Valid point omegaman, here is the response I always get whenever I try to email the CDC: (I literally have 6 of these automated replies for just one simple question. When I call them, they place me on hold and burn my minutes, so I never have a chance to speak to them What am I suppose to do? "Thank you for your inquiry to CDC-INFO. Your request has been forwarded to the appropriate CDC program for their assistance. Thank you for contacting CDC-INFO. Please do not hesitate to call 1-800-CDC-INFO, e-mail firstname.lastname@example.org, or visit www.cdc.gov if you have any additional questions. CDC-INFO is a service of the Centers for Disease Control and Prevention (CDC) and the Agency for Toxic Substances and Disease Registry (ATSDR). This service is provided by Vangent, Inc. under contract to CDC and ATSDR."