Soldiers handing out face masks in Mexico City during the outbreak of H1N1 (swine flu) in 2009.
Photo from Flickr: www.flickr.com/photos/eneas/3479195270/

Soldiers handing out face masks in Mexico City during the outbreak of H1N1 (swine flu) in 2009.
Photo from Flickr: www.flickr.com/photos/eneas/3479195270/


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