1 in 5 people infected with swine flu during initial yr of epidemic.

1 in 5 people infected with swine flu during initial yr of epidemic, WHO-led research shows At least one in five people worldwide had been infected with swine flu during the first calendar year of the 2009-2010 H1N1 pandemic, an international research group said on Friday, but the death count was 0 just.02 %, Reuters reports http://www.sildenafil-online.org/category/humans-deceases . The WHO-led study looked at more than 90,000 bloodstream samples before and during the pandemic in countries including India, Australia and the U.K., and demonstrated large numbers of people have been infected, although not all would have developed full-blown flu, BBC News notes .