Final answer:
Lyme disease is considered to fall in the Group II category. It is a bacterial infection caused by Borrelia burgdorferi and primarily transmitted by black-legged ticks. Untreated Lyme disease can cause chronic disorders.
Step-by-step explanation:
The disease that is considered to fall in the Group II category is lyme disease. Lyme disease is a bacterial infection caused by the spirochete bacterium Borrelia burgdorferi. It is primarily transmitted to humans through the bite of infected black-legged ticks. Untreated Lyme disease can lead to chronic disorders in the nervous system, eyes, joints, and heart.