| Direct contact with secretions and excretions, especially faeces from infected birds. |
| Because they have to swallow a radioactive capsule, their excretions are slightly radioactive. |
| Infected dogs also shed the virus through bodily secretions and excretions. |
| Susceptible birds become infected when they have contact with contaminated excretions or surfaces that are contaminated with excretions. |
| And as one might imagine, an area that walruses use to rest between feedings is riddled with a substantial amount of walrus excretions. |
| The reason for avoiding consumption of the rest of the body is unclear, but may be related to poisonous excretions from the skin of frogs. |
