This is awesome. Why limit it to infectious disease? Acute non-infectious disease (trauma, vascular events, cancer) would be a great next step, followed perhaps by common disease. This would be a tremendous way to learn pharm. At the end of the day, rote knowledge can lay down a nice structure for actual understanding. (I know this sounds backwards, but if you know the right answer then it makes it easier to remember the mechanism by which it is correct.)
I think games would be a great way to learn a lot of things. If I ever get time I want to make a "pathogen" video game - you would have to identify the pathogen and attack it with the right antibiotic or immune system component.
This is right up my alley. I'll be going to med school in a few months, and so I'm looking for study materials and methods (I plan on trying Anki). I think it's great that they're trying to make the study of medicine a bit more enjoyable than just rote memorization. Also, as someone who hopes to venture into entrepreneurship as a physician, it's really encouraging to read about such ventures.
There was a bit of a huff over it today, one of the main pieces of art they are using is heavily based on a piece from Magic the Gathering. <a href="http://www.mananation.com/art-plagiarism-healing-blade-game/" rel="nofollow">http://www.mananation.com/art-plagiarism-healing-blade-game/</a>
The only trouble I see with this is that it needs to stay up to date with current medical knowledge (which changes all the time). The game will quickly go out of date if it is not kept strictly aligned with current medical texts.
If I recall correctly, there was some anecdotal evidence that time committed to video game actually improves a surgeon's capabilities during an operation. If a card game can do the same for pharmacology, cheers to Nerdcore!