How to Significantly Slow Coronavirus , Masks4 All

EDIT: We have added a new and urgent message from the Minister of Health of the Czech Republic for other health ministers and governments: Please, share and help us to save lives around the world. A KEY ARGUMENT FOR USING HOMEMADE MASKS: Homemade masks are partly effective in individual protection, but they are essential for slowing the spread of the virus in the population. The main outcome of our studies was that they stop around 95100 of viruses