The Centers for Disease Control and Prevention (CDC) is a federal agency that conducts and supports health promotion, prevention and preparedness activities in the United States, with the goal of improving overall public health. Established in 1946 and based in Atlanta, the CDC is managed by the Department of Health and Human Services .
Definition of ale. 1  1 : an alcoholic beverage brewed especially by rapid fermentation from an infusion of malt with the addition of hops. 2  2 : an English country festival at which ale is the principal beverage.
Beer is generally categorized into types according to the type of yeast used during fermentation. Ales are beers that use top-fermenting yeast, while lagers are those that use bottom-fermenting yeast. The choice of yeast provides the beer different characteristics, which can alter the look and taste of the brew.