Plant-based Vaccines

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Plant-based vaccines are recombinant protein subunit vaccines. Ideally, the choice of plant species used to produce the selected antigen should allow for oral delivery in the form of an edible vaccine. These vaccines are well suited to combat diseases where there is a clear antigen candidate, and where the costs of production or delivery for any current vaccine are prohibitive. Several academic and industrial research groups are currently investigating the use of plant-based vaccines in both humans and animals. To date, the most advanced human vaccine projects have successfully completed phase I clinical trials, and animal vaccine projects have given promising data in early phase trials targeting specific animal species.