World Health Organization reports 44 deaths in Mexico and the United States . U.S. Navy reports 12 crew members aboard USS Dubuque diagnosed with cancer . Dr. Sylvie Briand , acting director of the Global Influenza Program for the World Health Organization , said the agency will remain at pandemic alert level 5 -- one step away from its highest level -- because while there are an increasing number of cases , there is no evidence of the community transmission outside North America that would push the alert to level 6 . European agency says it has made critical first step to creating vaccine .
World Health Organization reports 44 deaths in Mexico and the United States . U.S. Navy reports 12 crew members aboard USS Dubuque diagnosed with cancer . European agency says it has made critical first step to creating vaccine .