masks may give people a wrong assumption of being safe. the sick may not wear masks and go out. flu virus may spread via public transportation. healthy people may not know how to protect themselves.
Scientists warn the next flu is coming soon. Asian bird flu is spreading easily from person to person. Masks protect people because they keep viruses away. Masks are not effective if a flu strikes.
stay alone when being sick. wear face masks when going to a crowded place. wear face masks wherever possible. remain at home if living with someone who’s sick.
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