Final answer:
Lyme disease is associated with the erythema migrans rash, and is caused by the Borrelia burgdorferi bacterium transmitted by Ixodes ticks.
Step-by-step explanation:
Lyme disease is associated with the symptom known as erythema migrans. This distinctive bulls-eye rash is a classic sign and is directly linked to the bacterial infection caused by the Gram-negative spirochete bacterium Borrelia burgdorferi.
Lyme disease, which can manifest in various symptoms including facial palsy and swollen knee, is transmitted via the bite of Ixodes ticks that are infected with this bacterium. It is important for Lyme disease to be diagnosed and treated early to avoid chronic complications affecting the nervous system, joints, and heart.