Researchers have demonstrated a novel vaccine delivery method in an animal model, using dental floss to introduce vaccine via the tissue between the teeth and gums. The testing found that the new technique stimulates the production of antibodies in mucosal surfaces, such as the lining of the nose and lungs.
“Mucosal surfaces are important, because they are a source of entry for pathogens, such as influenza and COVID,” says Harvinder Singh Gill, corresponding author of a paper on the work. “However, if a vaccine is given by injection, antibodies are primarily produced in the bloodstream throughout the body, and relatively few antibodies are produced on mucosal surfaces.
“But we know that when a vaccine is given via the mucosal…
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