Microbiological quality and safety of fresh cultivated and wild mushrooms commercialized in Spain.402 samples of 22 species of cultivated and wild fresh mushrooms sold in retail markets and supermarkets in Zaragoza (Spain) were studied to quantify their microbial load (mesophilic aerobic microorganisms, Pseudomonas genus, Enterobacteriaceae, lactic acid bacteria, total and thermotolerant coliform bacteria, Escherichia coli, yeasts and moulds) and to investigate the presence of E. coli O157:H7, Listeria monocytogenes, Salmonella spp., Staphylococcus aureus and Yersinia enterocolitica. The tot ...201121925034
astrovirus infection among children with gastroenteritis in the city of zaragoza, spain.the incidence of astrovirus infection in children less than 10 years of age with gastroenteritis in the city of zaragoza, spain, was analysed during a 12-month period. a total of 718 stool samples obtained from 534 children were examined. in 401 samples no routinely searched for pathogenic organism was detected; these specimens were then tested for the presence of astrovirus antigens. astrovirus was detected in the samples of 15 (5.5%) patients, a detection rate similar to that recognised for ye ...200010968327
[phenotypic characterization and distribution of yersinia in human and environmental samples].the distribution of species and phenotypes of yersinia isolated from environmental samples over an eight year period are compared to that of stool cultures obtained from patients of the same geographical location (zaragoza, spain). the number of samples and the percentage contamination were as follows: wastewater 362, 67.4%, freshwater 523, 13.4%, raw food 607, 24.5% and cooked food 1134, 7.9%. yersinia enterocolitica was isolated significantly more frequently than other species in wastewater, w ...19947946129
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