FILE - This Oct. 17, 2012 file photo shows a patient getting a flu shot in Jackson, Miss. Flu vaccination is no longer merely a choice between a jab in the arm or a squirt in the nose. This fall, some brands promise a little extra protection.  For the first time, certain vaccines will guard against four strains of flu rather than the usual three.  (AP Photo/Rogelio V. Solis, File)

Too few in Indiana protected against flu

After influenza sickened millions of young and middle-aged adults last year, public health officials hope this year people follow their reco…