No, I'm not pretending to be either a mathematician or a statistician, but however you measure it the overall risk is low.
I have every sympathy with anyone unfortunate enough to get the disease, I know it happens and it's very bad luck to get the infection.
Perhaps the aim of media attention to Lyme Disease is to inform and educate, they have certainly done that, but it could be done with a little less sensationalism, even if it means selling fewer newspapers.