1 . Vaccines
Oral vaccines have been in the works for many years as a possible solution to the spread of disease in underdeveloped countries, where costs are prohibitive to widespread vaccination. Genetically engineered crops, usually fruits or vegetables, designed to carry antigenic proteins from infectious pathogens, that will trigger an immune response when injested. An example of this is a patient-specific vaccine for treating cancer. An anti-lymphoma vaccine has been made using tobacco plants carrying RNA from cloned malignant B-cells. The resulting protein is then used to vaccinate the patient and boost their immune system against the cancer. Tailor-made vaccines for cancer treatment have shown considerable promise in preliminary studies.