Answer the following questions in complete sentences: 1. Recently, researchers have demonstrated that the bacteria that causes Lyme disease alter dendritic cells. How do T-cells work to protect us from pathogens like the one that causes Lyme disease?

2. Why do you think it is beneficial for a pathogen to make its host very sick without killing the host?

3. If these patients were treated with antibiotics, what clue would this have given doctors about the disease’s pathogen?

4. It is a common misconception that the immune system cannot combat pathogens it has encountered before. Explain why that statement is not true.

5. Using your knowledge of non-specific defenses, how could someone prevent Lyme disease in the first place?