microbiological quality of fresh produce obtained from retail stores on the eastern shore of maryland, united states of america.the aim of this study was to investigate the microbiological quality of six types of fresh produce obtained from three retail stores located on the eastern shore of maryland, usa. a total of 414 samples representing basil, cilantro, lettuce, scallion, spinach, and parsley were analyzed for total aerobic bacteria (apc), total coliforms, escherichia coli, and three pathogenic bacteria (e. coli o157:h7, listeria monocytogenes, and salmonella), using standard methods. presumptive pathogenic isolates ...201626919815
survey for listeria monocytogenes in and on ready-to-eat foods from retail establishments in the united states (2010 through 2013): assessing potential changes of pathogen prevalence and levels in a decade.a multiyear interagency listeria monocytogenes market basket survey was undertaken for selected refrigerated ready-to-eat foods purchased at retail in four foodnet sites in the united states. food samples from 16 food categories in six broad groups (seafood, produce, dairy, meat, eggs, and combination foods) were collected weekly at large national chain supermarkets and independent grocery stores in california, maryland, connecticut, and georgia for 100 weeks between december 2010 and march 2013 ...201728437165
relatedness of listeria monocytogenes isolates recovered from selected ready-to-eat foods and listeriosis patients in the united states.pulsed-field gel electrophoresis and serotyping were performed for 544 isolates of listeria monocytogenes, including 502 isolates recovered from contaminated samples from 31,705 retail ready-to-eat (rte) food products and 42 isolates recovered from human cases of listeriosis. the isolates were from maryland (294 isolates) and california (250 isolates) and were collected in 2000 and 2001. the isolates were placed into 16 asci pulsogroups (level of relatedness within each group, > or =66%), 139 as ...200516332793
survey of listeria monocytogenes in ready-to-eat foods.the purpose of this study was to develop data on the risk of listeriosis to support a science-based strategy for addressing listeria monocytogenes in foods in the united states. eight categories of ready-to-eat foods were collected over 14 to 23 months from retail markets at maryland and northern california foodnet sites. the product categories included luncheon meats, deli salads, fresh soft "hispanic-style" cheeses, bagged salads, blue-veined and soft mold-ripened cheeses, smoked seafood, and ...200312696677
outbreak of listeriosis--northeastern united states, 2002.a multistate outbreak of listeria monocytogenes infections with 46 culture-confirmed cases, seven deaths, and three stillbirths or miscarriages in eight states has been linked to eating sliceable turkey deli meat. cases have been reported from pennsylvania (14 cases), new york (11 in new york city and seven in other locations), new jersey (five), delaware (four), maryland (two), connecticut (one), massachusetts (one), and michigan (one). culture dates ranged from july 18 to september 30, 2002; c ...200212437035
searching for the holy grail: hiv vaccine development in the new millennium.many reasons for the difficulty in developing an hiv vaccine were discussed at the 5th national symposium on basic aspects of vaccines. the april 1999 conference was attended by nearly 200 researchers. speakers included dr. neal nathanson of the national institutes of health (nih), who called hiv "particularly insidious." topics included envelope glycoproteins; enhancing ctl responses; soluble cd40 ligand trimer and its effect on growth of antigen-specific t cells; responses of immunized monkeys ...199911367310
Displaying items 1 - 6 of 6