Infectious diseases have been with us for millennia and continue to pose a threat, from the irritation of flu season... to the potential extinction of our species. We instinctively fear them and alter our behaviour as a result. The reason we bury bodies six feet deep is because that was the depth that stopped plague transmission from the dead in the Middle Ages. Many religious practices, such as avoiding certain meats, were established because of foodborne disease transmission. In The Top Ten Diseases of All Time, Stacey Smith? presents the top ten deadliest diseases and their effects...