This invention concerns a method of making an anti-infective composition
for oral administration using an agent selected from the group consisting
of lactoferrin protein and lysozyme protein. The method comprises three
steps. The nucleic acid, which encodes a lactoferrin or lysozyme protein,
is expressed in a monocot seed. The protein is isolated from the seed.
This protein isolation compromises greater than 3% of the total soluble
protein in the monocot seed. The protein is then formulated for oral