When the World Health Organization raised the influenza pandemic alert level from 4 to 5 was necessary to tell people to avoid kissing and to wear surgical face masks in public places in order to stop the epidemic. Since they knew that people on the streets were reluctant to wear them, they printed a message of goodwill on the masks to encourage people to use them. 5000 facemasks were given away outside subway stations. They ran out of masks within 30 minutes and people were placed to receive them. The message to use face masks in order to control the epidemic was spread all over the city.
Agency: Labase, Mèxico.