Originally posted by blizzuntz:
I've admitted many patients with cellulitis and a majority of them ended up being MRSA. They would be admitted up to a week sonetimes and we gave them IV vancomycin which is the "last resort" antibiotic for most infections.
MRSA is a result of over prescribing antibiotics by doctors and patients not following the instructions for taking them. When a doctor says finish the bottle, it is to prevent this. When you take an antibiotic pill here and there you are allowing bacteria to adapt to the antibiotic and become resistant to it, hence MRSA. When you finish the bottle, even after your symptoms of infection are gone, you increase the chance of reducing the bacteria count to nil. Instead people like to take the antibiotic until the bacterial count is low enough to reduce their symptoms which usually means their is still bacteria present, just not enough to cause symptoms. Those bacteria can be adapting to the antibiotic and you could create MRSA.
I'm sure many of you know people who have antibiotic pills laying around from an old prescription, all those people have taken a prescription incorrectly and are exposing themselves to creating MRSA.
You lost me on "creating" MRSA. If you're talking about general antibiotic resistance then you are absolutely on the money, but MRSA refers to a specific type of staph, you can't "create" it.
Roughly 30% of the population is currently colonized with MRSA and even a higher percentage with some form of staph aureus which is one of the oldest microorganisms that we know, its essentially evolved with humans throughout our entire history and we've had a largely tolerable relationship together until the dawn of antibiotics when the weaker, more prevalent staph strains were killed off, resulting in far more aggressive and dangerous strains of staph remaining altogether.
MRSA is Methicillin resistant staph aureus, basically methicillin was a semi-synthetic antibiotic designed in the 50s to be the "perfect" antibiotic and not have the same weaknesses as penicillin has been showing, there were adjustments made in the way it attacked bacteria, particularly staph aureus, however it didn't take long for staph to become resistant to methicillin.....hence......MRSA......to start appearing in the 60s. There's many different variants of staph and different variants of MRSA, hospital-acquired MRSA and community-acquired MRSA are both quite different on a genetic level, there's also VRSA.
In general the overuse and improper use of antibiotics has led to widespread antibiotic resistance, as the CDC stated recently, we are now in the post-antibiotic world. Within 20 years, antibiotics will be good for treating minor infections and little else. There are also those who argue that while abuse and improper use of antibiotics has been a severe problem, it's always been inevitable that these bacterial organisms would adapt to antibiotics sooner or later. When you consider how many times bacterial organisms reproduce, every single genetic variation is just a roll of the dice and eventually, if you roll that dice enough, you're going to hit on a winner, if only entirely by accident.
[ Edited by Phoenix49ers on Oct 12, 2013 at 7:47 AM ]