7% of A. hydrophila, 80% of A. allosacharophila and 46.6% of Aeromonas spp. were hemolytic. The assay for checking production of toxins showed that 17.5% of A. caviae, 73.3% of A. hydrophila, 60% of A. allosacharophila, 100% of A. schubertii, and 33.3% of Aeromonas spp. were able to produce toxins. The results demonstrated the pathogenic potential of Aeromonas, indicating that the presence of this emerging pathogen in water systems is a public health concern.

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Ansuman Panigrahi ◽  
Sai Chandan Das

Undernutrition among children is a major public health concern worldwide, more prevalent in Asia and Africa. It manifests itself in various forms such as wasting or stunting or underweight and retards physical and mental development, increases susceptibility to infection, and reduces educational attainment and productivity. The present study was undertaken to assess the level of wasting, stunting, and underweight and determine its associates among slum children of 3–9 years of age, residing in Bhubaneswar city, India. After obtaining informed consent, a total of 249 children from 249 households were studied and their parents/guardians were interviewed to collect all relevant information. 23.3%, 57.4%, and 45.4% of children were found to have wasting, stunting, and underweight, respectively. Variables like birth order of child, period of initiation of breastfeeding and mother’s education were found to be strong predictors of wasting, whereas toilet facility in household and practice of drinking water storage were significantly associated with stunting among slum children as revealed in multiple regression analysis. Thus, a multipronged approach is needed such as giving priority to improve education for slum community especially for women, creating awareness regarding benefits of early initiation of breastfeeding, small family size, and proper storage of drinking water, and providing toilet facility in slum households which could improve the nutritional status of slum children.


2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Fatlume Berisha ◽  
Walter Goessler

In the recent years, not much environmental monitoring has been conducted in the territory of Kosovo. This study represents the first comprehensive monitoring of the drinking water situation throughout most of the territory of Kosovo. We present the distribution of major and minor trace elements in drinking water samples from Kosovo. During our study we collected 951 samples from four different sources: private-bored wells; naturally flowing artesian water; pumped-drilled wells; and public water sources (tap water). The randomly selected drinking water samples were investigated by routine water analyses using inductively coupled plasma mass spectrometry (ICPMS) for 32 elements (Li, Be, B, Na, Mg, Al, K, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Rb, Sr, Mo, Ag, Cd, Sn, Sb, Te, Ba, Tl, Pb, Bi, Th, U). Even though there are set guidelines for elemental exposure in drinking water worldwide, in developing countries, such as Kosovo, the lack of monitoring drinking water continues to be an important health concern. This study reports the concentrations of major and minor elements in the drinking water in Kosovo. Additionally, we show the variation of the metal concentration within different sources. Of the 15 regulated elements, the following five elements: Mn, Fe, Al, Ni, As, and U were the elements which most often exceeded the guidelines set by the EU and/or WHO.


2011 ◽  
Vol 6 (03) ◽  
pp. 251-255 ◽  
Author(s):  
Adnan Khan ◽  
Amber Farooqui ◽  
Shahana Urooj Kazmi

Background: Prevalence of Helicobacter pylori (H. pylori) infection is an increasing problem in developing countries. Several environmental factors such as overcrowding, poverty, contaminated drinking water and food are considered to contribute toward transmission of infection; however, little is known about their definitive roles. The aim of this study is to investigate the presence of H. pylori in drinking water samples of Karachi, Pakistan. Methodology: Samples of drinking water were collected from 18 different towns located in the metropolitan area of Karachi. Samples were concentrated by membrane filtration method and subjected to PCR for the detection of H. pylori. Results: Two out of 50 (4%) samples collected from two different densely populated town areas were found to be positive for H. pylori. Conclusion: The study provides evidence for the presence of H. pylori in municipal drinking water of Karachi.


2013 ◽  
Vol 11 (4) ◽  
pp. 772-782 ◽  
Author(s):  
Anita Kern ◽  
Mihaly Kadar ◽  
Katalin Szomor ◽  
György Berencsi ◽  
Beatrix Kapusinszky ◽  
...  

Waterborne viruses infect the human population through the consumption of contaminated drinking water and by direct contact with polluted surface water during recreational activity. Although water related viral outbreaks are a major public health concern, virus detection is not a part of the water quality monitoring scheme, mainly due to the absence of routine analysis methods. In the present study, we implemented various approaches for water concentration and virus detection, and tested on Hungarian surface water samples. Eighty samples were collected from 16 sites in Hungary. Samples were concentrated by glass wool and membrane filtration. Human adenoviruses were detected by conventional and quantitative real-time polymerase chain reaction (PCR) methods in 56% (45/80) of the samples; viral titers ranged from 8.60 × 101 to 3.91 × 104 genome copies per liter. Noroviruses and enteroviruses were detected in 30% (24/80) and 13% (10/80) of samples, respectively, by reverse transcription-PCR assays. Results indicate a high prevalence of viral human pathogens in surface waters, suggesting the necessity of a detailed survey focusing on the quality of natural bathing waters and drinking water sources.


2020 ◽  
Vol 15 (1) ◽  
pp. 1
Author(s):  
Dicky Andiarsa ◽  
Syarif Hidayat ◽  
Ika Setianingsih

ABSTRACTDiarrhea has been long a public health concern in the world especially to infants and children. Diarrhea can be caused by many factors including sanitation, clean and healthy behavior, and access to clean water, consumption of drinking water and food, and so on. The results of the research in Tanah Bumbu Regency stated that some of the main causes related to the incidence of diarrhea in Tanah Bumbu Regency included Sanitation, Healthy and clean behavior, clean water access, and drinking water access. Secondary data analysis held to define the scheme of drinking water consumption in families with diarrhea patients in Tanah Bumbu Regency. The result showed that the most families with diarrhea consumed refill drinking water (67.06%) with most of them did not do any pre-treatment to the water (81.55%). The water consuming pattern has been changed to community of Tanah Bumbu Regency by consuming refilling water. Processing (boiling) refilling water before drinking can reduce the risk of diarrhea.Keywords: refilling drinking water, diarrhea, drinking water consumption patterns


2007 ◽  
Vol 99 (12) ◽  
pp. 906-907 ◽  
Author(s):  
J. H. Lubin ◽  
L. E. Beane Freeman ◽  
K. P. Cantor

2010 ◽  
Vol 73 (11) ◽  
pp. 2099-2102 ◽  
Author(s):  
NURHAN ERTAS ◽  
YUSUF DOGRUER ◽  
ZAFER GONULALAN ◽  
AHMET GUNER ◽  
ISMAIL ULGER

The aim of this study was to investigate the incidence of Arcobacter species in water sources and raw milk from healthy animals in Kayseri, Turkey. A total of 175 samples of drinking water (n = 100), spring water (n = 25), and raw milk (n = 50) were examined. Arcobacter species were isolated using the membrane filtration technique. Overall, 7 (4%) of the 175 samples yielded Arcobacter spp.: 3 (3%) drinking water samples, 1 (4%) spring water sample, and 3 (6%) raw milk samples. Two species of Arcobacter were recovered from the seven positive samples: Arcobacter butzleri, Arcobacter skirrowii, and A. butzleri plus A. skirrowii found in 3 (1.7%), 2 (1.1%), and 2 (1.1%) samples, respectively. Our study is the first to report the isolation of both A. butzleri and A. skirrowii together from drinking water and is the first report of Arcobacter in milk from healthy cows in Turkey. Based on these findings, the presence of Arcobacter species in environmental waters and raw milk may pose a potential hazard for human health.


2020 ◽  
Vol 2 (12) ◽  
Author(s):  
Geoffrey Foster ◽  
Manal AbuOun ◽  
Romain Pizzi ◽  
Bryn Tennant ◽  
Margaret McCall ◽  
...  

The ST307 multidrug-resistant CTX-M-15-producing Klebsiella pneumoniae is an emerging pathogen, which has become disseminated worldwide in humans but is rarely reported from other reservoirs. We report the first isolation of K. pneumoniae from an animal in Europe and also from a reptile, a captive tortoise, whose death it probably caused. Detection of this clone from an animal adds to evidence of niche expansion in non-human environments, where it may amplify, recycle and become of greater public health concern.


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