I tend towards the "that which does not kill me, makes me stronger" approach to sanitization. A good immune system is valuable, and oversanitizing
definitely weakens it, because you've had less exposure. Health-care people really are immune(ish) to a
vast amount of diseases because they're exposed to them while they're healthy, and they develop defenses against them.
Clean things, sure, but sanitization is overkill because the world is not a sanitary place to begin with. If you're not living in the world when it intrudes, it seems unlikely you'll be prepared. And antibacterial soap is ridiculously excessive for anyone not in healthcare; it all washes down the drain in the end, boosting diseases' resistance to it.
As to meat, I generally have found that less is better, and American diets tend to have a ton. I have doubts that zero is more healthy (and don't bother quoting / linking, I've read tons) than small amounts, much less veganism, but I definitely do better when I keep it pretty low.