Step

Process

Component

1

Mutation

Virus, AIV, LPAI

2

Aquatic Prey

Virus, Bacteria, Phytoplankton, Zooplankton,

Krill, Shrimp, Fish, Mudfish, Bullfrog, Crab

3

Transmission

Penguin, Waterfowl, Migratory bird,

Humpback whale

4

Reservoir

River, Lake, Pond, Tidal mud flat, Soil,

Desert dust, Wetland, Rice paddy

5

Poultry

Chicken, Duck, Turkey, Quail