Vaccines given via dental floss could one day allow people to immunize themselves from COVID in the comfort of their own homes without having to use needles.

This is the finding of North Carolina (NC) State University researchers who have demonstrated the new delivery method in an animal model—introducing a flu vaccine via the tissue between the teeth and gums.

The novel approach has potential for broad application, the team says.

"We expect the approach to work with COVID vaccine that uses mRNA, hepatitis and tetanus since they use subunit proteins as antigens, and other vaccines that use inactivated or attenuated viruses as antigens (such as MMR vaccine)," paper author and NC State nanomedicine professor Harvinder Singh Gill told Newsweek.

"In essence through proper formulation of th

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