have as many tiers as you like bobbin as many bubbles as you like, be as strict as the Chinese in their totalitarian country, won';t stop this from spreading - until an effective vaccine is implemented across the country and thats going to take some while we are stuck with it. I feel sorry for everyone caught up in this mess. all those who have lost loved ones from it, all those who have lost their incomes no fault of their own, my local businesses which have all shut. and so much more.