Blacklegged Tick (IMAGE) Cary Institute of Ecosystem Studies Caption Blacklegged ticks can carry blood-borne pathogens like the bacterium that causes Lyme disease. Credit Credit: Robin Moore Usage Restrictions To promote this press release License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.