The site of the leech bite was treated, and the farmer was given iron supplements to take for a month to manage his anemia, doctors said. Leeches are blood-sucking animals that have two suckers ...

(Those are bite marks on his foot.) Don't brush up against any shrubs either, like the spiky-leaved plant at right, or any trees for that matter. That rash on Mark's left arm? From a toxic tree resin.