Re-consent of subjects enrolled in clinical trials initiated prior to March 7, 2012 is not required. From a practical perspective, however, investigators and sponsors may choose to include the required language in consent forms for applicable clinical trials even if study initiation will occur prior to March 7, 2012.
Climate change will have the following effects on Lyme disease: An acceleration of the tick's developmental cycle, a prolonged developmental cycle, increased egg production, increased population density, and a broader range of risk areas.
In general, the risk for developing Lyme disease after a tick bite is only 1 - 3%. The risk varies depending on different factors: 1  The longer the tick has fed, the greater the risk. 2  Nymph ticks carry a greater risk than adult ticks, probably because they are often too small to be detected (about the size of a pinhead).he exact time of year for risk depends on a geographic region's seasons and how they affect the tick's breeding cycle. In general, the highest risk for Lyme disease onset is from June through August, and the lowest risk is from December through March. View & Print In-Depth Report Â».