I get bitten every year, earlier this year I removed three, over three weeks. All from our own garden, the tiny little buggers, like grains of sand. I only know I have them as I react really quickly and get a red mark and itch like mad. I suspect most people don't even notice.
I got antibiotics a couple of years ago, because I picked one off by mistake, and left some head in my leg...... ugh.
But honestly, now I don't bother, I would be on antibiotics all summer, and they are really nasty, heavy duty jobs, and you can't go in the sun with them either.
DH had Lyme a couple of year ago, it was awful, took him a year to recover, so not to be taken lightly, he didn't get the rash, but did get ill very quickly.