Been a big fan of these games...
Hope you read this:
Okay, first off: The game is too slow and not very interactive. I love how you can use points to make your disease stronger in all these interesting classes of 'upgrades'. The game is also extremely difficult. I once finally nabbed Madagascar but Peru shut up like a bunch of virgins. Also it seemed like later in the game it's hard to get Evolution points.
It also seems like there is no point for the greater resistance upgrades other than Drug Resistances. Once you get your Moisture, Heat, and Cold up to level 1 you can take over pretty much the whole country. By the way, which catagory does Madagascar fall in?!
I don't know what I would do, as I've been thinking and I can't seem to make up my own plan to make the game better. But I would:
Keep the points feature, but make it so that you get some resale value when you sell your old attributes.
Make the game more interactive instead of just sitting and waiting for a game of chance. Make the game have some sort of use for the slowest speed. Go more in depth of controlling your disease in a certain country. You know?
I also would make the game easier to beat, but take longer (but only if the game was fun, the way you have it I just want to win and get it over with as soon as I can.) If the game was more interactive it could last longer without seeming like a chore.
Also, the music was great, but I'd like some more options. I'd also like some in-game help instead of going to a different site. and the sites didn't help me too much.
Please keep trying to balance this game out into a awesome game. I look forward for the next one, hopefully.