The role of Biofilms in COVID-19, chronic infection, and "Die Off" reactions

Life At Optimal with Dr. John Bartemus

Biofilms are suggested by the research to be involved in up to 80% of infections. The common presentation of a biofilm-based infection is one that responds to the same antibiotic everytime, but always comes back.

What is a biofilm? Why aren't antibiotics effective? Where do biofilms occur? Are they involved in "die off" reactions (aka Herxheimer Reactions)?

Could biofilms be involved in SARS-CoV-2 virulence and COVID-19 infections?

See my video on biofilms at: Biofilms cause chronic sinus, UTI, respiratory, and gut infections (t.ly/oMFq)