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Ticks are awful. They can give you Lyme disease, brain swelling, and can make you allergic to red meat. And as the world warms, they’re steadily creeping further north.

After Dr. Vett Lloyd contracted Lyme disease from a tick, she made it her mission to study these parasites. She tells us where ticks are, what to look out for, and what to do if you find one.

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