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While going without flu vaccination can mean risking an unpleasant few days of sickness for most, it can mean risking major illness and hospital time for those with certain conditions.
Shortly after US health officials took the precaution of approving a vaccine for the H5N1 bird flu strain, another strain is causing concerns for a different nation.
Talk of bird flu may make people a little nervous. So many will likely be relieved to hear that the US government has approved a vaccine to protect against one strain of the virus.
Sometimes it's easy to forget how common many diseases were before vaccines for them were introduced. When the disease is not around, people may not notice as much.
In 2009, there were concerns across the world about the H1N1 flu. It turns out that, overall, death rates from this flu pandemic weren't worse than those of other flu seasons — at least for some.