“Embarrassing. The masks dont help. Spread the word.”
What’s your source that shows that masks can’t block the virus?
The consensus in these articles is basically that it keeps the wearer’s sneezes from infecting somebody, but it will not stop airborne virus particles from getting in — they’re just too small, and the mask would need to be air-tight like a gas mask.
http://www.nbcphiladelphia.com/health/tips_info/Do-Masks-Stop-Swine-Flu.html
http://www.naturalnews.com/026160.html
http://www.mercurynews.com/twitter/ci_12248843?source=rss
This last article also gives some size comparisons for the virus and for the mask designation.
http://www.slate.com/id/2217045/
I happened upon three of these articles yesterday and today just making my normal internet rounds, so I assumed it was common knowledge.