Schweinegrippe

Some physicians in the US are recommending the use of masks when in public. The purpose of a face mask is to effectively cover a person's mouth and nose so that if a person is around someone who is infected, there is a decreased likelihood of transmission. Recommendations to protect against the avian flu indicated that using a face mask with a rating of N99, N100 or P100 in the United States or a rating of FFP3 in Europe should be effective in protecting against transmission. While face masks with these ratings provide 99% or greater efficiency in protecting against flu transmission, N95 or FFP2 face masks provide about 94% efficiency.