How about one for nutritional deficiencies as well? Or more latent infections? Disease is more than a virus or bacteria wreaking havoc in the body, a good immune system fostered by proper nutrition gives people the strength to fight off infections and keep them at bay. Not to be a downer, this a great step for medicine in impoverished areas where medicine is hindered by finances (local or internationally supplied), but the potential other applications are too vast to not be questioned.