I saw photos from a China and Europe of people wearing full body plastic bags, or just a bag over their head or even large plastic bottle over the head. Is there any evidence, even anecdotal, about effectiveness?
Now people have to spend hours in long lines in grocery stores, in hospital emergency rooms where their risk of getting infected is very high. We need some protection. Washing hands is not enough when all your face and head is covered in other people's saliva droplets.
I understand that we should not wear masks because there is a shortage of them, they do not protect eyes, do not protect from touching face, etc. At the first glance a plastic bag solves all these problems. Today I made an experiment - took a wide brimmed hat and pulled a small transparent trash bag over it. I can wear it quite comfortably - the bag hangs freely and extends down just below my shoulders, some fresh air is coming from below, there is no fogging. Plastic does not touch my face (except during strong wind), so there is no discomfort. If I feel an urge to touch my face I can do it through the plastic. All droplets from peoples coughs and sneezes should remain on outer surface. Aerosol, of course, can drift upward with air, but I heard that coronavirus is very unlikely to be spread by aerosol. So, plastic should work, should it?