For the moment, ponder the question of Quercetin + Bromelain with a zinc supplement. EGCg from green tea might be worth a look.
Yes! ... I have the remains of a gallon of green tea in the garage fridge. I keep my zinc znd D3 levels high during flu seasons. Haven’t had a vaccine for anything since decades ago. If I become symptomatic I will not hesitate to use HCQ and Zpak.