The Food and Drug Administration has approved a single vaccine to fight against the flu.

TheH1N1vaccine and two strains of seasonal flu vaccinewillbe combined into one dose.

Last year people had to get two different shots.

There are also changes to the guidelines for who should get the vaccine for the 2010-2011 season.

The Centers for Disease Control and Prevention now says everyone aged six months and older should be vaccinated, and most children up to eight years old should get two doses.

According to the CDC, between 5 and 20 percent of people in the U.S. get the flu each year.

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