Borrelia burgdorferi (Lyme disease) is very closely related to Treponema pallidum (syphilis) and, left untreated, causes a very similar course of disease. Both species of bacteria, if not treated early, can become difficult or impossible to eradicate once they have established residency in the body.
Leptospira species are also spirochetes, but leptospirosis has a different set of symptoms. It can be rapidly fatal if not treated within days after exposure.
Those spirochetes are just like little corkscrews twisting their way through your body.
Bad news foe jackasses like me that hate to see the doctor LOL
I’ll just shake it off LOL