The document "Antibiotics and Antibiotic resistance" contains the following paragraph:
The indiscriminate use of antibiotics in feed stuffs means that humans may receive unwanted doses of antibiotics in meats, eggs and milk. This exposure may cause the development of an immune or inflammatory response to the antibiotic so that the human cannot be treated with the drug at a later date. The practice has also resulted in the development of antibiotic-resistant strains of bacteria.
Here are my two questions that test general biology principles:
- How can there be an immune response to an antibiotic?
- I think that the answer to the first question will answer this one anyways, but for the sake of completeness: why would the immune response to an antibiotic prevent the antibiotic from being used again? (I may know how to answer this once I actually know what an immune response to an antibiotic looks like.)