30 Aralık 2011 Cuma

COLD COMFORT


     Not so long ago, many of us resisted separating the glass, cans, and paper out of our garbage. What a hassle. Today, of course, every second-grader knows that the world's resources are limited and that recycling helps preserve them. We act locally, while thinking globally. It's time to bring the same consciousness to health care as we face a growing medical crisis: the loss of antibiotic effectiveness against common bacterial illnesses. By personally refusing—or not demanding—antibiotics for viral illnesses they won't cure, we can each take a step toward prolonging overall antibiotic effectiveness.
     Media reports have likely made you aware of this problem, but they have neglected the implications. Your brother catches a cold that turns into a sinus infection. His doctor treats him with antibiotics, but the bacteria are resistant to all of them. The infection enters his bloodstream—a condition known as septicemia—and a few days later, your brother dies. (Septicemia is what killed Muppets creator Jim Henson a few years ago.) Or instead of a cold, he has an infected cut that won't heal, or any other common bacterial disease, such as an ear or prostate infection.
   Far-fetched? It's not. The antibiotics crisis is real. Consider Streptococcus pneumoniae: This common bacterium often causes post-flu pneumonia. (Pneumonia and influenza combined are the country's sixth leading cause of death, killing 82,500 Americans in 1996.) Before 1980, less than 1 percent of S. pneumoniae samples showed any resistance to penicillin. As of last May, researchers at the Naval Medical Center in San Diego discovered that 22 percent of S. pneumoniae samples were highly resistant to it, with another 15 percent moderately so. And the most recent statistics from the Sentry Antimicrobial Surveillance Program, which monitors bacterial resistance at 70 medical centers in the U.S., Canada, Europe, and South America, show that 44 percent of S. pneumoniae samples in the U.S. are highly resistant, and worldwide, resistance is at an all-time high...

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