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Do edible vaccines exist, and if yes, what is their mode of action? Are there any edible vaccines commercially available now?

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In short, yes.

A good example of an orally-administered vaccine is this Polio vaccine.

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  • $\begingroup$ Other than polio..?? Have anyone heard about that vaccine that are incorporated into food items like potato or banana? $\endgroup$ – Ashwin.N Sep 19 '15 at 14:03
  • $\begingroup$ Rabies, typhoid and many others are available as oral formulations. @Ashwin.N You are asking about a GM Food with vaccine properties? $\endgroup$ – WYSIWYG Sep 19 '15 at 14:21
  • $\begingroup$ Yes sir!! You are right!! I was asking about that only!! Can you tell me more about GM food with vaccine properties with real life examples!! Plz $\endgroup$ – Ashwin.N Sep 19 '15 at 15:34
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    $\begingroup$ Ah. My mistake. Yes, those exist. I am not aware of any large-scale deployments, but there have certainly been trials. Examples: Hepatitis B vaccine trial in transgenic potatoes: pnas.org/content/102/9/3378.short E. coli vaccine, also in potatoes (mouse trial): sciencedirect.com/science/article/pii/S0264410X98800200 $\endgroup$ – bshane Sep 19 '15 at 16:05
  • $\begingroup$ @Ashwin.N In that case can you edit your question to add this information? $\endgroup$ – WYSIWYG Sep 21 '15 at 4:44

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