In recent years, there have been increased number of antibiotic resistant bacteria. Considering the first antibiotics were only invented in the late 1920’s by Alexander Fleming, it has not taken very long for bacterial strains to mutate and become resistant to antibiotics they’re targeted by. This reflects the process of evolution happening in real time. This also means that humans need to invent a new way of combating bacterial infections. Innovative methods such as using bacteriophages or viruses to attack bacteria are being explored.
Here’s a link to a neat article in Science Daily that discusses one of the methods developed at MIT.