Edible substances, bearing antigens, that cause activation of an animal’s immune system via that animal’s GALT (gutassociated lymphoid tissues). These “edible vaccines” are derived from transgenic plants (e.g., grains, tubers, fruits, etc.) or eggs (i.e., via the activation of the hens’ immune system to cause them to secrete desired molecules into the eggs they lay).
A genetically manipulated food containing organisms or related antigens that may provide active immunity against infection. Edible vaccines against many microorganisms are being developed, with the goal of using them to vaccinate children in non-industrialized countries where there are obstacles to the use of traditional injectable vaccines.