I recently found evidence that peanut allergies may be due to substances such as peanut oil added as adjuvants to vaccines. Could you comment on this?
Vaccine manufacturers have many ingredients that they do not list on the package, because they are considered a proprietary trade secret. These ingredients may include peanut oil, sesame oil, and other food oils. The refining of these oils can leave trace amounts of proteins in them which would be injected into the bloodstream. The same goes for the medium in which the viruses that are injected are grown (eggs, in the case of the H1N1 flu vaccine) - the risk is of introducing, via injection, animal or plant proteins into the bloodstream.
Normally, exposure to these proteins happens in the digestive system. The body is programmed for this and the proteins are digested. These proteins never make it to the bloodstream in their undigested form. When they are injected as a vaccine ingredient however, trouble can happen.
What happens next, is that the immune system can recognize and label these proteins as "foreign" and develop antibodies to them (remember that the adjuvants in the vaccine are there to trigger as big and as prolonged an immune response as possible, in an attempt to manufacture antibodies to the virus particles being injected). Once you have antibodies to a food protein, like peanut protein for instance, every new exposure to the protein - like when eating peanuts - can trigger an immune response, which would be labeled an allergic response. These allergic responses can range from mild to severe, with tragic consequences.
Ming Dinh BScOT, DCH