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Table 1 Experimental design for trials to assess alternate infection routes

From: Alternate routes of influenza A virus infection in Mallard (Anas platyrhynchos)

Experiment

Trial

# Ducks

Age of ducks (months)

Mode of inoculation

Housing

Cloacal drinking

Cloacal inoculation

5

4

Inoculation of 2 mL virus into the cloaca with canula

Each duck in a separate cage immediately following inoculation

Cloacal inoculation

5

6

Inoculation of 2 mL virus into the cloaca with canula

Each duck in a separate cage immediately following inoculation

Cloacal exposure

4

5

Placed in virus laden water (6 mL virus stock + 2 L water) in specially designed inoculation box

Each duck in a separate cage immediately following inoculation

Preening

Preening cages

5

6

Bathed with virus laden water (3 mL virus stock + 1 L water)

Each duck in a separate cage immediately following inoculation

Preening transmission (inoculation)

5

6

Bathed with virus laden water (3 mL virus stock + 1 L water)

Ducks placed in an experimental room with conspecifics

Preening transmission (contacts)

5

6

Unexposed contacts

Ducks placed in an experimental room with conspecifics