The best way to do it is slowly spreading to stay in-noticed such as saving early to buy antibiotic resistance or genetic reshuffling. These upgrades come really handy later, because the government takes longer to find a cure.
Train. There is no easy way to get better. You may need to switch to a different method of training, or train more often. Try resistance, incline and interval training...
There's a trick to getting all the points. Save the game when you know you're going to win, and then keep loading it up and winning until you get all...
Tap the disease button, then go to abilities. First you must have drug resistance, which is the drug-looking thing. Upgrade the bottle with liquid in it.