I think state of the art understanding is that some of the communicable disease can be caught in under 24 hours now, 48 hours is way too optimistic. I've read

I think state of the art understanding is that some of the communicable disease can be caught in under 24 hours now, 48 hours is way too optimistic. I've read from a few researchers that if you find a tick, just start taking the 21 day antibiotic course right away regardless - even if the thing just dug in.