scholarly journals Prevalence of diarrhoeagenic Escherichia coli in children from León, Nicaragua

2009 ◽  
Vol 58 (5) ◽  
pp. 630-637 ◽  
Author(s):  
Samuel Vilchez ◽  
Daniel Reyes ◽  
Margarita Paniagua ◽  
Filemon Bucardo ◽  
Roland Möllby ◽  
...  
Keyword(s):  
Public Health ◽  
Escherichia Coli ◽  
Developing Countries ◽  
Infant Mortality ◽  
Health Problem ◽  
Public Health Problem ◽  
Diarrhoeal Disease ◽  
Severe Diarrhoea ◽  
E Coli ◽  
Faecal Samples

Diarrhoeal disease is a public health problem worldwide, mostly affecting children in developing countries. In Nicaragua, diarrhoea is the second greatest cause of infant mortality. During the period March 2005 to September 2006, a total of 526 faecal samples from children aged 0–60 months (381 with and 145 without diarrhoea) from León, Nicaragua, were studied. In order to detect five different diarrhoeagenic Escherichia coli pathotypes simultaneously [enterotoxigenic E. coli (ETEC), enteroaggregative E. coli (EAEC), enteropathogenic E. coli (EPEC), enterohaemorrhagic E. coli (EHEC) and enteroinvasive E. coli (EIEC)], a mixture of eight primer pairs was used in a single PCR. At least one diarrhoeagenic E. coli pathotype was detected in 205 samples (53.8 %) of the diarrhoea group and in 77 samples (53.1 %) in the non-diarrhoea group. ETEC was detected significantly more often in children with diarrhoea (20.5 %) than in children without diarrhoea (8.3 %) (P=0.001). Atypical EPEC, EIEC and EAEC were detected with slightly lower frequencies in children with (16.0, 0.8 and 27.8 %, respectively) than in children without (20.7, 1.4 and 33.1 %, respectively) diarrhoea. EHEC was only detected in children with diarrhoea (2.1 %). In conclusion, ETEC continues to be an important agent associated with diarrhoea in children from León, Nicaragua. Although not very frequent, the only findings that were 100 % associated with diarrhoea were ETEC estA (4.7 %) and EHEC (2.1 %). Nevertheless, EAEC and EPEC were also frequent pathotypes in the population under study. In children with severe diarrhoea, more than half had EAEC, ETEC or EPEC, and EAEC was the most prevalent pathotype.

scholarly journals Prevalence of Ascaris lumbricoides in contaminated faecal samples of children residing in urban areas of Lahore, Pakistan

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Shahida Azhar Ali ◽  
Sadaf Niaz ◽  
Liliana Aguilar-Marcelino ◽  
Wajid Ali ◽  
Majid Ali ◽  
...  
Keyword(s):  
Public Health ◽  
Developing Countries ◽  
School Children ◽  
Ascaris Lumbricoides ◽  
Health Problem ◽  
Urban Areas ◽  
Public Health Problem ◽  
Primary School Children ◽  
Urban Study ◽  
Faecal Samples

AbstractAscariasis is a common public health problem of preschool and primary school children in developing countries like Pakistan. The aim of the present study was to determine the prevalence and pattern of Ascaris lumbericoides (A. lumbricoides) infection among children residing in urban areas of Lahore, to provide information on ascariasis to promote awareness and prevention programs between the participants specially on the months or season of higher prevalence. To investigate the prevalence of Ascaris Lumbricoides in the contaminated faecal samples of children residing in urban areas of Lahore, a study was conducted from November 2010 to October 2012 and we collected 3600 stratified faecal samples from six urban study areas. Overall 32/3600 (0.88%) prevalence of fecal samples was found positive for eggs of Ascaris lumbricoides. Area wise highest presence positivity 1.67% was observed in Allama Iqbal Town followed by 1.17% in Samanabad, 1.00% in Wapda Town, 1.00% in Gulberg, 0.50% in Cantt, and the lowest 0.00% in Valencia Town respectively (p < 0.001) The highest month wise positivity prevalence 3/300 (3.33%) (p < 0.001) was observed in the month of September that gradually declined up to 0/300 (0.00%) in the month of March. The results reveal that urban areas of Lahore are susceptible to Ascaris Lubricoides infection and the highest prevalence were observed autumn on the month of September.

Detection of Antibiotic Resistance in Escherichia coli Strains: Can Fish Commonly Used in Raw Preparations such as Sushi and Sashimi Constitute a Public Health Problem?

2019 ◽  
Vol 82 (7) ◽  
pp. 1130-1134 ◽  
Author(s):  
VANESSA SILVA ◽  
JOÃO NUNES ◽  
ANÍCIA GOMES ◽  
ROSA CAPITA ◽  
CARLOS ALONSO-CALLEJA ◽  
...  
Keyword(s):  
Public Health ◽  
Escherichia Coli ◽  
Antibiotic Resistance ◽  
Antimicrobial Resistance ◽  
Health Problem ◽  
Antibiotic Resistance Genes ◽  
Public Health Problem ◽  
Commercial Fish ◽  
E Coli ◽  
Raw Fish

ABSTRACT We studied 50 antimicrobial resistance mechanisms associated with Escherichia coli strains isolated from five species of commercial fish to evaluate the carriage and type of extended-spectrum β-lactamases (ESBLs) in these isolates. One hundred fifty samples of fresh raw fish were collected from large supermarkets and fish markets in northern Portugal during 2017. Thirty samples from each species were screened for the presence of E. coli and ESBL-producing E. coli. The samples were spread onto Levine plates with or without cefotaxime (2 μg/mL). The sensitivity of the isolates was determined for 16 antibiotics. The resistance and virulence genes were investigated by PCR. From the 150 samples, 45 E. coli isolates were recovered, and 3 of these isolates produced ESBL. All of these ESBL-producing isolates were resistant to β-lactams and harbored the blaCTX-M-1 and blaTEM genes, and all belonged to phylogenetic group A. One ESBL-producing E. coli isolate also was resistant to tetracycline and harbored the tet(A) gene, and another isolate was resistant to streptomycin and harbored the aadA gene. The remaining E. coli isolates were resistant to individual or combinations of the following antibiotics: tetracycline (16 isolates), sulfamethoxazole-trimethoprim (10 isolates), streptomycin (9 isolates), ampicillin (8 isolates), and chloramphenicol (2 isolates). The blaTEM, tet(A), aadA, and cmlA genes and combinations of sul genes were detected among most isolates that were resistant to ampicillin, tetracycline, streptomycin, chloramphenicol, and sulfamethoxazole-trimethoprim, respectively. The unmonitored and excessive use of antibiotics in aquatic environments promotes the development and propagation of antimicrobial resistance, and fish can be reservoirs of antibiotic resistance genes, which can easily be transmitted to humans through the consumption of raw fish, creating a public health problem. HIGHLIGHTS

scholarly journals Assessment of the Contamination of Some Foodstuffs byEscherichia coliO157 in Benin, West Africa

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Honoré Sourou Bankole ◽  
Victorien Tamègnon Dougnon ◽  
Roch Christian Johnson ◽  
T. J. Dougnon ◽  
Boniface Yehouenou ◽  
...  
Keyword(s):  
Public Health ◽  
Escherichia Coli ◽  
West Africa ◽  
Health Problem ◽  
Meat Products ◽  
Public Health Problem ◽  
Foodborne Illness ◽  
Pathogenic Bacterium ◽  
Safety Control ◽  
E Coli

Escherichia coliO157 is a pathogenic bacterium causing haemorrhagic colitis. It represents a serious public health problem in Northern America and Europe, which can plague Africa. Most cases of mentioned poisoning were related to contaminated meat products and vegetables. The present work aimed to estimate the prevalence ofE. coliO157 in meat and vegetables in Benin. For this purpose, 6 lots of faeces samples from pigs and 8 from cattle were collected at the farms on the outskirts of Cotonou. Similarly, 20 samples of carcasses, 20 samples of intestines and stomach, and 20 surfaces samples of slaughtering equipment were taken. Vegetables and environment materials in gardens have also been sampled for 84 samples. Bacteriological analyses revealed a percentage of contamination of 50% for pig faeces and 25% for cattle ones. All the meats from stalling parks have been contaminated by this bacterium. For vegetables, 14.6% of samples were contaminated byE. coliO157. The presence of this pathovar in animal breeding and slaughtering environment and in the gardens shows that Benin is not aware of the risks of foodborne illness associated with the consumption of contaminated products. Therefore, it urges including that germ in a systematic search during safety control of food products in Benin.

scholarly journals An Overview of Management of Cancer Approach with Medical and Dental Considerations

2021 ◽  
Vol 5 (2) ◽  
pp. RV6-RV8
Author(s):  
Debashis Roy ◽  
Najmus Sahar ◽  
Pradeep Tangade ◽  
Surbhi Priyadarshi ◽  
Mushahid Hasan
Keyword(s):  
Public Health ◽  
Developing Countries ◽  
Oral Cancer ◽  
Health Problem ◽  
Public Health Problem ◽  
Major Public Health Problem ◽  
Cancer Management

This review emphasizes about making the members of the professional Colleges aware of some important aspects of oral cancer in particular & cancer of body in general and its impact on the Dental Surgeons to be a part of the weapon against fighting this devastating disease. Cancer is the major public health problem affecting developed and developing countries. Therefore this review focusses on cancer management by taking into mind dental and medical considerations.

scholarly journals Hemolytic Uremic Syndrome: An Increasingly Recognized Public Health Problem

2018 ◽  
Vol 11 ◽  
pp. 117954761878513
Author(s):  
Takuya Murakami ◽  
Tetsu Akimoto ◽  
Tomoyuki Yamazaki ◽  
Hiromichi Yoshizawa ◽  
Mari Okada ◽  
...  
Keyword(s):  
Public Health ◽  
Escherichia Coli ◽  
Acute Pancreatitis ◽  
Hemolytic Uremic Syndrome ◽  
Health Problem ◽  
Public Health Problem ◽  
Hemorrhagic Colitis ◽  
Severe Thrombocytopenia ◽  
Escherichia Coli O157 ◽  
Uremic Syndrome

A 28-year-old man was referred and admitted to our hospital due to Escherichia coli O157–mediated hemorrhagic colitis with severe thrombocytopenia. A systemic workup concluded that the patient had acute pancreatitis as well as hemolytic uremic syndrome. The patient was ultimately discharged, with his platelet count having recovered. Our case serves an illustrative example of potentially serious complications of an increasingly recognized public health problem. Systemic studies on this topic are insufficient, and we strongly recommend the further accumulation of more experiences like ours. Several diagnostic and management concerns that emerged in this case are also discussed.

scholarly journals Virulence characteristics and the molecular epidemiology of enteroaggregative Escherichia coli isolates from travellers to developing countries

2007 ◽  
Vol 56 (10) ◽  
pp. 1386-1392 ◽  
Author(s):  
David B. Huang ◽  
Jamal A. Mohamed ◽  
James P. Nataro ◽  
Herbert L. DuPont ◽  
Zhi-Dong Jiang ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Developing Countries ◽  
Molecular Epidemiology ◽  
Virulence Genes ◽  
Acute Diarrhoea ◽  
E Coli ◽  
Gene Profiles ◽  
Faecal Samples ◽  
Number Of Genes ◽  
Virulence Properties

Enteroaggregative Escherichia coli (EAEC) is associated with diarrhoea among travellers to developing countries. EAEC virulence properties predisposing to illness are not clear. Sixty-four EAEC strains identified by a HEp-2 cell assay and isolated from faecal samples from US and European travellers to developing countries were studied for the prevalence of 11 putative virulence genes by PCR: 49 EAEC strains from adults with acute diarrhoea and 15 EAEC strains from adults without diarrhoea. E. coli strains from the stools of healthy travellers to the same region were used as controls. EAEC carrying aggR, aap, astA and set1A were identified individually more often in the stools of subjects with diarrhoea compared with those without diarrhoea (P<0.05). EAEC isolates with two or three of these genes were associated with diarrhoea compared with EAEC isolates without the presence of these genes (P<0.05). Subjects with diarrhoea who shed EAEC isolates positive for these genes were more likely than subjects shedding EAEC negative for these genes to pass stools with gross mucus (57 vs 14 %) and faecal leukocytes (40 vs 7 %) (P<0.05). This study shows the heterogeneity of gene profiles of EAEC strains found in the stools of international travellers and suggests that the presence of aggR, aap, astA or set1A, the number of genes present and stool characteristics may be markers for more virulent EAEC strains.

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