This sounds like a plan to me. The potatoes produce the vaccine, which can then be taken internally - eaten, taken as a pill, etc. It can be distributed to people third world countries, who are some of the people who need it the most, and are the ones that healthcare workers have the hardest time getting to.
Genetically Modified Potato Carries Hepatitis B Vaccine
- From ABC News
Wednesday, February 23, 2005
now, eat your vaccine
I ran across this at Desert Cat's site.