December 10, 2012 |
Scientists said Sunday that the Clostridium difficile epidemic from 2002 to 2006 - an outbreak of gastrointestinal illness that spanned hospitals across the globe - was caused by two closely-related strains of the bacterium and not one, as had been previously believed. Trevor Lawley of the Wellcome Trust Sanger Institute in Hinxton, England and coauthors from other institutions sequenced the genomes of C. difficile samples collected between 1985 and 2010, mainly from hospital patients. Analyzing the samples, they found the two lineages of the bacterium,which they named FQR1 and FQR2.
April 11, 2012 |
The U.S. Food and Drug Administration announced Wednesday that it will ask livestock producers, drug companies and veterinarians to curb the use of antibiotics to promote growth in food-producing animals - a widespread practice that has been shown to create drug resistance in microbes. The presence of such “superbugs,” as they're sometimes called, threatens public health because if they sicken humans, they can be impossible to treat....
September 5, 1999 |
The antibiotic era heralded by penicillin, streptomycin and sulfonamides is barely 60 years old yet is threatened with extinction unless we act quickly and wisely. The epicenter of the problem is found in our nation's hospitals, where 5% to 10% of the most seriously ill patients will develop a hospital-acquired infection caused--70% of the time--by an antibiotic-resistant bacterium.
May 8, 1996 |
Antibiotics have long been a favorite remedy to treat acne. Adults and adolescents with even mild outbreaks are sometimes treated with tetracycline or erythromycin to quickly clear blemishes. But doctors may be forced to become stingier with antibiotics. Several recent studies show that acne-causing bacteria, Propionibacterium acnes--or P. acnes--have developed strains that resist both topical and oral antibiotics.
April 11, 2012 |
No place on Earth demonstrates the resilience or inventiveness of life quite like Lechuguilla Cave, whose subterranean tunnels stretch for 130 miles through Carlsbad Caverns National Park in New Mexico. Deep in the cave's most arid recesses, deprived of all sunlight and mostly starved of life-giving water, a lush garden of bacteria grows. Untouched by humans for all of their 4 million years, these strains of bacteria thrive on the harsh minerals of the geological formations to which they cling and fend off other life forms that would prey on them.
April 27, 2000 |
Researchers have concluded that a Nebraska boy's infection by salmonella bacteria resistant to a widely used pediatric antibiotic came from cattle on his farm. The report has heightened concerns of public health officials that the routine use of antibiotics by farmers to treat and promote the growth of livestock is reducing the ability of similar antibiotics to cure humans of infections.
August 16, 1987 |
Bacteria, which cause a wide variety of diseases in humans ranging from diarrhea to pneumonia, appear to be developing resistance to medicine's arsenal of antibiotic drugs at an alarming rate around the world. More types of bacteria are becoming resistant to antibiotics, and organisms already resistant to one drug are developing resistance to new drugs, according to a new government-sponsored study. "You have to say it's serious," said Dr. Stuart B.
December 13, 1991 |
In a recent study, researchers in Seattle found antibiotics highly effective in preventing persistent urinary tract infections in all but two young women they studied. Laboratory tests uncovered the apparent reason for the two exceptions. Both women harbored infection-causing bacteria in their systems that were resistant to antibiotics, making the drugs unable to kill the bacteria.
June 4, 1997 |
People striving to sterilize their homes and hands with anti-bacterial soaps may be fueling the development of dangerous organisms that defy known drugs, according to an authority on drug-resistant strains. Dr. Stuart Levy of Tufts University, president of the Alliance for Prudent Use of Antibiotics, said last week that the popularity of disinfectant cleaners could not come at a worse time--an era when hospitals are discharging patients earlier to complete their recoveries at home.