Résumé
Fresh water collected from Sohag Governorate, Middle Egypt, was weekly tested for the presence of Vibrio cholerae. The temporal relationship among V. cholerae levels found in water and the incidence of fresh water-associated Vibrio illness with onset dates in 1995 among persons living in the counties located adjacent to or near Sohag City were investigated. Vibrio cholerae was detected in 70 different water samples. More than one Vibrio species per water sample were also recorded. Collected Vibrio species were absent in 6.5% of the analyzed samples
Sujets)
Vibrio cholerae/isolement et purification , Incidence , Études de suivi , Microbiologie de l'eauRésumé
Eighty samples of the popular koushari meal obtained from 20 local restaurants of two big cities in Egypt, Cairo and Assiut, were examined microbiologically, at summer, autumn, winter and spring time to determine the number and types of microorganisms Reference koushari samples were prepared seasonally by the investigator under complete hygienic conditionsMicrobiological evaluation included the determination of aerobic plate count, lactic acid bacteria, fecal coliform, Escherichia coli, E Coli, Listeria monocytogenes, Salmonella, Staphylococcus aureus and Bacillus cereus; also, yeast, mold, pH and moisture content were measured Slightly low pH and moisture content of koushari, 62 and 66.12%, respectively, in addition to the production of certain inhibitory substances may explain the predominance of such types of microorganismsThe plant origin of koushari raw material could contribute the absence or the presence of the pathogens examined in low number