Transmissions

Transmissions

Most Transmissions are the same for every plague. Here is the list of transmissions and what each one does:

Tier 1 Transmissions

Tier 1 Transmissions are the transmissions that are available to you right at the start of the game without using any DNA points.

Tier	1	Transmissions
Icon	Name	Effect	Base DNA Cost	Prerequisite
[1]	Bird 1	Birds become susceptible to infection. Avian carriers increase infectivity, land transmission and mutation	-12	None
[2]	Rodent 1	Common flea susceptible to infection. Increase infectivity, especially in urban regions and mutation	-10	None
[3]	Livestock 1	Livestock susceptible to infection. Increase infectivity, especially in rural regions and mutation	-7	None
[4]	Blood 1	Gives organism ability to spread through blood to blood contact. Increases infectivity, especially in poor regions and mutation chance	-8	None
[5]	Insect 1	Insects susceptible to infection. Carrier insects increase infectivity, especially in hot climates and chance of mutation	-9	None
[6]	Air 1	Gives pathogen ability to travel on dust particles. Increase infectivity, especially in arid environments and plane transmission	-9	None
[7]	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 are the transmissions that are available to you after buying one Transmission in that Transmission type.

Tier	2	Transmissions
Icon	Name	Effect	Base DNA Cost	Prerequisite
[8]	Bird 2	Avian brain tissue compromised causing birds to attack other species. Increases mutation, infectivity and land based transmission.	-18	Bird 1
[9]	Rodent 2	Rodents directly susceptible to infection. Increase infectivity, especially in urban regions and mutation.	-16	Rodent 1
[10]	Livestock 2	Wildlife susceptible to infection. Increase infectivity, especially in rural regions and mutation.	-12	Livestock 1
[11]	Blood 2	Infected bodily fluids able to pass through mucous membranes. Increases infectivity, especially in poor regions and mutation chance.	-13	Blood 1
[12]	Insect 2	Increases rate of transfer between insects. Increase infectivity, especially in hot climates and chance of mutation.	-20	Insect 1
[13]	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
[14]	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 are the transmissions that are available to you after buying two transmissions that have the same infection type.

Tier	3	Transmissions
Icon	Name	Effect	Base DNA Cost	Prerequisite
[15]	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
[16]	Extreme Hematophagy	Pathogen uses host lymphocytes to replicate. Increase in infectivity, especially in poor regions and mutation chance.	-24	Insect 2, Blood 2
[17]	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