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Treatment for repeated Strep Throat

Discussion in 'Other Health News and Research' started by Glynis Steele, Sep 3, 2011.

  1. Glynis Steele

    Glynis Steele Senior Member

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    Newcastle upon Tyne UK
    From Science Daily, for difficult to treat Strep Throat.

    http://www.sciencedaily.com/videos/2006/1007-sick_of_strep_throat.htm

    Glynis x


    Sick of Strep Throat
    With New Antibiotics, Pediatricians Fight Proxy War on Bugs
    October 1, 2006 Strep throat has become harder to fight using penicillin or amoxicillin, but that's not because the Streptococci have developed a resistance to those drugs. Instead, more than 50 percent of children have bacteria in their throats that protect strep germs. New versions of antibiotics called cephalosporins are targeting the other bacteria, improving the odds of successful treatment fivefold.


    --------------------------------------------------------------------------------
    ROCHESTER, N.Y. -- It's that time of year!

    Like most 7-year-olds, Josh Butler has no time for sick days. But every winter, Josh is sidelined with strep throat. Josh usually gets the drug amoxicillin, but it never works. He always needs a second treatment with a different drug.

    "It was kind of frustrating," Josh's mom, Nikki, says. "'Oh my goodness. Why can't we just get this right the first time?'"

    Strep throat is the second-most-common reason children get antibiotics. But the gold standard antibiotics they get don't always clear up the infection.

    Pediatric infectious disease specialist Michael Pichichero, of the University of Rochester Medical Center in New York, says, says the standard strep drugs -- amoxicillin and penicillin -- fail in about 25 percent of kids. "Strep is not actually resistant to penicillin or amoxicillin so, that cannot explain the failures that we're seeing," he says.

    Instead, other bacteria are the problem. More than half of kids have bacteria in their throats that protect strep germs.

    Dr. Pichichero says, "This is very much different from 20 or 30 years ago where almost all children treated with penicillin and amoxicillin would be cured."

    But his research shows newer drugs can kill strep. One in four kids fails treatment with penicillin. One in six fails newer drugs called cephalosporins. Only one in 20 fail the newer versions of those drugs. The newer antibiotics only need to be taken for four to five days, rather than the 10-day course of the older drugs.

    Nikki thinks Josh will get strep throat again this winter, but she's hoping the newer drugs will take care of it the first time around.

    BACKGROUND: Researchers at the University of Rochester Medical Center have found that a short treatment of a newer class of antibiotics is more effective than the traditional 10-day dose of older antibiotics like penicillin and amoxicillin to treat strep throat. The Rochester scientists reviewed over 47 studies over the past 35 years involving more than 11,000 children and found that 25 percent of children treated for strep throat with penicillin ended up back in the doctor's office within three weeks.

    HOW ANTIBIOTICS WORK: Infections are caused by single-celled organisms called bacteria, which can sometimes evade the body's immune system and begin reproducing. Antibiotics kill those harmful bacteria in various ways, such as preventing a bacterium from turning glucose into energy, or preventing it from construct a cell wall. The bacteria die instead of reproducing. Antibiotics are like selective poisons, because they target bacteria and not the body's own cells. They are not effective against viruses, however. Unlike bacteria, a virus isn't a living, reproducing lifeform, just a piece of DBA or RNA. A virus injects its DNA into a living cell and the cell itself reproduces more of the viral DNA. There is nothing to "kill," so antibiotics don't work on viruses.

    ABOUT STREP THROAT: Most sore throats are caused by viruses and generally clear up without medical treatment. Strep throat is an infection caused by a type of bacteria, and thus needs treatment with antibiotics. Symptoms include fever, stomach pain and red swollen tonsils. The bacteria can be transferred to others by sneezing, coughing or shaking hands. A doctor will usually take a throat culture to test for strep throat. Lack of treatment can lead to other health problems, such as rheumatic fever (which can damage the heart), scarlet fever, blood infections or kidney disease.

    DRUG RESISTANCE: Bacteria are highly adaptive, and over time they naturally develop resistance, protecting them from incoming germs (and antibiotics) and making them harder to kill. Repeated exposure to penicillin and amoxicillin can result in a throat full of bacteria that can shield strep germs from the older drugs. The surviving bacteria then reproduce more and become more dominant. Sometimes parents discontinue antibiotic medication prematurely when their children begin to feel better, so the strep germ isn't entirely killed off, leading to much more severe infections requiring the use of even stronger drugs later on.

    Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.

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