I think we will see serious challenges for the human race from bacterial infections. The way we have "antibacterial" products everywhere from hand soap, to toys, etc. (Regular soap and water works fine folks.) The way antibiotics are incorrectly over prescribed for colds and flus. And the way antibiotics are pumped into livestock prophylacticly--the animals don't even have a bacterial infection. And then you have countries like India that have made the over/misuse of antibiotics into a art form. I'm afraid that we are just at the beginning of an epidemic of drug resistant bacterial infections.