Spirochete transmission poster: how long has that tick been feeding on you?
This poster provides information on the probability of spirochete transmission as a function of the length of time that a tick feeds on a person. Photographs of nymphal I. scapularis ticks with a corresponding scale will aid physicians considering treatment of patients presenting a tick removed from the skin. A single 200-mg dose of doxycycline given within 72 hours after a tick bite can prevent the development of Lyme disease.
(N Engl J Med 2001;345:79-84.)

Large Poster (11″ X 17″)
Small Poster  (8.5″ X 11″)