Edible Vaccines and Oral Immunization against Viruses: Prospects, Promises and Pitfalls

The lethality of infectious diseases can be largely minimized via implementation of crucial sanitary procedures such as vaccination. Vaccine is a biological preparation used to establish or improve immunity to a particular disease. Vaccines, made of killed or attenuated forms of microbes, are the main modes of defense and protection against several bacterial, viral and parasitic diseases. However, the process of production and purification makes them expensive and unaffordable to