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发帖数: 2410 | 1 Tue, 09/17/2013 - 10:10am
by Sabrina Tavernise
Federal health officials reported Monday that at least two million Americans
fall ill from antibiotic-resistant bacteria every year and that at least 23
,000 die from those infections, putting a hard number on a growing public
health threat. It was the first time that federal authorities quantified the
effects of organisms that many antibiotics are powerless to fight.
The number of deaths is substantially lower than previous estimates, in part
because researchers from the Centers for Disease Control and Prevention
stripped out cases in which a drug-resistant infection was present but not
necessarily the cause of death. Infectious disease doctors have long warned
that antibiotic resistance — in which bacteria develop defenses against
antibiotics used to kill them — threatens to return society to a time when
people died from ordinary infections.
“They have come up with hard numbers where it has been only guesswork,”
said Dr. Stuart B. Levy, a professor of microbiology at Tufts University and
the president of the Alliance for the Prudent Use of Antibiotics. “This
sets a baseline we can all believe in.”
In 2007, the C.D.C. estimated that about 100,000 people died every year of
infections they developed while in hospitals. Most of those infections were
believed to be resistant to some antibiotics, but not necessarily the most
widely used ones. And it was unclear how many of the deaths were caused by
the drug-resistant infections. Monday’s report quantifies that.
Dr. Steven L. Solomon, the director of the C.D.C.’s office of antimicrobial
resistance, acknowledged that the report underestimated the numbers, but
said that was by design. Researchers were instructed to be conservative and
to base their calculations only on deaths that were a direct result of a
drug-resistant bacterial infection.
“This is a floor,” Dr. Solomon said. “We wanted the cleanest number, the
least subjective number.” | c*******4
发帖数: 52 | 2 美国在抗生素应用上相对于中国算是控制很严的了。
按照达尔文的进化论，细菌也是在遵循适者生存的原理以求保持它们种群的进一步发展
。。。LOL... |
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