Using antibiotics on the farm to raise animals contributes to the production of antibiotic–resistant germs or “superbugs.” All animals carry bacteria in their intestines and on their bodies. Giving antibiotics to animals will kill large amounts of bacteria, changing their microbiome (<–good explanation here) and regular “good” bacteria too. Because 60% of the antibiotics used in animals are also used to treat human diseases, with time when antibiotics are used routinely, the bacteria become resistant, survive and multiply. If those resistant bacteria are transmitted to people, we don’t have as many medicines to eradicate them. Therefore, risks develop to humans when these “superbugs” thrive in animals and are transmitted through our food source. Over time, more and more infections carried in the food we eat will lack proper treatments. What we choose to eat will shape our risk.
Susceptible and resistant animal pathogens can reach humans through the food supply, by direct contact with animals, or through environmental contamination. American Academy of Pediatric Technical Report
Antibiotics used for infections in animals should be encouraged but antibiotics used to promote rapid growth and weight gain in animals likely should not (overuse). The majority of tonnage of antibiotics used in raising animals are often used for growth promotion and efficiency meaning they are used to keep meat cheaper, not necessarily safer. Hard to find clear data on exactly what % is used for disease treatment and what % is used for growth. Read full post »