We havent been getting the deep sub zero killing frosts like we used to, thus many more of the little buggers surviving through the winter. They have always been here. I pluck one off regularly...like all antibiotics, we can be doing more bad than good by running to the doc for every sniffle or tick bite. A tick needs to be on for 24 hrs to transmit Lyme disease. Most of us shower much more frequently than that. Pluck the little sucker off, wash, and watch the spot. Of course you are going to have a small local red irritation spot for a couple days, but you watch for a "bullseye' developing around the bite. Then you go to the doc.