JACKSONVILLE, Fla. – Several counties across Northeast Florida are seeing a growing number of cases of influenza as flu season wears on, according to the Florida Department of Health. The health department routinely sends out a weekly bulletin that shows the status of reported flu cases throughout the state. While most counties are still seeing mild flu activity, the latest advisory shows three in our area – Clay, Duval and Marion – have been upgraded to moderate activity. So far this season, the most common type of flu has been the B strain, or what’s called the “Victoria lineage” strain. It’s still too early to predict which type of flu will be the predominate strain this season.