Questions: The causative agent for Lyme disease is.

The causative agent for Lyme disease is the bacterium Borrelia burgdorferi.

Explanation:

• Borrelia burgdorferi is a spirochete bacterium and is the primary cause of Lyme disease in North America.
• Lyme disease is transmitted to humans through the bite of infected black-legged ticks, also known as deer ticks.
• Other species of Borrelia, such as Borrelia afzelii and Borrelia garinii, can cause Lyme disease in Europe and Asia.

In summary, the causative agent for Lyme disease is Borrelia burgdorferi.