Superbug known as ‘phantom menace’ on the rise in U.S.

  • metta

    Posts: 39099

    Dec 09, 2015 8:12 AM GMT
    Superbug known as ‘phantom menace’ on the rise in U.S.


    https://www.washingtonpost.com/news/to-your-health/wp/2015/12/03/superbug-known-as-phantom-menace-on-the-rise-in-u-s/
  • Posted by a hidden member.
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    Dec 14, 2015 3:29 PM GMT
    Am I summarizing this correctly by saying that this 'Superbug' binds with other bacteria making both more lethal, is prevelant in the intestines and urethra and is very contagious?? And it's spread through the ingestion infected food?? Is it a contagion that can be carried and transmitted any other way and what are the symptoms if any of someone otherwise healthy who comes in contact with it??
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    Dec 14, 2015 9:52 PM GMT
    No, it's just a confused bunch of hype.

    The Enterobacteraceae are a large family of bacteria that inhabit mammalian guts, and includes many common genera like Escherichia and Salmonella. There are billions of them in you right now.

    Recently, a few strains have been found that are resistant to carbapenem. Bacteria often swap resistance genes around amongst themselves. So there is the potential for carbapenem-resistance to spread.

    It costs them energy to do that, so these resistance genes are unlikely to be maintained unless there is an ongoing selective advantage. Such as in a patient undergoing carbapenem therapy. Sometimes genes do more than one thing, so there can be selective advantages that we don't know about.
  • metta

    Posts: 39099

    Dec 14, 2015 10:21 PM GMT
    ^
    Thanks for the explanation.