e440r:infected

I have used commands to infect the world. You must beat the game(its a very good seed) or die trying

Using ONLY commandblocks i have infected the world. Your goal is to beat the dragon before the infection kills you.

Note:If you play with friends if one of you gets infected and dies, the infection is transmitted telepathically and kills you all(that may not or may be because i couldn't code it otherwise).