I think these topics are interesting to pursue, particularly for me because a family friend recently passed away from a bacterial infection that wouldn’t respond to any antibiotics. Now, I don’t know all the facts of his case and I’m not assuming anything or saying that this is what caused his death, but the situation immediately brought to mind all those things I’ve heard of animal antibiotics causing antibiotic resistant bacterial infections in humans. Again, I’m not saying that this is what happened to him, it just sparked my interest in learning more about the topic. This article explains it all in a nutshell:
In short: when farmers stuff cows with antibiotics, the cows develop resistance genes, then pass them along to us.
More details can be found in this article:
Lead researcher Dr Pak-Leung Ho said: “These resistance genes may possibly spread to the human gut via the food chain, through direct contact with animals or by exposure to contaminated water sources.
“When the resistance genes end up in bacteria that cause infections in humans, the diseases will be more difficult to treat.”
But how do these bacteria become resistant to antibiotics? Here’s a great article explaining it all in great detail:
Just as immunization helps the human body fight disease by exposing the body to small amounts of a virus or bacteria, when bacteria are continually exposed to small amounts of antibiotics they can develop immunity to them. Over time this leads to the development of new, stronger strains of bacteria, with the antibiotic immunity passed on to subsequent generations.
Another example is staphylococcus aureus, a bacteria that is the most common cause of staph infections, and that can cause pneumonia, meningitis, toxic shock, skin abscesses, heart valve infections and other serious and deadly medical conditions. In the United States, almost every strain of s. aureus is now resistant to the antibiotics oxacillin, penicillin and amoxicillin, and strains of the disease have begun developing resistance to newer drugs like methicillin and vancomycin. The threat of prolonged illness or death from an s. aureus infection has increased as it has become more resistant and fewer drugs are able to effectively control or eliminate it.
Modern industrial farms are ideal breeding grounds for germs and disease. Animals live in close confinement, often standing or laying in their own filth, and under constant stress that inhibits their immune systems and makes them more prone to infection. According to the Union of Concerned Scientists, as much as 70 percent of all antibiotics used in the United States is fed to healthy farm animals.
It has been estimated that at least 18,000 Americans die every year from drug-resistant infections. In addition, the National Academy of Sciences calculates that increased health care costs associated with antibiotic-resistant bacteria exceed $4 billion each year in the United States alone—a figure that reflects the price of pharmaceuticals and longer hospital stays, but does not account for lost workdays, lost productivity or human suffering.
So that’s the scoop on how bacteria become resistant to the drugs that are supposed to treat us when we become infected, but what about antibacterial soaps and hand sanitizers? I’ve read that they’re “bad” but I never knew why. Since it’s sort of along the same lines, I thought I’d research that topic a little further too. In the same way explained above, bacteria become antibiotic-resistant through repeated exposure to antimicrobial agents, such as those found in soaps and hand sanitizers. By continually exposing bacteria to these antimicrobial agents, we are encouraging them to evolve. When we wash our hands with antibacterial soap, there is a residue of antimicrobial agent that gets left behind as well as bacteria that weren’t killed by the hand washing. These remaining bacteria must either evolve (mutate) or die. This is scary:
Some antibacterial agents go after the same physiology of bacteria that prescription antibiotics do. This means that if a particular strain of bacteria develops a resistance to an antibacterial agent in a household cleaner, it will also be resistant to similar attacks from prescription antibiotics. Microbiologists call this cross-resistance.
Read the full article here.
We stopped using antibacterial hand soap in our house a while ago and only use a natural hand sanitizer when soap and water aren’t available. (Our natural hand sanitizer uses plant extracts to kill the bacteria and leaves no reside behind to encourage bacterial mutation– read the article above for more info on that). What we use as an all purpose, natural soap/body wash/shampoo in our house is Dr. Bronner’s (look for a post soon about natural body care). This stuff is awesome and can be purchased in bulk to save you a few bucks. Trader Joe’s carries the peppermint scented liquid and bar soap and is much less expensive than Whole Foods, but Whole Foods has a huge selection of scents and bottle sizes. In Sacramento, the Natural Foods Co-Op has several scents in bulk in the makeup/vitamin section. I’m sure you can buy it lots of places online too. We still use regular dish soap and I’m not quite sure at this particular moment if it’s antibacterial, but if it is, I will probably start using Dr. Bronner’s as a dish soap too (or at least look into non-antibacterial dish soap).
To make into a hand/body soap, I fill a foaming soap pump up about 3/4 of the way with water then fill to the top with the Dr. Bronner’s soap. It’s that easy!
According to the Centers for Disease Control and Prevention (CDC), antibacterial soaps are not necessary, but washing your hands thoroughly with ordinary soap and warm water is one of the most effective ways to ward off infection.
More here.
How it works: Instead of “killing” germs, it removes them from your skin. Fats, oils and proteins offer safe havens to germs, and water alone is unable to break down these substances. Soap or detergent is necessary to remove microorganisms from the skin.
Anyway, it’s interesting food for thought.