ATLANTA, Ga.—The Centers for Disease Control believes only 45 percent of U.S. Adults and 63 percent of children got vaccinated last year. Our flu season in 2018 was one of the longest on record. The flu season is just wrapping up in Australia where health officials there says it was the worst on record. Australia is often the predictor of what to expect in the states. They reported the highest number of flu cases in their history more than four times the year before. the CDC says this should be a warning for Americans over 6 months of age to get flu shots now.