 The virus is currently less lethal than previous pandemic strains and kills about 0 @.@ 01 – 0 @.@ 03 % of those infected ; the 1918 influenza was about one hundred times more lethal and had a case fatality rate of 2 – 3 % . By 14 November 2009 , the virus had infected one in six Americans with 200 @,@ 000 hospitalisations and 10 @,@ 000 deaths – as many hospitalizations and fewer deaths than in an average flu season overall , but with much higher risk for those under 50 . With deaths of 1 @,@ 100 children and 7 @,@ 500 adults 18 to 64 , these figures " are much higher than in a usual flu season " . 
