Map of sites (IMAGE) Experimental Biology Caption Tick and canine serum collection sites across Arizona, New Mexico, California and Mexico. Credit John VandenBrooks, Midwestern University Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC 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.