General Information

Bacteria is a standard plague. As the first plague type available to choose, it possesses all normal abilities, symptoms and transmissions and has no major strengths nor weaknesses.

Special Ability

The special ability for Bacteria is Bacterial Resilience, which raises its survivability and effectiveness in all climates. It does not give drug resistance and the boost is worse than those provided by Cold/Heat Resistance individually.


  • The Bacteria was one of the 3 plagues from Pandemic, the spiritual predecessor to Plague Inc, alongside Virus and Parasite.
  • It is required to unlock the Insane Bolt achievement.

Stages of Evolution

  • Stage 1
  • Stage 2
  • Stage 3
  • Stage 4
  • Stage 5
  • Final stage


  • An unevolved Bacterium in Plague Inc: Evolveds disease screen.
  • Evolved Bacteria in Plague Inc: Evolveds disease screen.
Standard Plague Types


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