13 Chapters of the Ship Captain's Medical Guide that would be a great reference for any outdoors pursuit. Why not download it to your phone for quick reference.
Latest medical advice is to remove ticks using Aerostart containing ether that freeze-dries the tick & kills it instantly so it falls out before being able to inject saliva containing allergen.
Video at 2:55 http://ow.ly/gfRIg and medical advice http://ow.ly/gfRJY
People are dying whilst walking the Kokoda Trail. Medical research presently being undertaken is point to hikers drinking too much water as the likely cause.