Dr. Harini Bhat (PharmD) | Science Storyteller on Instagram: "So, flossing might just be the new vaccination method?? Yes, you’re reading that right. I had to do a double take on this paper headline, but it’s legit! Harvinder Gill, PhD in Bioengineering was reading a dental research paper that gave him the ingenious idea. There are pockets between our teeth called the gingival sulcus that are fantastic at absorbing molecules. So, Gill thought, why not use this to absorb vaccines too? The natural