Word: coli
(lookup in dictionary)
(lookup stats)
Dates: during 2000-2009
Sort By: most recent first
(reverse)
When the Food and Drug Administration (FDA) issued a warning to consumers on Thursday about E. coli contamination in bagged spinach, it didn't come as a surprise to Michael Doyle. So far, about 100 people have fallen ill and one death has been connected to the dangerous E. coli 0157:H7 bacterial infection, and the director of food safety at the University of Georgia says that outbreaks like this one will only continue if produce manufacturers don't change their practices...
...coli 0157 is a particularly nasty strain of the E. coli that lives and thrives in our digestive tract. Animals such as cows tolerate 0157 far better than people, and often shed the bacteria in their feces. The bacteria can then infect crops such as lettuce, spinach, onions, or even apples when contaminated manure is used as fertilizer, or when contaminated water is used to irrigate fields. Most recently, E. coli 0157 found in bagged salads packaged by Dole sickened over two dozen people...
...feeding steers grain and supplements can create safety issues--for cattle and humans. Biologically, cattle are ruminants, exquisitely evolved to graze grass, and researchers have found that a grain diet raises the acidity in steers' guts. This breeds an acid-resistant form of E. coli that can spread from feces-contaminated carcasses to meat. Although USDA inspections are supposed to detect E. coli, the system is not perfect. In 1993, 600 people in Seattle got sick and three children died after eating E. coli-- tainted hamburger. Since then, outbreaks have triggered more recalls and led to a federal recommendation that...
...what to make of the other images on Cuteoverload.com? A tiny snail. A lizard curled up in the palm of someone's hand. Giant plush-toy versions of the e. coli and Gonnorhea viruses. And, genius though the concept may be, one suspects that Hallmark stores will not be featuring an aisle devoted to "cats'n' racks" - the site's term for the photo genre featuring felines nestled between breasts - any time soon...
...majority of evolutionary pathways for organisms are closed off by natural selection. Daniel M. Weinreich, a post-doctoral fellow in the Department of Organismic and Evolutionary Biology, headed a study—published in the journal Science last week—of the development of antibiotic resistance in E. coli. In particular, the scientists studied five point mutations that increases anti-biotic resistance in bacteria by five orders of magnitude. Since the overall mutation requires five sequential steps, there are 120 pathways from the initial, unresistant bacteria to the later drug-resistant bacteria. The study found that of 120 pathways...