What is Lyme Disease?

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Infectious disease specialist Dr. Brad Spellberg explains that Lyme disease is an infection caused by a bacteria that’s transmitted when a tick is attached for 24 to 48 hours. Initial symptoms include a red rash shaped like a bull's-eye or target. Antibiotics can be effective when diagnosed early. If Lyme disease goes untreated, it can cause arthritis, joint swelling and inflammation.