And soon, that method could considered for use in America's food supply.

Chinese scientists managed to create an oral vaccine for SARS-CoV-2 using "mRNA bovine milk-derived exosomes" that program the body to elicit an immune response when exposed to spike protein, according to their study.

"These results indicated that bovine milk-derived exosome-based mRNA vaccine could serve as a new strategy for preventing SARS-CoV-2 infection. Meanwhile, it also can work as a new oral delivery system for mRNA," the study stated.

Unfortunately, this nascent technology already has the potential to be introduced into the U.S. dairy supply because there is no law requiring informed consent of vaccines in the food supply.

For example, a Missouri bill that aims to require the disclosure of genetically modified organisms and even medicines in the food is being opposed by lobbying groups like the Missouri Cattleman's Association, according to lawyer Thomas Renz.