DNA vaccine

DNA vaccination is a proposed experimental technique for protecting an organism against disease by injecting it with naked DNA to produce an immunological response. Thus far, few experimental trials have evoked a response sufficiently strong enough to protect against disease, and the usefulness of the technique, while tantalizing, remains to be conclusively proven in human trials. However, in June 2006 positive results were announced for a bird flu DNA vaccine and a veterinary DNA vaccine to protect horses from West Nile virus has been approved. In August, 2007 a preliminary study in DNA vaccination against multiple sclerosis was reported as being effective.
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injection of a gene that codes for a specific antigen, enabling the recipient to produce that antigen directly to achieve the desired immune response.