[fiftyfifty]

Vast quantities of antibiotics are used by agriculture in the US, with little regulation or control. The stuff is in our water and food supply, whatever additional increases allowing people to purchase/use antibiotics without a prescription seem pretty small by comparison.

[rectangletangle]

You're certainly correct. But in this case it might bolster human specific pathogens. I know there is some overlap between human an animal pathogens, but unfettered access to antibiotics might accelerate the problem for humans specifically (which is probably worse than the current prescription only policy in the US).

[hawkice]

My understanding is that resistance to human pathogens is driven by waste water contamination. Human excrement combined with industrial quantities of antibiotics.

I'm sure there is a smaller scale problem of human use, but that petri dish is the one that's causing the problems, is my understanding.