Ticks do seem thicker this year, but if I remember correctly, the tick has to be on you for at least 24 hours before you run the chance of getting any disease.
Key to remember is to check yourself very thoroughly after each trek in the woods or fields. A nice hot shower and get your spouse, or someone, to check you where you can not see. Some of these things are so small, they just look like a speck of dirt.
Remember, if the tick has had time to burrow his head into your skin, do not pull it out. Coat the tick with fingernail polish, or Vaseline. This stops it from being able to breath and he will back out. Stick the little bugger in a plastic sandwich bag and put it in the freezer. If you do not develop a rash in a few days, then toss it out.
If you do develop a rash, get to the doctors office and bring the tick with you. The doctor has a better chance of finding out if it is lime disease by looking at the insect that bit you.
Had a young lady near us find a tick a week after she had been in the wood and developed a heck of a rash. She still suffers from muscle ache, fatigue and weakness. When I asked why she did not have her mom look for ticks, she said she was embarrassed to think of her mom seeing her "like that."