At the top of the article:
“ Note: The study at the centre of this article on the transmission of the coronavirus was retracted on Tuesday by the journal Practical Preventive Medicine without giving a reason. The South China Morning Post has reached out to the paper's authors and will update the article.”
If no masks and one needs to go to supermarket, what measures would help?
eg wearing bandana/kerchief is completely useless?
Order groceries delivered wipe down all surfaces with alcohol. Avoid supermarkets if possible
I've been using bleach in water.
> "Sodium hypochlorite required a minimal concentration of at least 0.21% to be effective."[1]