I really liked the concept of this, the first typing game i've ever played.
One criticism is that it was a bit annoying to have to delete the extra letters typed when clearing the virus from keys it had just infected, this isn't the case if you let something become infected as it seems only the last infected key will still type.
It also felt really easy at the start but the difficulty scaled really well other than the previously mentioned issue.
Good work for 48 hours, really enjoyable to play.