Well, certainly I believe it's up to each individual farm operation to make sure they educate their employees on the proper biosecurity protocols that are in place. All livestock commodity organizations that I know of have resources that farmers can access to educate their employees on proper procedures and protocols.
I'm not sure that having an act that will penalize an employee because they made a mistake in that regard is really fair, unless that employee was hired under false pretences in order to get access to the building. That's a different situation. Otherwise, I wouldn't want to say that this act should try to handle a mistake by an employee bringing a disease in.