I grew up in Lyme (yes, the namesake of this illness). My brother was one of the first to contract Lyme disease in the early 80s, and was paralyzed by Lyme-induced meningitis. Since we both played outside a lot and owned several dogs, we had extensive anti-tick protocols: pants tucked into socks, anti-tick spray for clothes, tick examinations for both kids and dogs after coming in, and so forth. IIRC, once you get it you have it forever.
As for my brother, he got better, and as far as I know hasn't had a flareup in decades.
"Even after you've had the COVID-19 vaccine, you still need to wash hands, watch distance and wear a mask because you can still transmit the virus even though you're not going to get sick." - NIH Director Dr. Francis Collins