| [isolation and characterization of injured coliforms from the drinking water distribution network of la plata, argentina]. | we screened the la plata drinking water distribution network for fecal and total coliform bacterial indicator by purification procedures, cultivating 66 membrane-filtered samples from the two networks on m-t7 agar. subterranean and river-derived water yielded 13 and 18 confirmed gram-negative bacillus isolates, with 54% and 72% representing total coliforms, respectively. those from the former source were klebsiella oxytoca, enterobacter agglomerans, and enterobacter aerogenes and from the latter ... | 2001 | 11407022 |
| resistance to antibiotics in injured coliforms isolated from drinking water. | we studied the antibiotic sensitivity of injured coliforms isolated from drinking water of la plata, argentina. the antibiotic sensitivity test by the agar diffusion method were proved in: klebsiella oxytoca (14 strains), enterobacter aerogenes (4 strains) and enterobacter cloacae genomic group 3 (14 strains). we found that while these impaired total coliforms were sensitive to piperacillin-tazobactam (taz), netilmicin (ntl), ofloxacin (oflx), and norfloxacin (nflx) (100%), they had resistant to ... | 2001 | 11471826 |
| influencing factors in the occurrence of injured coliforms in the drinking water distribution system in the city of la plata, argentina. | the objective of this study was to evaluate the influencing factors in the occurrence of coliforms in the drinking water in la plata (argentina) from june 1999 to june 2001. a total of 180 samples were collected from rio de la plata (102 samples) and puelche aquifer (78 samples); 45 samples were collected for each of the four seasons. the membrane filter procedure was used for isolating bacteria, and each sample was tested for chlorine and ph. the highest percentage of samples positive for colif ... | 2010 | 20154384 |