One of the great concerns for our society going forward is "superbugs." These are nasty bacteria that are resistant to antibiotics and, as you can imagine, they are very difficult -- if not impossible -- to treat. Our penchant for antibiotic use has led to an increased chance of bacteria growing resistant to some of our medicines that were formerly hailed as miracle drugs. As you can imagine, infections caused by "superbugs" have a high fatality rate.
If there is a silver lining to the "superbug" problem, it is this: these bacteria aren't airborne, and there is an extremely low chance anyone can get these bacteria in public. Usually superbugs are transmitted in hospitals when medical equipment is not properly sterilized.