Stages of Infection are a feature in Plague Inc. It shows images to represent how the disease effects its hosts.
Standard
In the standard plague types mobile version, it shows red cells in a petri dish. They gradually grow larger when the disease is evolved. However, in Plague Inc Evolved, it shows a model of the plague that gradually multiplies when the disease is evolved. They can be found here.
Neurax Worm
In the Neurax Worm DLC, it shows the development of the worm's tendrils, and which parts of the brain they control.
Necroa Virus
In the Necroa Virus DLC, it shows the development of the host to its eventual zombie state. The stages are shown below:
Simian Flu
In the Simian Flu DLC, it shows the evolution of apes and humans, and how they switch places in nature.
Shadow Plague
In the Shadow Plague DLC, it shows the development of the host to its vampiric state. The stages are shown below:
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Standard
In the standard plague types mobile version, it shows red cells in a petri dish. They gradually grow larger when the disease is evolved. However, in Plague Inc Evolved, it shows a model of the plague that gradually multiplies when the disease is evolved. They can be found here.
Neurax Worm
In the Neurax Worm DLC, it shows the development of the worm's tendrils, and which parts of the brain they control.
Necroa Virus
In the Necroa Virus DLC, it shows the development of the host to its eventual zombie state. The stages are shown below:
Simian Flu
In the Simian Flu DLC, it shows the evolution of apes and humans, and how they switch places in nature.
Shadow Plague
In the Shadow Plague DLC, it shows the development of the host to its vampiric state. The stages are shown below:
Trivia
- The Shadow Plague, at three separate stages, has the lowest number of development stages of any plague.
- The Neurax Worm and Necroa Virus, at seven separate stages, have the most development stages of any plague. The latter is only true in the mobile version of the game; the Neurax Worm remains the disease with the most development stages in Evolved.