| prevalence and antimicrobial resistance patterns of salmonella from different raw foods in mexico. | the presence of salmonella was determined in 116 samples of poultry meat, 81 samples of pork, 73 samples of beef, 33 samples of cheese, 61 samples of fish, and 78 samples of vegetables collected from retail stores and supermarkets in hidalgo state (mexico). ninety-three salmonella strains isolated from raw foods were characterized, and mics were determined for 10 antimicrobials. salmonella was detected in 35.3% of poultry meat, 30.3% of cheese, 21.8% of vegetable, 17.3% of pork, and 15.1% of bee ... | 2009 | 19517722 |
| salmonella typhi resistant to chloramphenicol, ampicillin, and other antimicrobial agents: strains isolated during an extensive typhoid fever epidemic in mexico. | during 1972 a large epidemic, in excess of 10,000 cases, of typhoid fever occurred in mexico city, pachuca, and other communities of mexico. the main characteristic of the epidemic, in addition to the large number of persons affected, was the prevalence of a strain of salmonella typhi which was highly resistant to chloramphenicol both in vivo and in vitro, and which belonged to a single phage type, vi degraded approaching type a. of 493 strains of s. typhi studied during the outbreak, 452 (91.7% ... | 1973 | 4602828 |
| incidence and behavior of salmonella and escherichia coli on whole and sliced zucchini squash (cucurbitapepo) fruit. | the incidence of coliform bacteria (cb), thermotolerant coliforms (tc), escherichia coli, and salmonella was determined for zucchini squash fruit. in addition, the behavior of four serotypes of salmonella and a cocktail of three e. coli strains on whole and sliced zucchini squash at 25+/-2 degrees c and 3 to 5 degrees c was tested. squash fruit was collected in the markets of pachuca city, hidalgo state, mexico. cb, tc, e. coli, and salmonella were detected in 100, 70, 62, and 10% of the produce ... | 2010 | 20819351 |
| slaughterhouse wastewater treatment in a full-scale system with constructed wetlands. | this work evaluated the performance of a full-scale system with wetlands for slaughterhouse (abattoir) effluent treatment in the state of hidalgo, méxico. the treatment system consisted of a primary sedimentation tank, an anaerobic lagoon, and a constructed subsurface-flow wetland, in series. the wetland accounted for almost 30% of the removal of organic matter. in general, the treatment system achieved satisfactory pollutant removals, but the final effluent could not meet the mexican environmen ... | 2004 | 15508424 |