I have chosen to research antibiotic resistance.

I found the following blog post about the lack of new antibiotics entering the market and the dangers of bacteria mutating to become immune to all of the medicines we have today. Diseases that were curable in the 1990s might become deadly! Using antibiotics for a cold, or any other disease caused by viruses, just increases the chances that bacteria will become immune.

http://victoriaellis.scienceblog.com/132/what-will-your-life-be-like-without-antibiotics/

There are three easy ways to prevent resistance: not over-prescribing the drugs, having patients take the entire course and controlling resistant strains. The World Health Organization has been trying to warn people about the emergence of "superbugs," but they are still developing due to misuse of antibiotics. New drugs take about 10-20 years to release to market, and there are not many leads being investigated currently.

http://www.guardian.co.uk/science/2011/apr/07/antibiotic-resistance-bacteria