We have only one defense against the Delta Variant that I have been able to find. It is not a vaccine. It is the potential use of a nebulizer with AR-712 cocktail by Aridis. But the last time I tried I could not buy a nebulizer without doctor Rx. Fortunately I have a nebulizer. There may be other preventive measures emerging but this is the only one I have been able to find. The Delta Variant hides from the immune system that is why it is spreading.
The best is the monoclonal antibody option, but its availability is quite limited in virtually all states but Florida (and only NOT Florida as of yesterday).
Otherwise, the protocols from FLCCC are of great benefit for most.
Additionally, some great research has been done on available OTC supplements, with me posting just these two, yesterday:
NAC:
https://freerepublic.com/focus/f-chat/3984370/posts
Curcumin:
https://freerepublic.com/focus/f-chat/3984391/posts