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Memphis-based US Biologic is ready to take a vaccine to market that could help the fight against Lyme disease

Let’s begin with a blacklegged tick. At the risk of anthropomorphizing, we’ll call him Hank. A fledgling tick, Hank is a larva, and to move into the next stage of his life cycle, a nymph, he needs a meal — specifically, a blood meal. So, young Hank, ever determined, latches on to a white-footed mouse — we’ll call her Lisa — and begins to feed. But there’s a problem. Lisa is infected with the bacteria that causes Lyme disease; and now, it’s spread to an unwitting Hank. He’s become a vector.

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