Fascinating research was published in Jan 2018 describing how the HPV virus can remain hidden from a normal human immune response within the tonsil itself. How can the HPV virus manage this neat act of espionage? By hiding in the biofilm within tonsil crypts. One can consider biofilm to be a thin layer of "sludge" that may coat the tonsil lining. This finding may also explain why HPV oral infection appears to be so prevalent in so many adults and why HPV has now become one of th…