8. Edible vaccines, a more controversial approach to vaccine development, have been investigated by scientists. Plants can be ge
netically modified to produce viral proteins and when ingested, these proteins ignite the immune system of the consumer. What are the advantages to edible vaccines? What are some of the possible disadvantages?
Edible vaccines are inexpensive therefore it is easy to be mass-produced. They are also stable at room temperature and no refrigeration is needed. However, a disadvantage is that oral tolerance can be developed because of the regular intake of the vaccine.
