Morning, folks! My little girl is still the same, but tonight at 6 p.m. is 48 hrs. since the first dose, so I'm not expecting to see any improvement yet.
I found my Chicken Health Handbook, and it says the tick that spreads this spirochetes virus is found only in the southwest (I'm in Michigan). So, unless these ticks have migrated to my area, which I suppose can definitely happen, then it must have been caused by a mosquito bite.
I'll read the article gator provided - thanks so much!