People magically becoming healthy

[Taylormario20]

Hi

While playing Plague inc I recentally encountered something strange. I was at the point where everyone had been infected, and the game had given me the message "there is no healthy people left in the world". At this point I started evolving lethal traits. After doing this, the game gives me the message that I am "killing too fast." I'm confused by this as I have already infected the whole world. After this, my plague just started to disappear! All infected people are suddenly healthy again! I thought I may have forgotten about the cure and had let it get to 100% buy it was only at 58%. This is, to say the least, very strange.