| incidence of histamine-forming bacteria and histamine content in scombroid fish species from retail markets in the barcelona area. | incidence and diversity of histidine decarboxylating bacteria were determined in samples of tunafish, bonito and mackerel purchased at different retail markets. histamine-forming bacteria occurred in a low proportion and always accounted for less than 0.1% of the total bacterial load in the fish samples studied. similarly, histamine content in fish samples also was low ( < 25 ppm) and all of them met current histamine standards established by the european union. histamine was found in 83.3% of t ... | 1996 | 8652349 |
| beta-lactamases involved in resistance to broad-spectrum cephalosporins in escherichia coli and klebsiella spp. clinical isolates collected between 1994 and 1996, in barcelona (spain). | the aim of this study was to evaluate the incidence of decreased susceptibility to broad-spectrum cephalosporins in enterobacteriaceae that lack inducible chromosomal bla genes, and to determine the enzymes responsible for resistance. from all clinically relevant enterobacteriaceae strains isolated between 1994 and 1996, 88 of 7054 escherichia coli, seven of 581 klebsiella pneumoniae and 23 of 166 klebsiella oxytoca strains were studied because of their decreased susceptibilities to broad-spectr ... | 2002 | 12039891 |
| spread of plasmids containing the bla(vim-1) and bla(ctx-m) genes and the qnr determinant in enterobacter cloacae, klebsiella pneumoniae and klebsiella oxytoca isolates. | we describe 12 vim-1-producing strains (7 enterobacter cloacae, 2 klebsiella pneumoniae and 3 clonal klebsiella oxytoca strains) detected among clinically relevant enterobacteriaceae isolates from routine cultures at the hospital del mar (barcelona, spain) from december 2006 to may 2007. | 2010 | 20089541 |