I have been asked in the past how to prevent TYick-Borne diseases contraction, which can include Lyme disease. Appropriate guidelines include instruction on how to repel ticks and prevent tick bites, and how to dislodged ticks once a bite has occurred.
These two links on prevention refer to the Australian Lyme Disease Association and the Centre for Disease Control in the USA.
This video from the Tick Encounter Resource Centre shows how to remove ticks properly with tweezers.
Image Credit: John Tann from Flickr