The states with higher rates of antibiotic use also tended to have higher obesity rates.Um... the southeast US is warm and moist. There are more active microbes there.
Here's some other maps. Those same states are also high in sleep disorders and heart disease and dental decay.
Antibiotics mess up the intestinal microbe population and promote pathogenic strains.
They may also contribute to gluten intolerance.
We should probably avoid them, but recurring infections are problematic too.
It's a real dilemma.