A man wearing a disposable mask poses next to a placard during a campaign (The Mask of Hero) promoting the use of face masks to prevent infection by the H1N1 flu virus, at a hospital in Nonthaburi province, on the outskirts of Bangkok, July 13, 2009. Thailand plans to speed up its domestic production of a vaccine to help manage the spread of type A (H1N1) influenza better, a local newspaper reported. (REUTERS/Chaiwat Subprasom)

Thais wearing disposable masks pose during a campaign promoting the use of face masks to prevent infection by the H1N1 flu virus, at a hospital in Nonthaburi province, on the outskirts of Bangkok, July 13, 2009. (REUTERS/Chaiwat Subprasom)