It's not being suppressed. Policy needs to have a basis in research and scientific consensus, and my understanding is that there is not currently a great deal o

It's not being suppressed. Policy needs to have a basis in research and scientific consensus, and my understanding is that there is not currently a great deal of research on exposure to small amounts of virus on humans, in real life conditions. For one thing, there are major ethics and safety issues to studying this. For another, viruses don't all behave the same.