I know a person who has brought eggs in on a company jet....some from Mexico and one time from Canada. These are the ones I know of but I feel certain there have been others.If they are an original importation, they are. Unless someone bypassed importation rules and snuck some eggs in.
I was gifted a couple chicks from one incident but wound up eating them. It's not a business for this person, but she uses the resultant stock to fortify her breeding program.
RISKY BUSINESS as far as I'm concerned.