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Question 1

What are the three medically relevant species and what do they cause?

Answer 1

1-leptospira species cause leptospirosis
2-treponema pallidum: subspecies pallidum causes syphilis
3-borrelia burgdorferi causes Lyme disease
Not all spirochetes cause disease

Question 2

What are the characteristics of a spirochete?

Answer 2

Gram negative bacteria
Anaerobic
Helically coiled body
Most are free living
Corkscrew motility