Question

What is the purpose of using genetic engineering to develop edible vaccines?
to make vaccines that are capable of lasting years in the body to prevent future infections
to diminish negative side effects that may occur from administering vaccines with syringes
to enhance the flavor of vaccines so people are more likely to use them
to prevent widespread diseases in developing countries without using syringes

Answer 1

to prevent widespread diseases in developing countries without using syringes

Edible vaccines (plants or foods engineered to express antigens) aim to provide low-cost, needle-free, heat-stable immunization that’s easy to distribute and administer in resource-limited settings.