eradicating something like polio is great - it was the misunderstanding of the lab personnel that created vaccines in open air and free flow air labs that led to contamination...
Two books to read:
http://www.amazon.com/Biohazard-Chilling-Largest-Biological-World—Told/dp/0385334966/ref=sr_1_1?s=books&ie=UTF8&qid=1374403172&sr=1-1&keywords=Biohazard%3A+The+Chilling+True+Story+of+the+Largest+Covert+Biological+Weapons+Program
http://www.amazon.com/Germs-Biological-Weapons-Americas-Secret/dp/0684871599/ref=sr_1_1?s=books&ie=UTF8&qid=1374403250&sr=1-1&keywords=Germs+Judith+Miller
Very interesting. Thanks very much, BCW.