Flu Cases Are Back On The Rise In The Region. The First Week Of April Is Typically When Flu Season Begins To Drop Off, But Residents Should Not Drop Their Guard Just Yet. Jamie Swift With Mountain States Health Alliance Said, After A Slight Decrease In Flu Cases Two Weeks Ago, The Numbers Are On The Rise Again. Last Week, Mountain States Saw 186 Flu Cases In The Emergency Departments. That’s Compared To 168 Cases The Week Before.