Plague Inc. Wiki
Register
Advertisement

Transmission traits can be altered in the Transmission screen. Evolving Transmission vectors increases infectivity, gives you bonuses in specific countries, and let you infect planes and ships easier. There are 7 Transmission traits to begin with, then more are unlocked for evolution as you evolve traits. Transmission traits are extremely useful in the early game as they do not increase severity, allowing your disease to remain undetected all whilst proliferating quickly. The only exception is with Mega Brutal difficulty, where diseases with no severity can still be detected.

Transmission traits require +1 DNA for every previous one you have evolved, though equipping Trans-Stasis makes it so every transmission stays at its base price regardless of how many other transmissions you've already evolved.

Tier 1 Transmissions[]

Tier 1 Transmissions do not have any prerequisites, and are all available to be evolved at the start of the game.

Icon Name Effect Base DNA Cost Prerequisite
Bird transmission@2x Bird 1 Birds become susceptible to infection. Avian carriers increase infectivity, land transmission and mutation 12 None
Rodent transmission@2x Rodent 1 Common flea susceptible to infection. Increase infectivity, especially in urban regions and mutation 10 None
Livestock transmission@2x Livestock 1 Livestock susceptible to infection. Increase infectivity, especially in rural regions and mutation 7 None
Blood transmission@2x Blood 1 Gives organism ability to spread through blood to blood contact. Increases infectivity, especially in poor regions and mutation chance 8 None
Insect transmission@2x Insect 1 Insects susceptible to infection. Carrier insects increase infectivity, especially in hot climates and chance of mutation 9 None
Stn Air 1 Air 1 Gives pathogen ability to travel on dust particles. Increase infectivity, especially in arid environments and plane transmission 9 None
Water transmission@2x Water 1 Pathogen can survive outside the body in fresh, warm water. Increase infectivity, especially in humid environments and ship transmission 9 None

Tier 2 Transmissions[]

Tier 2 Transmissions build upon the earlier tier, increasing infectivity and the special bonuses unique to the trait from which it came from.

Icon Name Effect Base DNA Cost Prerequisite
Bird transmission@2x Bird 2 Avian brain tissue compromised causing birds to attack other species. Increases mutation, infectivity and land based transmission. 18 Bird 1
Rodent transmission@2x Rodent 2 Rodents directly susceptible to infection. Increase infectivity, especially in urban regions and mutation. 16 Rodent 1
Livestock transmission@2x Livestock 2 Wildlife susceptible to infection. Increase infectivity, especially in rural regions and mutation. 12 Livestock 1
Blood transmission@2x Blood 2 Infected bodily fluids able to pass through mucous membranes. Increases infectivity, especially in poor regions and mutation chance. 13 Blood 1
Insect transmission@2x Insect 2 Increases rate of transfer between insects. Increase infectivity, especially in hot climates and chance of mutation. 20 Insect 1
Stn Air 2 Air 2 Gives organism ability to survive suspended in air for a long time. Increase infectivity, especially in arid environments and plane transmission. 14 Air 1
Water transmission@2x Water 2 Pathogen able to survive in chemically treated water. Increase infectivity, especially in humid environments and ship transmission. 15 Water 1

Tier 3 Transmissions[]

Tier 3 Transmissions combine multiple tier 2 transmissions to form an extremely potent vehicle of transmission and infectivity.

Icon Name Effect Base DNA Cost Prerequisite
Stn Extreme Zoonosis Extreme Zoonosis Infection crosses multiple species barriers. Increases infectivity, especially in rural and urban areas, mutation chance and cross-country transmission. 22 Bird 2, Livestock 2, and Rodent 2
Stn Extreme Hematophagy Extreme Hematophagy Pathogen uses host lymphocytes to replicate. Increase in infectivity, especially in poor regions and mutation chance. 24 Insect 2, Blood 2
Stn Extreme Bioaerosol Extreme Bioaerosol Pathogen bypasses air/water filters due to adaptive cellular shell. Increase infectivity, especially in humid & arid climates and plane/ship transmission. 16 Air 2, Water 2

Statistical Page[]

Normal Transmissions\Statistical Reference Page

🇪🇸 🇲🇽 This page needs a Spanish translation 🇦🇷 🇨🇴
Advertisement