Welcome to Alpha-1 Canada's redesigned and enhanced website. It's packed with information and resources about alpha-1 antitrypsin (also known as alpha 1-antitrypsin deficiency, A1AD, ?1ATD, AATD). We hope that our new site's features will better serve your needs and meet your expectations. You have my assurances that the Alpha-1 Canada team has taken great care in gathering and publishing the most current and accurate information about our disease. more... See more text