Ticks die when they bite him. This man's immunity to ticks could pave the way for a tick vaccine.

Ticks die when they bite him. This man's immunity to ticks could pave the way for a tick vaccine.

Even if you haven't walked in tall grass recently, you can still get tick bites if you keep pets who spend a lot of time outdoors.Ladislav Kubeš/Getty Images <ul> <li>Richard Ostfeld gets a burning,… [+6216 chars]

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