Three years ago, the nation's top public health agency picked its key battles. Now, its first report card on reaching those goals gives it a grade of pretty good but needs improvement.

The Centers for Disease Control and Prevention's seven "winnable battles" set specific goals for 2015 for things like reducing adult smoking and .

The CDC issued a progress report on Thursday and officials say they are mostly pleased.

The good news includes continued declines in car accident deaths, teen births and infections that spread in hospitals. But more work needs to be done on smoking, obesity and .

More information: CDC campaign: www.cdc.gov/WinnableBattles/